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Anatomy of the Reproductive System Flashcards

Covers both the Male and Female Reproductive Systems

Name the portions & functions of the male reproductive system.
Identify the specific structures of the male reproductive anatomy & their respective functions.
Explain the mechanisms behind erection, spermatogenesis, emission, and ejaculation.
Describe the pathway sperm take through the reproductive tract.

Name the portions & functions of the female reproductive system.
Identify the specific structures of the female reproductive anatomy & their respective functions.
Explain the mechanisms behind female erection, ovulation, oogenesis, and menstruation.

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1845950967FUNCTIONS OF REPRODUCTIVE SYSTEM (Male & Female)Produce reproductive cells (i.e., gametes) Gametes: Sex Cells (Sperm or ovum joining to form an embryo) Produce sex hormones that influence the structure & function of all other systems0
1845950968FUNCTIONS OF REPRODUCTIVE SYSTEM (Female Only?)Nourish, support, & give birth to a human fetus *(female only)*1
1845950969BASIC PARTS OF REPRODUCTIVE SYSTEM (Male & Female)1) Gonads (Testes: Male, Ovaries: Female) -produce gametes 2) Reproductive Tract -series ducts which receive, nourish, store, & transport gametes 3) Accessory Glands (Totally different b/w males and females) -responsible for the secretion of fluids 4) Perineal Structures (i.e., external genitalia) -organs of sexual arousal and sexual intercourse2
1845950970THE PERINEAMArea between the legs Lower Pelvic Region What is visible -> External Genitalia3
1845950971PARTS OF MALE REPRODUCTIVE SYSTEM1) Gonads -testes (produce spermatozoa & testosterone) (The testes are the main producers of sperm) 2) Reproductive Tract (Several Parts) -epididymis (Mainly a storage unit for sperm) -ductus/vas deferens (Long tubes that transport sperm to the urethra) -ejaculatory duct (Short duct: connects the vas deferens to the urethra) -urethra (Part of both the Urinary AND Reproductive System) 3) Accessory Glands -seminal glands (Q: 2) -prostate gland (Q: 1) -bulbo-urethral glands (Q: 2) 4) External genitalia -scrotum -penis4
1845950972PARTS OF FEMALE REPRODUCTIVE SYSTEM :1) Gonads -ovaries (equivalent to testes) (produce ova(Instead of sperm), estrogen, progesterone, & testosterone) <- Not just testosterone like in Males! 2) Reproductive Tract (Series of hollow tubes) -uterine tubes -uterus -vagina 3) Accessory Glands -mammary gland (in breast) -greater vestibular glands (Located near the vagina) 4) External genitalia -labia minora & majora (Folds of Skin) -clitoris5
1845950973IMPORTANCE OF TESTOSTERONE IN FEMALESIncrease a gal's sex drive and help with building muscle!6
1845950974NAME THREE STRUCTURES THAT PASS THROUGH THE SPERMATIC CORDDuctus/Vans Deferens Testicular Vein Testicular Artery7
1845950975FUNCTION OF THE SPERMATIC CORDCommunication between the tests and the abdomen. It also serves to suspend the testes in the scrotum.8
1845950976THIS LIGAMENT SERVES AS A DISTINCTION POINT B/W THE PELVIS AND THE LOWER LIMB. (WHERE THE FEMORAL ARTERY BEGINS)Inguinal ligament9
1845950977LOCATION OF THE CREMATOR MUSCLECovers the testis and its spermatic cord10
1845950978DESCRIBE THE SCROTUMSac-like structure that covers each testis11
1845950979NAME THE REPRODUCTIVE ORGANS LOCATED IN THE FEMALE PELVISOvaries, Uterus, Vagina, and the Clitoris12
1845950980UTERUS SITS ABOVE WHAT URINARY ORGAN?The Bladder13
1845950981TRUE OR FALSE: THE VAGINA IS DIRECTLY ATTACHED TO THE UTERUSTRUE :D14
1845950982WHAT IS THE DIVISION POINT BETWEEN THE INTERNAL ORGANS AND THE PERINEAM (EXTERNAL GENITALIA)?Urogenital Diaphragm15
