Tuna and the fastest sharks (such as the mako) have __________ caudal fins
A) Homocercal
B) Holocercal
C) Heterocercal
D) Mesocercal
Fill in the blank with the correct answer.
Answer: A
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Organs that develop in the peritoneal cavity but later fuse to the posterior abdominal wall
include the ________. A) urinary bladder B) kidneys C) stomach D) pancreas E) small intestine
The hormone that is responsible for increasing the flexibility of the pelvis and causes dilation of the cervix during birth is ________.
Fill in the blank(s) with the appropriate word(s).
A diffuse axonal injury:
A) is a specific, grossly observable brain injury that can easily be diagnosed with a computer tomography scan of the head. B) involves stretching, shearing, or tearing of the extension of the neuron that conducts electrical impulses away from the cell body. C) results in severe stretching or tearing of the portion of the nerve cell that receives sensory messages from the rest of the body. D) is generally associated with better neurologic outcomes than a cerebral concussion because permanent brain damage does not occur.
Which of the following would happen if a virus infected one of the two facial nerves (cranial nerve VII)?
A. The sternocleidomastoid would be affected on one side. B. The chewing muscles would be affected. C. The muscles of facial expression would droop on one side. D. The muscles of facial expression would droop on both sides. E. The muscles controlling the tongue would not work.