Which of the following is a series of convulsive inhalations followed by a single prolonged exhalation where the rima glottidis closes earlier than normal after each inhalation so only a little air enters the lung with each inhalation?

Choose the statement that correctly characterizes the GI tract.

A. Body tissues are composed of substrates similar to food; thus, they would be degraded by enzymes in the GI tract if exposed to the internal environment of the GI tract. B. The harsh environment in the GI tract allows for the absorption of indigestible materials without harming body tissues. C. The two openings of the GI tract permit two-way transport of food, which maximizes absorption. D. All of the choices are correct.

During a dangerous situation, the sympathetic nervous system causes widespread vasoconstriction, raising systemic blood pressure. This is an example of the myogenic response. 

Answer the following statement true (T) or false (F)

The most important parameter in most forms of locomotion is

A) Force. B) Leverage. C) Mechanical power. D) Stroke volume.

Explain why it is important to understand chemistry and physics before studying physiology. Be sure to include some examples

What will be an ideal response?