Which of the following body cavities contain(s) cerebrospinal fluid?
A. Thoracic and abdominopelvic cavities
B. Anterior body cavity
C. Thoracic cavity
D. Pelvic cavity
E. Cranial cavity and vertebral canal
Answer: E
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In a laboratory experiment, adding curare, which binds to acetylcholine receptors, to the solution around a muscle decreases the size of the end-plate potential. Adding prostigmine, an acetylcholinesterase blocker, increases the size of the end-plate potential. Explain why.
What will be an ideal response?
Which of these nerves supplies muscles that adduct the thigh?
A) common fibular nerve B) femoral nerve C) obturator nerve D) sural nerve E) coccygeal plexus
During the swallowing reflex __________.
a) the epiglottis closes off the glottis b) breathing rate increases c) the esophageal sphincter closes off the esophagus d) the tongue closes off the pharynx
The condition involving the development of white patches on the skin caused by the loss of melanocytes is ________.
A. decubitus ulcer B. vitiligo C. bullae D. psoriasis E. eczema