Skeletal Muscle and Answer Selected Answer free essay sample

Which of the following structures is most like an exoskeleton? Answer Selected Answer: E. a suit of armor Question 3 1 out of 1 points Which of the following structures constitutes part of the axial skeleton? Answer Selected Answer: C. skull Question 4 1 out of 1 points Which of the following attaches the forelimbs to the axial skeleton in a human? Answer Selected Answer: E. shoulder girdle Question 5 1 out of 1 points The calcium that triggers muscle contraction is stored in Answer Selected Answer: D. the sarcoplasmic reticulum (also known as the smooth ER). Question 6 1 out of 1 points The contacting surfaces of a moving joint, such as your hip joint, consist of Answer Selected Answer: B. cartilage. Question 7 0 out of 1 points Functionally, the muscle fibers fundamental unit of contraction is the Answer Selected Answer: D. Z line Question 8 1 out of 1 points Which of the following statements about locomotion is true? Answer Selected Answer: E. Locomotion requires animals to overcome friction and gravity. We will write a custom essay sample on Skeletal Muscle and Answer Selected Answer or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Question 9 1 out of 1 points To repair and heal a broken bone, physicians will Answer Selected Answer: B. return the broken bone parts to their natural position and then immobilize them. Question 10 1 out of 1 points Which part of a bone contains mostly stored fat? Answer Selected Answer: A. yellow bone marrow Question 11 1 out of 1 points Osteoporosis is characterized by Answer Selected Answer: B. structural deterioration of bone tissue Question 12 1 out of 1 points The neurotransmitter found at the synapse between nerves and human skeletal muscle cells is Answer Selected Answer: E. acetylcholine. Question 13 1 out of 1 points The cell bodies and dendrites of motor neurons are located in the Answer Selected Answer: C. central nervous system Question 14 1 out of 1 points The synapses between neurons and muscle fibers are called Answer Selected Answer: B. neuromuscular junctions Question 15 0 out of 1 points An airfoil provides lift because air moving over a wing must travel Answer Selected Answer: a lesser distance than air moving under the wing, creating a lower pressure system above the wing. Question 16 0 out of 1 points Structurally, a sarcomere is Answer Selected Answer: A. an array of myofibrils Question 17 1 out of 1 points Earthworms have Answer Selected Answer: E. hydrostatic skeleton Question 18 1 out of 1 points Which of the following animals has an endoskeleton made entirely of cartilage? Answer Selected Answer: D. nurse shark Question 19 1 out of 1 points If you lay your forearm along the table, you can rotate it so that your hand changes from a palm-down to a palm-up position. This is possible because your radius and ulna join at a Answer Selected Answer: D. pivot joint Question 20 0 out of 1 points Which part of a bone contains the cells that produce blood cells? Answer Selected Answer: D. yellow bone marrow Question 21 1 out of 1 points The shoulder joint where the humerus meets the shoulder girdle is an example of Answer Selected Answer: D. a ball-and-socket joint Question 22 1 out of 1 points A major difference between movement in humans and horses is Answer Selected Answer: B. differences in degree of joint flexibility Question 23 0 out of 1 points Bone is composed of Answer Selected Answer: A. a hard composite of phosphate and sodium ions Question 24 0 out of 1 points Evolution has provided enormous diversity in the number of vertebrae among vertebrate species. Vertebrae are differentiated during embryonic development by Answer Selected Answer: A. he length of the backbone. The role of calcium in muscle contraction is to Answer Selected Answer: D. make it possible for myosin to bind to actin. Question 26 0 out of 1 points An important function of the bones in the skeleton is to Answer Selected Answer: D. provide a source of calcium. Question 27 1 out of 1 points Which of the following statements about skeletal muscle fibers is true? Answer Selected Answer: A. Each muscle fiber contains actin and myosin Question 28 1 out of 1 points Which of the following animals has an exoskeleton?