Physiology · Cardiovascular System · Easy
Vasoconstriction
Meaning: The narrowing of blood vessels caused by contraction of the smooth muscle in their walls.
In practice: Cold exposure causes vasoconstriction in the skin to conserve heat.
Quick check
Two questions on related physiology words.
Which word means: A sensory receptor that detects changes in temperature.
Answer: Thermoreceptor
Which word means: A brush border enzyme in the small intestine that splits milk sugar into glucose and galactose.
Answer: Lactase
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