Muscular System
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| 51385088 | Skeletal Muscle | multinucleated, striated, voluntary, along the bones | |
| 51385089 | Smooth muscle | no striations, single nucleated, involuntary, in the digestive tract and blood vessels | |
| 51385090 | Cardiac Muscle | stirations, single nucleated, in the heart, involuntary | |
| 51385091 | Functions of the Skeletal system | movement, posture, stabilixe joints, generate heat | |
| 51385092 | sarcomere | unit of muscle fiber | |
| 51385373 | Actin | thin protein filaments of muscle fibers | |
| 51385374 | Myosin | thick protein filaments of muscle fibers | |
| 51531940 | Irritability | ability to recieve and respond to a stimulus | |
| 51531941 | Contractility | ability to shorten when an enough stimulus is given | |
| 51531942 | Brain and Spinal Cord | a skeletal muscle that must be stimulated by a nerve to contract | |
| 51531943 | Neuromuscular junctions | site where nerve and muscle meet | |
| 51531944 | Synaptic Cleft | gap between nerve and muscle | |
| 51531945 | Neurotransmitter | chemical release by nerve impulse is sent | |
| 51531946 | Soduim | rushes into the cell and generates an action potential | |
| 51531947 | Contraction | muscle is shortened | |
| 51531948 | Twitch | breief contraction, non-normal muscle function | |
| 51531949 | Tetanus | summing of contractions | |
| 51531950 | Incomplete tetanus | some relaxation between contractions | |
| 51531951 | Complete tetanus | no relaxation | |
| 51531952 | Areobic resperation | glucose broken down to carbon dioxide, requires continuous oxygen | |
| 51531953 | Anerobic glycolysis | makes lactic acid, produces muscle fatigue | |
| 51531954 | Isotonic contractions | the muscle shortens | |
| 51531955 | Isometric contractions | the muscle is unable to shorten | |
| 51531956 | Origin | attachment to a immoveable bone | |
| 51531957 | Insertion | attachment to a moveable bone | |
| 51531958 | Extension | to straighten | |
| 51531959 | Dorsiflexion | on heel | |
| 51531960 | Flexion | to bend (180 degrees) | |
| 51531961 | Plantar flexion | on toes | |
| 51531962 | Adduction | twards the middle | |
| 51531963 | Abduction | away from the middle | |
| 51531964 | Circumduction | in a circle (360 degrees) | |
| 51531965 | Rotation | turn up to 180 degrees | |
| 51531966 | Supination | closed to open | |
| 51531967 | Pronation | open to close | |
| 51531968 | Inversion | on the outside foot | |
| 51531969 | Eversion | on inside foot | |
| 51531970 | Depolarized | Na+ rushing into cell, changing charge of a cell, negative to positive | |
| 51531971 | Repolarized | cells relaxed because K+ comes out of the cell | |
| 51531972 | Ca2+ | electrolyte that unlocks muscle cells |