Chapter 7 and 8 Review Questions

The internal intercostals are engaged during

• quiet inspiration

• forced inspiration

• quiet expiration

• forced expiration

Which of these factors is most critical in determining the rate of pulmonary diffusion?

• blood pH

• gas partial pressure

• blood temperature

• plasma solubility of oxygen

In order for inspiration to occur, pressure outside of the body (atmospheric pressure) must be less than pressure inside the body (intrapulmonic pressure)

• True

• False

In general, the stimulation of the sympathetic nervous system causes __________ blood vessels.

• vasodilation of

• vasoconstriction of

• no effect on

. _____________ are located in the aortic arch and carotid arteries and are sensitive to changes in blood pressure.

• baroreceptors

• chemoreceptors

• osmoreceptors

• mechanoreceptors

Which of the following does not cause vasodilation?

• nitric oxide

• increased local blood pressure

• EDHF

• H⁺ accumulation

Secretion of nitric oxide is an example of

• metabolic control of blood flow

• endothelial control of blood flow

• myogenic control of blood flow

• neural control of blood flow