Sympathetic stimulation to the pacemaker cells ________ heart rate by ________ ion flow through ________ and ________ channels.
Fill in the blank(s) with the appropriate word(s).
variable: generally 150+ msec, short: 1-2 msec
154) increases,
Anatomy & Physiology
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A hematocrit provides information on
A) blood type. B) clotting factors. C) formed elements abundance. D) plasma composition. E) sedimentation rate.
Anatomy & Physiology
The enzyme ________ catalyzes the formation of H2CO3 from CO2 and water.
A. renin B. nitric oxide synthase C. carbonic anhydrase D. lactate dehydrogenase
Anatomy & Physiology
A fracture of the ethmoid bone could result in damage to which cranial nerve?
A) vagus B) glossopharyngeal C) accessory D) olfactory
Anatomy & Physiology
Secondary brain injuries include all of the following, EXCEPT:
A) axonal injury. B) cerebral edema. C) cerebral ischemia. D) intracranial hemorrhage.
Anatomy & Physiology