If the heart receives more sympathetic stimulation than parasympathetic stimulation, the heart will

A. contract with less force but at a faster rate.
B. decrease both its rate and force of contraction.
C. decrease rate, but increase force of contraction.
D. increase its rate and force of contraction.
E. contract with greater force but at a slower rate.


Answer: D

Anatomy & Physiology

You might also like to view...

Choose the answer that best describes fibrous proteins

A) rarely exhibit secondary structure B) are usually called enzymes C) are cellular catalysts D) are very stable and insoluble in water

Anatomy & Physiology

When hemoglobin does not have oxygen bound to hemoglobin it is termed

A) carbaminohemoglobin. B) deoxyhemoglobin. C) oxyhemoglobin. D) hemolyzed. E) sickle hemoglobin.

Anatomy & Physiology

If a cell lacked centrioles, it probably would not be able to

A) move. B) produce DNA. C) divide. D) synthesize proteins. E) metabolize sugars.

Anatomy & Physiology

A transplant recipient rejects a transplanted organ because her ________ does not match that of the donor closely enough.

A. cytokine profile B. mononuclear phagocytic system C. major histocompatibility complex D. antibody response

Anatomy & Physiology