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13510186710Pulmonary Ventilationbreathing air is moved into and out of the lungs so the gas is exchanged0
13510186711External respirationO2 and Co2 exchange between the lungs and the blood1
13510186712Transport of respiratory gasesO2 and CO2 transported in the blood2
13510186713Internal RespirationO2 and Co2 exchange between systemic blood vessels and tissues3
13510186714Functions of Nasal cavity and nasal conchaemoistens and warms entering air, assists with filtration and warming of air.4
13510186715Paranasal sinuseslightens skull, secrete mucus, help warm and moisten air5
13510186716what is the major parts/location/ and tissue type of pharynxfunnel shaped tube connects nasal cavity and mouth to larynx6
13510186717what are the three regions of the PharynxNasopharynx, Oropharynx, Laryngopharynx7
13510186718Nasopharynxair passage posterior to nasal cavity, contains pseudostratified columnar epithelium8
13510186719Oropharynxpassageway for food and air from level of soft palate, stratified squamous epithelium9
13510186720Laryngopharynxpassageway for food and air, lined with stratified squamous epithelium10
13510186721location and framework of larynxto provide a patent airway voice production, attaches to the hyoid bone11
13510186722vestibular foldscalled false vocal cords, no part in sound production12
135101867233 layers of tissue in tracheamucosa, submucosa, adventitia13
13510186777purpose of trachealis muscle and c14
13510186724shaped cartilage rings of tracheaconnects posterior part of cartilage rings c15
13510186778shape allow large bolus of food to be swallowed easily16
13510186725what structure marks the end of the bronchicarina of the last tracheal cartilage marks the end of the trachea and beginning of the bronchi, respiratory bronch to end the bronch17
13510186726air blood barrier is composed ofalveolar and capillary walls18
13510186727alveolar wallsare a single layer of simple squamous19
13510186728type 2 cellsreduce surface tension20
13510186729terminal and respiratory bronchiolesrespiratory bronchioles lead to alveolar ducts, then to terminal clusters of alveolar sacs composed of alveoli.21
13510186730purpose of alveoli15 times thinner than a sheet of paper, contains open pores that allow air pressure to be equalized in the lungs, keep surfaces sterile.22
13510186731apexsuperior tip of lung23
13510186732Baseinferior surface that rests on the diaphragm24
13510186733Hilumsite of attachment of blood vessels25
13510186734Notchplace where the heart sits26
13510186735Left Lungseparated into upper and lower27
13510186736Right lungSeparated into three lobes28
13510186737bronchial arteriesprovide oxygenated blood to lung tissue29
13510186738pulmonary veinscarry most venous blood back to heart30
13510186739intrapulmonary pressureair within the lungs, fluctuates with breathing P31
13510186779pul32
13510186740intrapleural pressurepressure in the cavity always a negative pressure/promote lung collapse P-ip33
13510186741transpulmonary pressure(P-pul)-(P-ip) if they equal each other the lungs will collapse, pressure keeps the lungs open34
13510186742atelectasislung collapse35
13510186743type 1 cellsType 1 Epithelial Cells are also known as squamous alveolar Cells and these types of lung cells make for the alveolar wall. These cells form almost 95% of the surface occupied by alveoli.36
13510186744Type 2 cellsgreat alveolar cells and occupies the rest of the space in alveoli. Since, these cells are in the shape of cuboid, they are even called cuboidal cells. They are those types of lung cells which are generally found in the blood-air barrier37
13510186745pleuraprovides lube from the lungs38
13510186746boyle's law↑ Volume = ↓ pressure39
13510186747factors that lower lung complianceScar tissue/blockage/decrease ability to expand/no lube40
13510186748surfactantproduced by type 2 cells/ reduce surface tension41
13510186749Dalton's lawpartial pressure is equal to sum pressure42
13510186750Henrey's laweach gas will desolve in relation to its own pp43
13510186751TVair that moves into and out of the lungs with each breath44
13510186752IRVair that can be forced out beyond TV45
13510186753ERVair that can be taken in after the TV46
13510186754RVair that cannot be pushed out47
13510186755FRCair remaing in lungs after expiration48
13510186756VCtotal amount of exchangable air49
13510186757normal vent6L/min50
13510186758Exercise Vent200mL/ Min51
13510186759external Respirationexchange of O2 and Co2 across the Respiratory membrane52
13510186760Co2 is ___ time more solube in plasma than O22053
13510186761Co2 diffuses is ___ to O2equal54
13510186762Haldane EffectThe lower the Po2 and hemoglobin saturation with O2, the more CO2 can be carried in the blood At the tissues, as more carbon dioxide enters the blood More oxygen dissociates from hemoglobin (Bohr effect) As HbO2 releases O2, it more readily forms bonds with CO2 to form carbaminohemoglobin55
13510186785Hemoglobin56
13510186763Nitric Oxide PartnershipNitric oxide (NO) is a vasodilator Hemoglobin is a vasoconstrictor and a nitric oxide scavenger (heme destroys NO) As oxygen binds to hemoglobin Nitric oxide binds to a cysteine amino acid on hemoglobin Bound nitric oxide is protected from degradation by hemoglobin's iron As oxygen is unloaded at tissues, the NO is released, causing vasodilation, and more delivery.57
13510186764Ventilationamount of gas reaching the alveoli58
13510186765Perfusionblood flow reaching the alveoli59
13510186766Ventilation and perfusion must bematched (coupled) for efficient gas exchange60
13510186767Changes in Po2 in the alveoli regulatearteriolar diameter61
13510186768Changes in Pco2 in the alveoli regulatebronchiolar diameter62
13510186769Respiratory Membrane EfficiencyDifferences in partial pressure Small diffusion distance Lipid‐soluble gases Large surface area of all alveoli Coordination of blood flow and airflow (alveolar ventilation, blood perfusion) Structural characteristics of membrane63
13510186770Partial pressure gradient for CO2 in the lungsVenous blood Pco2 = 45 mm Hg Alveolar Pco2 = 40 mm Hg64
13510186771Partial pressure gradient for O2 in the lungsVenous blood Po2 = 40 mm Hg Alveolar Po2 = 104 mm Hg65
13510186772pneumothoraxpresence of air or gas in the cavity between the lungs and the chest wall that could collapse the lungs66
13510186773What is ACEAngiotensin converting enzyme Angiotensin turns into angiotensin 267
13510186774surfactantReduces surface tension (attracts liquid molecules to one another at a gas68
13510186786liquid interface) of alveolar fluid and discourages alveolar collapse69
13510186775low phrelease O270
13510186776High Phhold on to O271
13510186787draw sturation curve72
13510186788Draw RBC bringing 02 to the tissue73
13516452111CO2+H20 <--> H2CO3 <--> _______H+Hco374
13516473086hypercapniaexcessive carbon dioxide in the blood75
13516480244hypocapniacondition of deficient carbon dioxide (in the blood)76
13516486929respiratory acidosisA drop in blood pH due to hypoventilation (too little breathing) and a resulting accumulation of Co2. hypercapnia77
13516495581respiratory alkalosisArise in blood pH due to hyperventilation (excessive breathing) and a resulting decrease in CO2. hypocapnia78

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