The knee jerk reflex (when the quadriceps muscles contract after the patellar tendon is tapped) is directed by the

A. autonomic nervous system.
B. somatic nervous system.


Answer: B

Anatomy & Physiology

You might also like to view...

A highly sensitive tactile receptor composed of dendritic processes of a single myelinated fiber that makes contact with specialized cells of the stratum basale is a

A) lamellar corpuscle. B) tactile (Meissner) corpuscle. C) Bulbous corpuscle. D) tactile (Merkel) disc. E) root hair plexus.

Anatomy & Physiology

The external environment is found outside cells but inside the body

Indicate whether the statement is true or false

Anatomy & Physiology

The volume of the antrum is largest in a ________ follicle.

A. secondary B. primordial C. polar D. mature E. primary

Anatomy & Physiology

The vesicles that contain melanin are

A. cyanosis. B. carotene. C. dermatitis. D. albinism. E. melanosomes.

Anatomy & Physiology