MUSCULOSKELETAL SYSTEM (PART 2)

1. - Perimysium to form a bundle of fibers called as _________.
3. - A prolonged contraction of a muscle caused by rapidly repeated stimuli.
5. - The specific neurotransmitter that stimulates skeletal muscle fibers.
10. - Each of the axon terminals forms junctions with the sarcolemma of a different muscle cell. The junction is called __________ junctions.
15. - Many fascicles are bound together by an even tougher “overcoat” of connective tissue called an ___________ , covers the entire muscle.
17. - A flat sheet or ribbon of tendon like material that anchors a muscle or connects it with the part that the muscle moves is called ___________.
18. - ___________ defines as each muscle fiber is enclosed in a delicate connective tissue sheath.
20. - Which chemical – ATP or Ca2+ - triggers sliding of the muscle filaments?
25. - A fan-shaped muscle overlying the temporal bone, inserts into the mandible and act as a synergist of masseter in closing jaw.
27. - A tough band of fibrous connective tissue that connects muscle to bone and is capable of withstanding tension is called as _________.
28. - What is it called for chains of tiny contractile units?
29. - Myosin filaments are attached to the Z discs by _____ , elastic filaments that run through the core of the thick filament.
30. - Thick filaments are made mostly bundled of ________ .

2. - Which muscle cell has single, very long, cylindrical, multinucleate cells with very striations?
4. - The muscle that closes the jaw by elevating the mandible.
6. - __________ contain synaptic vesicles filled with a chemical.
7. - Thin filaments are composed of the contractile protein called ______ .
8. - ___________ defines as several sheathed muscle fibers are then wrapped by a coarser fibrous membrane.
9. - Mr Henry is trying with all his might to pull a tree stump out of a ground. It does not budge. What type of contraction are his muscles performing?
11. Oris - Circular muscle of the lips
12. reticulum - A specialized smooth endoplasmic reticulum.
13. impulses - Skeletal muscle fibers must be stimulated by _________to contract.
14. - Which muscle cell has single, fusiform, uninucleate, no striations?
16. - Which muscle cell has branching chains of cells, uninucleate, striations, intercalated discs?
19. - What is the name for many oval nuclei that can be seen just beneath the plasma membrane?
21. bridges - Myosin heads form ________ when they link the thick and thin filaments together when contraction.
22. - Movement of a limb toward body midline.
23. - What type of muscle contraction when bending knee, lifting weights and smiling?
24. - A long threadlike extension of the neuron.
26. - Movement of a limb away from midline of body.