Which of the following would be a normal response of the cardiovascular system to a decreased frequency of action potentials arising from the baroreceptors?
a) Increased systemic vascular resistance
b) Increased parasympathetic stimulation
c) Decreased heart rate
d) Decreased stroke volume
e) Decreased cardiac output
a
You might also like to view...
The pulmonary circuit
A. sends oxygen-poor blood to the tissues. B. brings oxygen-rich blood from the tissues. C. sends oxygen-poor blood to the lungs. D. sends oxygen-poor blood to the heart.
Which of the following organs is not part of the lower respiratory system?
A) pharynx B) trachea C) larynx D) bronchi E) alveoli
The citric acid cycle involves
A. a multienzyme complex within the cytosol. B. several enzymes within the matrix of the mitochondrion. C. a multienzyme complex within the outer compartment of the mitochondrion. D. several enzymes within the cytosol and the outer membrane of the mitochondrion.
Eyebrow hairs are always shorter than hairs on your head because ________
A) eyebrow follicles are only active for a few months B) hormones in the eyebrow follicle switch the growth off after it has reached a predetermined length C) they grow much slower D) the vascular supply of the eyebrow follicle is one-tenth that of the head hair follicle