Imagine a patient who loses lots of blood and therefore has less stretch of their aorta with each heartbeat. What reflex will result?
A. Baroreceptors increase firing, the vasomotor center increases firing, and skin blood vessels will dilate to cause a compensatory increase in flow.
B. Baroreceptors decrease firing, the cardioacceleratory center increases firing, and cardiac output will exhibit a compensatory increase.
C. Baroreceptors increase firing, the cardioinhibitory center increases firing, and the heart slows significantly to prevent further bleeding.
D. Baroreceptors decrease firing, the cardioinhibitory center and vasomotor centers increase firing, the heart slows, and
B
You might also like to view...
What chemical is secreted by motor neurons at neuromuscular junctions in skeletal muscles?
A. Acetylcholine B. Acetylcholinesterase C. Sodium D. Calcium
Angiotensin II
A. is formed from angiotensin I by the action of renin. B. acts on the collecting ducts to increase reabsorption of water. C. decreases blood pressure. D. is a potent vasodilator. E. stimulates aldosterone secretion.
The epithalamus is composed of the pituitary gland and habenular nucleus.
Answer the following statement true (T) or false (F)
The first Korotkoff sound heard when taking blood pressure with a sphygmomanometer represents the pressure of the
A. ventricular diastole. B. atrial diastole. C. ventricular systole. D. atrial systole.