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KINE 2385: A&P for Kinesiology TEST #2 MULTIPLE CHOICE. Choose the one alternative that 6. Cells that store fat are called best completes the statement or answers the adipocytes. question. fibroblasts. 1. Each of the following is a primary tissue type melanocytes. except one. Identify the exception. macrophages. muscle tissue mast cells. bone tissue connective tissue 7. Loose connective tissue functions in epithelial tissue filling spaces between organs. nervous tissue supporting epithelia and anchoring blood vessels. 2. Collections of specialized cells and cell products storing starch and lipids. that perform a specific function are: A and B only. organs. none of the above. tissues. organ systems. 8. The cell that accounts for almost half the volume cellular aggregates. of blood is the cellular strata. leukocyte. platelet. 3. Which of the following is a type of secretion in phagocyte. which some cytoplasm is lost with the product? red blood cell. merocrine none of the above holocrine apocrine 9. Chondrocytes are to cartilage as osteocytes are mucous to none of the above bone. blood. 4. Functions of connective tissue include epithelium. transporting fluids and dissolved fat. materials. nervous tissue. establishing a structural framework for the body. 10. The most common type of cartilage is providing protection for delicate organs. elastic. storing energy reserves. osseous. all of the above. fibrocartilage. hyaline. 5. The fibrous components of connective tissue are ligamentous. produced by adipocytes. 11. Tissue that is specialized for contraction is fibroblasts. cartilage. macrophages. connective tissue. melanocytes. nerve tissue. mast cells. muscle. epithelium. 12. The muscle tissue which shows no striations is multinucleated muscle. skeletal muscle. smooth muscle. cardiac muscle. voluntary muscle. 13. The muscle tissue that is generally multinucleate is voluntary muscle. cardiac muscle. smooth muscle. multinucleate muscle. skeletal muscle. 14. Tissue that is specialized for the conduction of electrical impulses is called epithelial tissue. nervous tissue. osseous tissue. muscle tissue. areolar tissue. 15. The neuron is made up of all of the following EXCEPT dendrites. an axon. nerve fibers. a soma. a synapse. 16. Perspiration is an example of what type of secretion? endocrine holocrine serous apocrine merocrine 17. Cells that remove damaged cells or pathogens from connective tissue are adipocytes. mast cells. fibroblasts. macrophages. melanocytes. 18. Why does damaged cartilage heal slowly? Damaged collagen cannot be quickly replaced, thus slowing the healing process. Chondrocytes cannot be replaced if killed, and other cell types must take their place. Cartilage is avascular so nutrients and other molecules must diffuse to the site of injury. Damaged cartilage becomes calcified, thus blocking the movement of materials required for healing. Chondrocytes divide more slowly than other cell types, delaying the healing process. 19. Cardiac muscle differs from the other two types of muscle tissue in that cardiac muscle contains actin and myosin filaments. has visible striations. forms muscle fibers. has only one nucleus per cell. has the ability to contract independent of neural stimulation. 20. Types of muscle tissue include bone, elastic connective, and simple columnar. simple squamous, adipose, and smooth. skeletal, smooth, and fibrous. skeletal, smooth, and cardiac. fibrous connective, stratified squamous, and skeletal. 21. Examples of fibrous connective tissue include tendons. salivary glands. ligaments. respiratory passages. A and D only. 22. The functions of connective tissues include support. storage of adipose. protection. all of the above. none of the above. 23. Which lacks a direct blood supply? muscle cartilage skin bone nerves 30. The lining of the marrow cavity is called the periosteum. perimysium. myometrium. epimysium. endosteum. 24. Another term for skeletal muscle tissue is striated voluntary. cardiac. smooth voluntary. involuntary. smooth. 31. The following are major steps in the process of endochondral ossification 1. Blood vessels invade the perichondrium. 2. Osteoclasts create a marrow cavity. 3. Chondrocytes enlarge and calcify. 4. Osteoblasts replace calcified cartilage with spongy bone. 5. The perichondrium is converted into periosteum, and the inner layer produces bone. The correct order for these events is 3, 1, 5, 4, 2 1, 5, 3, 4, 2 2, 3, 1, 5, 4 1, 3, 5, 4, 2 3, 1, 4, 5, 2 25. Functions of the skeletal system include support. protection. blood cell production. storage. all of the above. 26. Mature bone cells are termed osteocytes. osteoclasts. osteoblasts. osteons. chondrocytes. 27. Cells that synthesize the organic components of the bone matrix are termed osteoblasts. osteocytes. osteoclasts. stem cells. chondrocytes. 28. Large, multinucleated cells that can dissolve the bony matrix are termed osteocytes. osteoblasts. osteoclasts. stem cells. chondrocytes. 29. The shaft of a long bone is called the osteon. epiphyseal plate. epiphysis. diaphysis. lamella. 32. Elevated levels of calcium ion in the blood stimulate the secretion of the hormone growth hormone. parathyroid hormone. testosterone. thyroid hormone. calcitonin. 33. The hormone calcitonin functions to increase the rate of bone deposition. stimulate osteoclast activity. decrease the rate of calcium excretion. decrease the level of calcium ion in the blood. do all of the above. 