1845950983MOST OF A MALES REPRODUCTIVE ORGANS ARE LOCATED IN WHAT REGION OF THE BODY?The Pelvis16
1845950984THE VAS DEFERENS CONNECTS THE TESTES TO THE ________.Urethra17
1845950985PATH OF THE VAS DEFERENSConnects all the way from the testes, goes behind the bladder, where it connects directly to the Urethra.18
1845950986TRUE OR FALSE: THE URETHA SERVES BOTH A URINARY AND REPRODUCTIVE FUNCTIONTRUE :D19
1845950987MALE ASSESORY GLAND RIGHT BELOW THE BLADDER?Prostate Gland20
1845950988IN A MALE, THE UROGENITAL DIAPHRAGM SITS IN BETWEEN WHAT TWO STRUCTURES?The Prostate Gland and the Penis21
1845950989TRUE OR FALSE: NOT ALL OF THE PENIS IS EXTERNALLY VISIBLETRUE :D22
1845950990THE SPERMATIC CORD LEADS INTO THE ________Testes23
1845950991NAME FOR THE CONNECTIVE TISSUE THAT COVERS EACH OF THE TESTES. (LIKE HEART PERICADIAL LAYERS: CREATES A SEROUS FLUID THAT WILL SURROUND THE TESTES AND LIMIT DAMAGE TO THEM)Tunica Vaginalis24
1845950992THE SCROTAL SEPTUM WORKS TO DIVIDE WHAT?The scrotum into two separate chambers25
1845950993DESCRIBE AND NAME THE TWO MAJOR FUNCTIONS OF THE CREMATOR MUSCLESkeletal Muscle (Both voluntary and involuntary) Functions: 1) Sexual arousal - skeletal contraction will work to move the testis closer to the body, skeletal relaxation with suspend the testis at the lowest possible point away from the testis (Important because this would actively decrease the distance the sperm would have to travel 2) Temperature fluctuations - Sperm thrive in 2 degree Celsius around body temperature. The muscle regulates temperature by shortening (Increases temp or temperature retention ) the testis or lengthening (Decreases temps) the testis26
1845950994STRUCTURES IN THE SPERMATIC CORD ALL FAVOR SPERM PRODUCTION BE REGULATING ________.Heat27
1845950995WHICH PLEXUS IS PART OF THE TESTICULAR VEIN AND SURROUNDS THE TESTICULAR ARTERY IN A COMPLEX NETWORK?Pampiniform Plexus, otherwise known as the "heat sink" ^Something that draws away heat from an object28
1845950996WHY DOES THE PAMPINIFORM PLEXUS SURROUND THE TESTICULAR ARTERY?Surrounds the artery so that if there is too much heat in the testis region, the pampiniform plexus will draw blood (a good conductor of heat) away from the testes, drawing away HEAT.29
1845950997THE TESTES IS COVERED BY BOTH A ________ LAYER AND ________ LAYER OF TUNICA VAGINALISVisceral, Parietal30
1845950998IN BETWEEN THE VISCERAL AND PARIETAL TUNICA VAGINALIS IS KNOWN AS WHAT? WHAT DOES IS PRODUCE?Scrotal cavity which holds the serous fluid (Doesn't allow the testes to rub against a structure and suffer easy abrasion)31
1845950999UNLIKE THE CREMASTER MUSCLE, THE DARTOS MUSCLE IS COMPLETELY ____&_____.Involuntary & a layer in the scrotum itself32
1845951000FUNCTION OF THE DARTOS MUSCLESmooth muscle: Completely involuntary Causes wrinkling of the scrotum itself (Serves for heat regulation) No wrinkling in the scrotum: Increases the surface area for heat to be released If too cold: Muscle will contract and cause wrinkling in the scrotal sack to Increase temp (When less surface area is exposed to the air, less heat will be released from the scrotum)33
1845951001DESCRIBE THE INNERVATIONOF THE SPERMATIC CORDThe genital branch of the GENITOFEMORAL NERVE This nerve is in charge of both sensory and motor functions. Sensations: On the scrotum skin Innervates: The cremaster muscle (Reason this muscle will contract!)34
1845951002FUNCTION OF THE SUPERFICIAL INGUINAL RINGThis is the landmark where the spermatic cord in the inguinal canal exits into the abdominal wall (the anterior muscles that hold organs in place)35
