A motor neuron is an example of a type of
A) Afferent neuron.
B) Efferent neuron.
C) Interneuron.
D) Sensory neuron.
Answer: B
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All ANS preganglionic axons release ________ as their neurotransmitter.
Fill in the blank(s) with the appropriate word(s).
Which of the following endocrine glands is composed of 2 different regions, one consisting of glandular epithelial tissue, and the other consisting of nervous tissue?
A. The thymus gland B. The thyroid gland C. The pituitary gland D. The parathyroid gland E. The pineal gland
What happens at the sodium-potassium exchange pump?
A) The sodium-potassium exchange pump maintains the resting membrane potential of the cell by ejecting 3 sodium ions for every 2 potassium ions entering the cell. B) The sodium-potassium exchange pump maintains the resting membrane potential of the cell by ejecting 2 sodium ions for every 3 potassium ions entering the cell. C) The sodium-potassium exchange pump maintains the resting membrane potential of the cell by ejecting 3 potassium ions for every 2 sodium ions entering the cell. D) The sodium-potassium exchange pump maintains the resting membrane potential of the cell by ejecting 2 potassium ions for every 3 sodium ions entering the cell. E) The sodium-potassium exchange pump maintains the resting membrane potential of the cell by ejecting 1 sodium ions for every 6 potassium ions entering the cell.
The medial concavity of the kidney is called the ________, which admits the renal nerves, blood vessels, lymphatic vessels, and ureter.
A. medulla B. cortex C. corpuscle D. hilum E. capsule