34. Vitamin D is necessary for increasing osteoclast activity. reducing osteoblast activity. collagen formation. absorption and transport of calcium and phosphate ions. the formation of the organic framework of bone. 35. A lack of exercise would increase the length of a bone. cause bones to store more calcium. have no effect on a bone. cause bones to become thicker. result in thin, brittle bones. 36. The normal loss of bone that occurs with aging is called osteopenia. osteoporosis. osteoinflammation. bone cancer. osteogenesis. 40. Which of the following statements is INCORRECT? The contractions of skeletal muscles pull on tendons and move elements of the skeleton Skeletal muscles support the weight of some internal organs Skeletal muscle contractions help maintain body temperature Skeletal muscles are responsible for the pumping action of the heart Skeletal muscles are responsible for guarding the openings of the digestive and urinary tracts 37. Types of tissue found in bones include all of the following EXCEPT blood. fibrous connective tissue. muscle tissue. cartilage. nerve tissue. 41. The dense layer of collagen fibers that surround an entire skeletal muscle is the epimysium. tendon. endomysium. fascicle. perimysium. 38. Inadequate ossification as a result of the aging process is termed: osteogenesis. osteopenia. osteoporosis. rickets. osteomalacia. 42. Nerves and blood vessels that service the muscle fibers are located in the connective tissues of the myofibrils. endomysium. sarcomere. perimysium. sarcolemma. 39. Which of the following is a(are) function(s) of skeletal muscle? maintain posture produce movement maintain body temperature A and B only all of the above 43. The delicate connective tissue that surrounds the skeletal muscle fibers and ties adjacent muscle fibers together is the epimysium. periosteum. sarcolemma. endomysium. perimysium. 44. The bundle of collagen fibers at the end of a skeletal muscle that attaches the muscle to bone is called a(n) fascicle. epimysium. myofibril. tendon. ligament. 45. Skeletal muscle fibers differ from "typical cells" in that these muscle fibers lack mitochondria. are very small. lack a cell membrane. have many nuclei. all of the above. 51. The area of the sarcomere that contains only thin filaments is the Z line. A band. H band. M line. I band. 46. The cell membrane of skeletal muscle is called the sarcoplasm. sarcolemma. sarcomere. sarcoplasmic reticulum. sarcosome. 52. The sarcoplasmic reticulum stores oxygen. glucose. calcium ions. ATP. glycogen. 47. The cytoplasm of a skeletal muscle fiber is called the sarcoplasmic reticulum. sarcosome. sarcomere. sarcoplasm. sarcolemma. 48. The functional unit of skeletal muscle is the myofilament. sarcolemma. sarcomere. sarcoplasmic reticulum. myofibril. 49. Thin filaments at either end of the sarcomere are attached to the M line. A band. I band. Z line. H band. 50. The area of the sarcomere containing the thick filaments is the M line. Z line. I band. H band. A band. 53. Active sites on actin become available for binding when myosin binds to troponin. calcium binds to tropomyosin. actin binds to troponin. calcium binds to troponin. troponin binds to tropomyosin. 54. In response to action potentials arriving from the transverse tubules, the sarcoplasmic reticulum releases calcium ions. sodium ions. potassium ions. acetylcholine. all of the above. 55. When a calcium ion binds to troponin, tropomyosin moves out of the groove between the actin molecules. muscle relaxation occurs. active sites on the myosin are exposed. actin heads will bind to myosin. all of the above occur. 56. The type of contraction represented by a single stimulus-contraction-relaxation sequence is tetany. a twitch. a spasm. recovery. recruitment. 57. The smooth but steady increase in muscle tension produced by increasing the number of active motor units is called tetany. a twitch. recovery. relaxation. recruitment. 58. The type of contraction in which the muscle fibers produce increased tension, but do NOT shorten is called recruitment. isotonic. a twitch. isometric. tetany. 59. Fast fibers have high resistance to fatigue. have many mitochondria. have a high concentration of myoglobin. contract quickly. have or do all of the above. 60. The type of muscle fiber that is best adapted for endurance is the anaerobic fiber. slow fiber. high density fiber. intermediate fiber. fast fiber. 61. Muscles comprising the quadriceps group include the peroneus, gastrocnemius, vastus intermedius, and rectus femoris. rectus femoris, vastus intermedius, vastus lateralis, and vastus medialis. rectus femoris, tibialis anterior, soleus, and adductor longus. semitendinosis, biceps femoris, rectus femoris, and vastus medialis. iliopsoas, gracilis, adductor magnus, biceps femoris, and gracilis. SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 62. The protein __________ works with myosin and is responsible for muscle contraction and relaxation. 63. A muscle __________ contains a sarcolemma, sarcoplasm, filaments, and myofibrils. 64. A sheath of connective tissue surrounding a bundle of striated muscle fibers is called __________. 65. A sheath surrounding each skeletal muscle fiber is called __________. 66. Match the muscle in the first column with its action in the second column. _____ 1. deltoid A. flexes and abducts palm _____ 2. pectoralis major B. abducts arm _____ 3. biceps brachii C. extends forearm _____ 4. triceps brachii D. flexes, adducts, and medially rotates humerus _____ 5. flexor carpi radialis E. flexes and supinates forearm