1845951003THE DEEP INGUINAL RING IS WHEREall the structures exit the abdomen to get to the superficial inguinal ring.36
1845951004THE SPACE BETWEEN THE DEEP AND SUPERFICIAL INGUINAL RINGS IS KNOWN AS THE ___________.Inguinal canal37
1845951005NAME THE TWO INGUINAL CANAL RINGSRings in the inguinal canal are perforations of that muscle and usually cannot be seen Deep inguinal ring: Pierces the beginning of the abdominal wall Superficial inguinal ring: Only thing you can see on a cadaver38
1845951006DESCENT OF THE TESTES: DESCRIBE THE GUBERNACULUM TESTISA connective tissue that attaches the testis and scrotum together. Inside the womb at two months that testes are inside the abdomen. 4-7 months this tissue will begin to pull down the testis into the scrotum down the abdominal musculature: causing the spermatic cord to form. Never once changing in size!39
1845951007THE EXTERNAL OBLIQUE EXTERNAL SPERMATIC FASCIA IS?Connective tissue that surrounds all structures in the scrotum40
1845951008DESCENT OF THE TESTES SUBCUTANEOUS ABDOMINAL TISSUE -> INTERNAL OBLIQUE ->SUBCUTANEOUS ABDOMINAL TISSUE -> The Dartos Muscle INTERNAL OBLIQUE -> The Cremator Muscle41
1845951009THE SKIN THAT MAKES UP THE ABDOMEN THAT IS DRAGGED DOWN BECOMES?The scrotal skin42
1845951010DESCRIBE ABDOMINAL HERNIASThe intestine will come out of some sort of weakening in the abdominal wall. Most common in males! Why? Males have weakened abdominal areas in the abdominal wall (Inguinal canal because of spermatic cord piercing) where the intestine can pass43
1845951011TWO TYPES OF INGUINAL HERNIASIndirect: A person is born with this. Cause because the inguinal ring will not full close and the intestine will go through the inguinal canal Direct: Usually with older men due to intense strain. Intestine goes through abdomen and exits through the superficial ring.44
1845951012THE TESTES: NAME THE DUCTS THAT CARRY SPERM BETWEEN THE TESTIS AND THE EPIDYDIMISEfferent ductules45
1845951013THE TESTES: LABLE THE PARTS OF THE SCROTUM AND TESTES FROM EXTERNAL TO INTERNALScrotum (Skin > Dartos Muscle > Superficial scrotal fascia) > Cremater Muscle > Tunica Vaginalis (Parietal > Scrotal Cavity > Visceral) > Testis46
1845951014DESCRIBE THE INTERNAL STRUCTURE OF THE TESTESThe testis contain different LOBULES separated by the septum: SEPTA. Each lobule contains these bunched up SEMINIFEROUS TUBULES which can stretch half a mile long for each testis. These tubules are the producers of sperm. The sperm produced will collect into the RETE TESTIS network in the MEDIASTINUM OF TESTES. This is located in the superior portion of the testis. Functions to pull all the sperm from each of the tubules and collect it though the rete testis. The sperm are then drained through the EFFERENT DUCTULES into the epididymis.47
1845951015FOR EVERY UNDIFFERENTIATED SEX CELL HOW MANY SPERM WILL BE PRODUCED? HOW DOES THIS CONTRAST WITH FEMALES?FOUR FUNCTIONAL SPERM Females only produce one mature haploid gamete48
1845951016HAPLOID DEFINITIONHalf the # of chromosomes49
1845951017SPERMATOGENESIS DEFINITIONProduction of sperm50
1845951018THE EPIDIDYMID IS THEStorage unit for sperm51
1845951019CAPACITATIONProcess where sperm is made functionally mature 1) MOTILITY - In the reproductive tract - During Ejaculation 2) Capable of Fertilizing - Not Capable of this until the sperm come in contact with the acidity in the Vagina (Substances in the Vagina are necessary to complete Capacitation)52
1845951020PARTS TO A SPERMFlagellum: (Tail - only example of this in the human body) Acrosomal cap: (Membrane that protects the nucleus in the head) Head: Contains the nucleus (Chromosomes)53
