Jeremy Is Sitting Quietly When the Voluntary Muscles in His

question 94

Multiple Choice

Jeremy is sitting quietly when the voluntary muscles in his left leg begin to twitch.Which neurotransmitter is likely being released

• A) serotonin 
• B) norepinephrine 
• C) acetylcholine 
• D) GABA

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Definitions:

Adenohypophysis

Portion of the hypophysis derived from the oral ectoderm; also called anterior pituitary.

Parathyroid Glands

The parathyroid glands are small endocrine glands in the neck that produce parathyroid hormone, which regulates calcium levels in the blood.

Somitomeres

Early segmented structures in embryonic development that give rise to somites, precursors to skeletal muscle, vertebrae, and dermis.

Neural Crest Cells

Embryonic cells originating at the border of the neural tube that migrate and differentiate into a diverse range of cell types, including some types of neurons, glial cells, and melanocytes.