Blood Pressure Regulation

Baroreceptors located in __

• celiac trunk

• carotid sinuses

• aortic arch

• vena cava

The long-term regulation of blood pressure involves changes to the following

• Vessel diameter

• Blood volume

• Contractility

• Heart rate

Increased activity to the vagus nerve will cause the heart rate to

• increase

• decrease

Increase sympathetic activity will cause

• Increase heart rate

• Reduce heart rate

• Reduce contractility

• Increase contractility

In hypotension, this cells will release renin

• Cortical cells

• Angiotensinogen cells

• Aldosterone cells

• Juxtaglomerular cells

Which one of these is the effect of angiotensin II ?

• Vasoconstriction of afferent artery.

• Vasodilation of efferent artery.

• Vasoconstriction of efferent artery.

• Vasoconstriction of both efferent and afferent.