Immediately following the arrival of the stimulus at a skeletal muscle cell there is a short period called the ________ period during which the neurotransmitter is released by exocytosis, diffuses across the synaptic cleft, and binds to its receptors
.
A) relaxation
B) refractory
C) latent
D) contraction
C
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Because it is found outside of (rather than within) cells, plasma is considered to be an ________ fluid.
Fill in the blank(s) with the appropriate word(s).
Which nerve carries parasympathetic fibers to the parotid salivary gland?
A. Trigeminal nerve (CN V) B. Facial nerve (CN VII) C. Glossopharyngeal nerve (CN IX) D. Vagus nerve (CN X) E. Oculomotor nerve (CN III)
During repolarization of a neuron:
A) potassium ions move out of the cell. B) sodium ions move into the cell. C) sodium ions move out of the cell. D) potassium ions move into the cell.
The portion of the adult brain that includes the medulla oblongata is derived from which secondary brain vesicle?
A. Mesencephalon B. Telencephalon C. Diencephalon D. Metencephalon E. Myelencephalon