Bones: Skeletal Muscle and Answer Selected Answer

Only available on StudyMode
  • Download(s) : 44
  • Published : October 30, 2012
Open Document
Text Preview
Question 1
1 out of 1 points

A thick filament consists of
Answer
Selected Answer: D. myosin.
Question 2
1 out of 1 points

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 fiber's 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. 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. a 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. the length of the backbone.
Question 25
1 out of 1 points

The role of calcium in...
tracking img