| Question |
 |
|
| Answer |
|
|
| Fasicle |
Bundle of Muscle Fibers |
| Tendon |
Connects Bone to Muscle |
| Aponeurosis |
Sheet like tendon |
| Sarcomere |
Unit bordered by z lines that contain Actin & myosin |
| Sarcolemma |
Cell membrane of a muscle cell |
| Actin |
Thin fibers involved in muscle contraction |
| Myosin |
Thick fibers involved in muscle contraction |
| Motor Neuron |
Nerve that innervates skeletal muscle |
| Motor Unit |
Muscle and nerve together |
| Calcium |
Attaches to Tropomin which slides Tropomyosin off of Actin |
| Sarcoplasmic Reticulum |
Stores calcium in skeletal muscle cells |
| T-Tubule |
Carries action potential deep inside muscle cell |
| Concentric |
Isotonic Movement |
| Eccentric |
Isotonic movement |
| Isometric |
No movement |
| Recruitment |
Increased # of Motor Units |
| Myoglobin |
makes red muscle red |
| Gap Junctions |
Single unit smooth muscle junctions |
| Intercollated Discs |
found in Cardiac Muscle |
| Striated & Several Nucleii |
Skeletal Muscle |
| ATP attached to... |
Mysoin heads |
| Neuromuscular Junction |
Axon & Muscle |
| Refractory Period |
Muscle loses its excitability |
| Latent Period |
Stimulus applied & muscle actual contraction |
| Action potential releases... |
Calcium from Sarcoplasmic Reticulum |
| Epimysium |
outermost layer surrounding muscle |
| Perimysium |
Surrounds each fasicle |
| Endomysium |
Surrounds each muscle fiber |
| Myofibril |
Proteins found in muscle fibers |
| z lines |
Borders between saccomeres |
| Smooth Muscle |
Autonomic, Non-striated, single nucleus, Calcium binds to Calmodulin |
| Multi Unit smooth muscle |
Individual cells that must each be stimulated |
| Single unit smooth Muscle |
gap junctions between cells, one action potential contracts all cells |
| Cardiac Muscle |
Striated, sarcomeres, involuntary, Autonomic |
| Intercollated Discs |
Thick fingerlike projections where gap junctions are lovated at the ends of the sarcolemma |
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