In the neurons that innervate skeletal muscles, the cytoplasm of the synaptic terminal contains mitochondria and vesicles filled with molecules of the neurotransmitter

A) Epinephrine.
B) Norepinephrine.
C) Acetylcholine.
D) Antidiuretic hormone.
E) all of the above


C) Acetylcholine.

Anatomy & Physiology

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Which of the following is not a type of tissue?

a. muscle b. nervous c. embryonic d. epithelial

Anatomy & Physiology

To stimulate muscle contraction, acetylcholine is released from the ________ into the synaptic cleft.

A. sarcoplasmic reticulum B. synaptic vesicles C. terminal cisterns D. sarcolemma E. junctional folds

Anatomy & Physiology

What does the countercurrent mechanism accomplish in the nephron loop?

A) production of very dilute urine B) creation of a steep concentration gradient for continued water reabsorption C) secretion of water and electrolytes into the filtrate D) constriction of the arterioles to increase blood pressure

Anatomy & Physiology

The medulla of the thymus contains

A) B cells. B) granulocytes. C) macrophages. D) mature T cells. E) None of the answers are correct.

Anatomy & Physiology