Receptors that bind acetylcholine are known as:
A) alpha.
B) beta.
C) adrenergic.
D) cholinergic.
Answer: D
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This figure shows the muscles of facial expression. What muscle does number 3 indicate?
A. Nasalis B. Orbicularis oris C. Epicranius D. Orbicularis oculi E. Platysma
The anterior pituitary can be divided into three regions:
A) neurohypophysis, infundibulum, and adenohypophysis. B) supraoptic, suprachiasmatic, and paraventricular nuclei. C) adenohypophysis, hypophyseal portal, and neurohypophysis. D) pars distalis, pars tuberalis, and pars intermedia. E) None of the answers are correct.
In the ascending limb of the nephron loop (loop of Henle), the:
A) thick segment is permeable to water but impermeable to sodium and chloride ions. B) thin segment is not permeable to sodium ions, chloride ions, or water. C) movement of water and solutes is passive. D) thick segment is impermeable to water but permeable to sodium and chloride ions.
A person sits on his/her
A. iliac fossa. B. pelvic brim. C. pubis symphysis. D. ischial tuberosity. E. obturator foramen.