1845951021EMISSION:Contractions in smooth muscle of vas deferens, seminal glands, prostate Sympathetic nerve control! (Part of the Autonomic NS: Involuntary)54
1845951022THE MALE REPRODUCTIVE TRACT CAN BE DESCRIBED ASA series of hollow tubes responsible for the transportation of sperm (pushing sperm outside of the body) Tube: Made of Smooth muscle55
1845951023SPERM PATHWAYCoiled seminiferous tubules will lead sperm in straight tubules which will exit into the Rete testis in the mediastinum. From there the sperm will empty into the Head of the Epididymis through Efferent ductules. Eventually will travel to the tail of the epididymis, ready for ejaculation: Vas deferens travels through the Inguinal canal to get to the abdomen where it travels behind the Bladder to connect Excretory Duct into the Ejaculatory Duct and into the Urethra.56
1845951024What differentiates the Epididymis from the Vas Deferens?The vas deferens is not coiled like the epididymis. Because it needs to get its substance through fast!57
1845951025Describe the Epididymishuge one continuous coiled tube (storage unit for a ton of sperm!) Takes about two weeks for sperm to travel through the Epididymis (This is a constant process) Three parts: Head of Epididymis: Pulls sperm away from the testis Body of Epididymis Tail of Epididymis: Sperm will eventually go here (at the bottom) ready for ejaculation.58
1845951026Difference between Vas Deferens and Ureter.Ureters go into the bladder. The Vas deferens goes behind the bladder to connect directly to the Ejaculatory duct.59
1845951027ROLE OF ACCESSORY GLANDS1) Activate sperm motility -secrete fluids that allow sperm to swim Provide nutrients -necessary for continued motility & life of sperm (to the egg) Produce protecting (chemical) buffers -counteract acidity of male urethra & vaginal contents (disadvantageous environment) a - Eliminates uric acid in the urethra b - Counteractive to acidity in vaginal environment60
1845951028Name the three male accessory glands:1) Seminal Vesicle/ Gland (Secretes fluid) 2) Prostate Gland 3) Bulbo-urethral gland (Underneath the prostate)61
1845951029Functions of the male accessory glands1) Initiate sperm motility (Release Seminal Fluid which contains fructose, a sugar that will give energy and nutrients to the sperm. 2)Secretes a milky white substance (Alkaline - Combats acidity) 3)Secretes the sticky substance well before ejaculation (During male sexual arousal - serves to neutralize uric acid in the urethra. Also helps lubricate the tip of the penis62
1845951030Ejaculatory duct orificeThe only point you will get sperm into the urethra63
1845951031Prostatic UrethraFirst part of the Urethra: Located in the Prostate64
1845951032Membranous urethraPart of the Urethra that passes through the Urogenital Diaphragm65
1845951033Spongy urethraNamed from the erectile tissue (Part of the penis)66
1845951034Glans PenisBulbos ip of the Penis. EXTENSION (same tissue) of the corpus spongiosum67
1845951035BULBOSPONGIOSUS MUSCLEpushes semen through external urethral orifice. Covers base of the penis. Corpus spongiosum is a type of erectile tissue.68
1845951036ISCHIOCAVERNOSUS MUSCLE(An already stiff penis) stabilizes penis. Corpus cavernosa is its erectile tissue69
1845951037Pudendal Nerve and Internal Pudendal Artery and VeinInnervates and supplies all of the perineal structures70
1845951038PrepuceForeskin: Covers the glans71
1845951039Both Urine and Semen leave the penis through what orifice?External Urethral Orifice72
1845951040Corpus Cavernosum(A male will have two) Makes up top part of the penis. Main erectile tissue: fills up with blood the most73
1845951041Corpus SpongiosumForms a thin ridge at the bottom of the penis. Surrounds the spongy urethra.74
