Across
- 1. long ribbonlike organelles that fill the cytoplasm
- 3. mover muscles that initiate the source of movement during physical action
- 6. contractil protein found in the skeletal muscle with the myosin
- 7. no relaxation at all between stimuli, but rather a smooth sustained contraction
- 10. form of respiration using electron acceptors other than oxygen
- 13. endogenous chemicals that enable neurotransmission
- 14. contraction in which the muscle fires but there is no movement at a joint
- 15. flexion movement that decreases the angle between the sole of the foot and the back of the leg
- 17. specialized type of smooth ER that regulates the calcium concentration in the cytoplasm of striated muscle cells
- 20. attachment site of the muscle, does not move during contraction
- 22. process of producing cellular energy involving oxygen
- 23. tiny opening between neurons
- 24. filaments of myofibril, constructed from proteins, principally myosin or actin
- 26. distal terminations of the branches of an axon
- 27. midline interruption, darker area called Z disc, striation of myofibril
- 28. use of creating phosphate with adp to create creatine and atp.
- 30. motor neuron and skeletal muscle fibers innervated by that motor neuron's axonal terminals
- 32. motion that pulls a structure or a part towards the midline of a limb
- 33. sheetlike, formed by epimysia,that attach muscles to bones
- 37. motion that pulls a structure or a part away from the midline of the body
- 38. 4 of them, illustrate how the filaments slide
- 41. complex of 3 regulatory proteins that is integral to the muscle contraction in the skeletal and cardiac muscle
- 42. when the globular head of a myosin molecule is attached to an actin filament
- 43. are present in the skeletal and cardiac muscle
- 44. occurs when a muscle contracts with different degrees of force based on certain circumstances
- 48. posphorylated creatine molecule that serves as a rapidly mobilizable reserve of high energy phosphates in skeletal muscle and brain
- 49. muscle cells of smooth and skeletal muscle
- 52. attachment site of muscle that move during contraction
- 58. activities that increase your breathing and heart rate such as walking, jogging
- 59. perfor, or help perform, the same set of joint motion as the agonists
- 60. lighter central area found in the A band
- 61. decline in ability of a muscle to generate force. Result of a vigorous exercise
- 62. coarser fibrous membrane that enclose several sheathed muscle fibers
- 65. lighter central area called H zone, striation of myofibril
- 66. tough overcoat of connective tissue that bound together many fascicles and covers the entire muscle
- 69. muscles with the same origin or insertion
- 70. bundle of fibers formed by perimysium
- 71. muscles that oppose the primer mover by slowing it down
- 72. two-stranded alpha-helical coiled coil protein found in cytoskeletons
- 73. movement that tilt the sole of the foot towards the midline of the body
Down
- 2. contraction in which tension remains unchanged and themuscle's lenght changes
- 4. Contractil protein found in the skeletal muscle with the actin
- 5. caused when different ions cross the neuron membrane
- 8. organic chemical that functions in the brain and body as neurotransmitter
- 9. chemical synapse formed by the contact between a motor neuron and a muscle fiber
- 11. movement that involves grasping of the thumb and fingers
- 12. produced by muscle tissue during exercise,when oxygen supply is limited and cause pain
- 16. muscle that has a fleshy belly,tapering at either extremity
- 18. Center of H zone, contains tiny proteins rods that hold adjacent thick filaments together
- 19. any muscle having the long fibers arranged parallel to each other
- 21. same relaxation between the stimuli
- 25. movement that decreases the angle between two body parts
- 29. strenght training in which the joint angle and muscle lenght do not change during contraction
- 31. occurs when the forearm/palm are rotated outwards. Sole of the foot rotated inwards
- 34. tendon ruins through the lenght of the muscle
- 35. basic unit of striated muscle tissue
- 36. continuous and passive partial contraction of the muscles, or the muscle's resistance to passive stretch during resting state
- 39. no striations, involuntary, walls of hollow visceral organs; spindle-shaped cells, single nucleus
- 40. found only in the heart,involuntary, striated, single nucleus
- 45. movement that tilt the sole of the foot away from the midline of the body
- 46. darker area found in the I band
- 47. strong, cordlike, formed by epimysia that attach muscles to bones
- 50. straightening movement that increases the angle between body parts
- 51. delicate connective tissue sheath that enclose muscle's fibers
- 53. waste away, result of degeneration of cells, or become vestigial during evolution
- 54. where the toes are brought closes to the shin. Decreases the angle between the dorsum of the foot and the leg
- 55. conical movement of a body part, such as a ball and socket joint or the eye
- 56. temporary oxygen shortage in cells resulting from strenuous exercise
- 57. muscle layer encircling the body between the epidermis and longitudinal muscle layer
- 63. hand/upper arm turned inwards. Sole turned outwards
- 64. internal or external, referring to a rotation towards or away from the center of the body
- 67. muscle that stabilizes the origin of the agonist and the joint that origin spans to help the agonist's function
- 68. soft and hanging loosely or limply
- 71. long, slender projection of a neuron, that conducts electrical impulses away