__________ is a disease in which bones lose mass, become porous, and are prone to fractures.
Fill in the blank(s) with the appropriate word(s).
Osteoporosis
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The mitral valve:
A) is located between the right atrium and ventricle. B) has cusps attached to pectinate muscles. C) has three cusps. D) is associated with a condition (mitral valve prolapse) in which blood regurgitates into the left atrium when the left ventricle contracts. E) is located posterior to the sternum at the level of the 2nd costal cartilage.
Sympathetic nerves may leave the spinal cord at which vertebra?
A) second cervical B) third lumbar C) first coccyx D) first thoracic
Which of the following would happen if a virus infected one of the two facial nerves (cranial nerve VII)?
A. The chewing muscles would be affected. B. The muscles of facial expression would droop on both sides. C. The sternocleidomastoid would be affected on one side. D. The muscles of facial expression would droop on one side. E. The muscles controlling the tongue would not work.
The opening connecting the uterus to the cervical canal is the
A) uterine lumen. B) internal os. C) ampulla. D) isthmus. E) external os.