1845951042Bulb of the Penis is part of what erectile tissue?Corpus Spongiosus and is covered by the Bulbospongiosus muscle.75
1845951043Crus of the PenisOn the right and left (legs) Attached to the Ischium. The Ischium cavernosus muscle covers this.76
1845951044ERECTILE TISSUEVascular channels separated by elastic connective tissue & smooth muscle Chambers fill with blood during erection77
1845951045Behavior of the Corpus spongiosum and cavernosa during an erect penisThe cavernosa expands while the spongiosum enlarges very little. (It cannot enlarge too much because would pinch the urethra shut.78
1845951046MALE ERECTIONTriggered by parasympathetic nervous system (Involuntary) Nerves will trigger -> Vasodilation -Corpora cavernosa (and to lesser extent corpus spongiosum) engorge with blood Ischiocavernosus & Bulbospongiosus contractions compress veins in the penis & prevent return of blood to the heart (until it needs to get oxygenated.)79
1845951047Mammary GlandsSpecialized Accessory Organs (Modified Sweat Glands) for Lactation These are working and functional (Unlike men)80
1845951048The Breast is made up ofPectoralis Major Muscle, Adipose Tissue, Suspensory ligaments, Mammary Glands, Lactiferous duct, Lactiferous sinus and the Areola and Nipple81
1845951049Suspensory ligaments in the breast serve tohold the breast tissue together82
1845951050Describe the Lobules of mammary glands in the female breastLittle sacs where milk is produced83
1845951051Describe the Lactiferous DuctCollect all of the milk from all of the Lobules84
1845951052Lactiferous sinusStorage unit for the milk until its time to nurse and will come through the nipple85
1845951053The glans in the clitoris in females is the same as what in males?The glans of the penis86
1845951054Mons PubisFat pad that sits on the Pubic Bone (Otherwise known as the Mound of the Pubis)87
1845951055What is the Labia Minora? Labia Majora?Minora: Softer, pinker lips in the middle. Wraps around the Vagina Majora: On the outside: are large (Contain pubic hair)88
1845951056The Vesitibule is thespace created by the Labia Minora89
1845951057The Vaginal Orifice is theOpening to the Vagina (Tube)90
1845951058Some homologous features surrounding male and female genitalia include:Corpus Cavernosum: Erectile tissue that will fill with blood when aroused Males (Made up of Corpus Spongiosum underneath the penis) Females (Vestibular Bulb Flanks the vagina underneath the labia majora - bulges when female is aroused)91
1845951059Prepuce of the ClitrorisForeskin that normally covers the clitoris92
1845951060Labia majora in females is homologous to what in males?Homologous to the scrotum in males. (Empty sacs of skin) The ovaries don't fall down like the testes so just empty93
1845951061The greater vestibular gland in females is homologous to what structure in males?Homologous to the Bulbourethral glands in Males.94
1845951062Function of the greater vestibular gland in femalesLubricates the outside area of the lips in Females. Lies right underneath the vestibular bulb.95
1845951063BULBOSPONGIOSUS MUSCLE in Femalesconstricts vaginal orifice & assists orgasm Fits on either side of the Vagina and covers the bulb of the Vestibule when contracted. contrast: In males it helps push sperm through the Corpus Spongiosum96
1845951064ISCHIOCAVERNOSUS MUSCLE in Femalesmaintains clitoral erection. Homologous to males (Helps maintain erection as well)97
1845951065The Perineum is supplied by blood by theInternal pudendal artery and vein98
1845951066The Perineum is innervated byThe Pudendal nerve99
1845951067Which of these structures is not innervated by the Pudendal Nerve? a) Clitoris b) Vestibular Bulb c) Greater Vestibular Gland d) Ovariesd) Ovaries100
