Asked by Andrew Vahil on Jun 11, 2024
Verified
The vasomotor center
A) regulates the expansion of elastic arteries.
B) controls the contraction and relaxation of precapillary sphincter muscles.
C) increases the strength of heart muscle contraction under low O2 conditions.
D) sends low frequency action potentials to blood vessels to maintain tone.
Vasomotor Center
A region in the medulla oblongata of the brain that regulates blood pressure by controlling the dilation and constriction of blood vessels.
Elastic Arteries
Large arteries that contain elastic tissue in their walls, enabling them to stretch and recoil for blood flow regulation.
Precapillary Sphincter
A band of smooth muscle that regulates blood flow into the capillaries, largely controlling the microcirculation.
- Comprehend the effects of the sympathetic and parasympathetic nervous systems on cardiovascular functions.
Verified Answer
Learning Objectives
- Comprehend the effects of the sympathetic and parasympathetic nervous systems on cardiovascular functions.
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