The __________ flattens during inhalation
A- nasal cavities
B- epiglottis
C- bronchi
D- diaphragm
Answer: D- diaphragm
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The essential hormone that regulates the level of calcium in your blood is produced by the:
A) adrenals B) pituitary C) hypothalamus D) thymus E) parathyroids
Immune complex diseases are the result of widespread and continuous ________.
A. fever B. auto-antibody production C. inflammation D. All of the choices are correct.
What does the term "power stroke" refer to?
A. The cleaving of ATP into ADP and a phosphate B. The shortening of actin filaments C. The transmission of a signal from the motor neuron to the muscle fiber D. The movement of the myosin head toward the center of the sarcomere E. The maximum force generated during a contraction
Which of the following statements concerning the structure of spinal nerves is true?
A. The ventral root contains motor or efferent fibers. B. The ventral root has a prominent root ganglion. C. Rootlets from the surface of the spinal cord form the dorsal and ventral rami. D. Each spinal nerve is formed by the union of a cranial nerve and a spinal nerve. E. Spinal nerves do not have specific cutaneous distributions.