You can feel when your hair is being touched because ________.

A. hair follicles have neurons associated with them
B. hairs are made of living neurons
C. the arrector pili muscle detects movement of the hair
D. hairs are made of living epidermal tissue


Answer: A

Anatomy & Physiology

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During sun exposure the skin is responsible for the synthesis of Vitamin ________________________________________, which is essential in calcium control

Fill in the blank(s) with correct word

Anatomy & Physiology

The type of neuronal circuit that ensures that we continue to breathe while asleep is a ________ circuit.

A. converging B. parallel-after-discharge C. diverging D. reverberating E. None of the choices is correct.

Anatomy & Physiology

Contraction of the papillary muscles would

A. prevent the AV valves from protruding into the atria. B. open the semilunar valves. C. eject blood from the ventricles. D. close the semilunar valves. E. cause the atria to eject their contents into the ventricles.

Anatomy & Physiology

How many nuclei do most body cells contain?

A) 1 B) 2 C) 3 D) 4 E) over 10

Anatomy & Physiology