1845951068The Uterus lies on top of what urinary structure?The Bladder101
1845951069Tube that connects the ovaries to the UterusUterine Tube102
1845951070Unlike the Male, the Broad ligament in the Female Pelvic CavityCovers all of the reproductive organs by this thin tissue.103
1845951071Name the arteries that supply blood to the interior reproductive organs (Female)Vaginal arteries, Uterine Artery, Internal Iliac Artery and the Ovarian Artery104
1845951072What differentiates the ovarian artery from the other pelvic female arteries?It is the only artery that does not come off from the Internal Iliac105
1845951073FUNCTIONS OF THE UTERUS: PregnancyProtection Nutrient support (Main Function) Waste removal Labor (expelling mature fetus) (Contractions of the Uterus) **Menstruation is a by-product of uterine preparation for pregnancy106
1845951074The Uterine tube in females is homologous to what structure in Males?The Vas Deferens107
1845951075The Uterine Tube functions totake ova from the ovaries Made of Smooth Muscle : Contractions help push the ova (Just like sperm in males!!!)108
1845951076Division of the Cervix and the UterusInternal Os109
1845951077At the beginning of the Cervical canalExternal Os110
1845951078Cervix projects in the ________.Vagina111
1845951079Ovarian LigamentConnects the Ovaries to the Uterus (Prevents these two structures from coming apart)112
1845951080Suspensory LigamentAnatomical Landmark ONLY The Ovary does not need to be suspended113
1845951081Broad ligament:Prevents the Uterus from rocking side to side114
1845951082Uterosacral LigamentPrevents anterior movement by connecting back part of the uterus roots down into the sacrum115
1845951083FornixFunctions in holding sperm (widened near the cervix) until the sperm can swim into the cervix116
1845951084Round ligament of UterusPrevents posterior Movement! by pulling from the front of the uterus. Goes from the fundus of the uterus through the INGUINAL CANAL and attaches to the labia majora117
1845951085FUNCTIONS OF THE VAGINAPassageway for menstrual fluid expulsion Receives penis during sexual intercourse Holds sperm before it passes into the uterus Labor (expelling mature fetus) **Acidic Environment -> Keeps the vagina from getting infected by killing off foreign substances. This is a hostile environment for sperm. How do sperm avoid this? The seminal fluid + Prostate fluid (Anti-acidic chemicals) Full capacitation: Breaks down the membrane on the head so that the nucleus can reach and eject in to the egg. takes away the barrier!118
1845951086OOGENISISWith each step one egg will take all of the cytoplasm. Ends up being the ovum. One undifferentiated cell -> on ovum119
1845951087Ovarian Cycle is divided into two phases:1) Follicular Phase: 1st half of the ovarian cycle. The follicle will produce estrogen. (Dominated by estrogen) 2) Luteal Phase: Follicle becomes the Corpuse luteum: Secretes progesterone (Important for the maintenance of pregnancy)120
1845951088Function of estrogen in the Ovarian CycleHelps prepare the lining of the Uterus121
1845951089ProgesteroneIn Charge of maintaining the environment throughout pregnancy122
1845951090What happens when the gal turns out to be NOT pregnant?Both hormones will drop significantly (Lining that is very vascularized sheds and is known as menstruation)123
1845951091The ampulla is wherefertilization happens. If there is no sperm in this location, no fertilization. How do we still easily get knocked up? SPERM CAN SURVIVE UP TO FIVE DAYS IN THE REPRODUCTIVE TRACT.124

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