During a spinal tap, cerebrospinal fluid is obtained from which of the following locations?
A. dural sinus
B. epidural space
C. subarachnoid space
D. subdural space
E. sagittal sinus
C
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Cardiac pacemaker cells have an unstable resting membrane potential as the result of an unusual __________ current
A) Magnesium B) Sodium C) Chloride D) Calcium Fill in the blank with the correct answer.
____________ cells, located with the crypts of Lieberkuhn, produce _________, which is able to lyse bacteria, and _____________, which are small proteins with antimicrobial power
Fill in the blank(s) with correct word
The prominent bulge just posterior and inferior to the external auditory meatus is the
A) mastoid process. B) styloid process. C) occipital condyle. D) condyloid process. E) temporal process.
Receptors that respond to norepinephrine may be beta-__________.
Fill in the blank(s) with the appropriate word(s).