How do parasympathetic neural signals affect the working of the heart?
A. Reduce both heart rate & cardiac output
B. Heart rate is increased without affecting cardiac output
C. Both the heart rate & cardiac output increase
D. Heart rate decreases but cardiac output increases
Select your answer:
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Vascular Surgery › ViewWhat is the purpose of a shunt during carotid endarterectomy?
A. If the blood flow from one artery is occluded and collateral circulation is not sufficient, the patient will suffer cerebral ischemia. A shunt alleviates the concerns for insufficient blood flow as it allows blood to bypass the surgical site to the brain while the operation proceeds.
B. To numb the surgical site
C. To reduce blood pressure
D. To remove excess blood
Tissues › View
Which of the following is NOT true about epithelial tissue?
A. it forms glandular tissue
B. it has a good blood supply
C. one side rests on a basement membrane
D. it forms continuous cellular sheets