Match the answers to the questions.
1. The neural pathway from the spinal cord to the target tissue has two neurons, the reganglionic neuron and the postganglionic neuron.
2. Most preganglionic neurons originate in the thoracic and lumbar regions of the spinal cord.
3. The cell bodies of preganglionic neurons are found either in the brain stem or in the
sacral region of the spinal cord.
4. The cell bodies of preganglionic neurons are found either in the brain stem or in the
sacral region of the spinal cord.
5. The neurotransmitter acetylcholine is released by neurons at the neuroeffector synapse.
1. C. true for both divisions
2. A. true only for the sympathetic division
3. B. true only for the parasympathetic division
4. C. true for both divisions
5. B. true only for the parasympathetic division
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Which part of the circulatory system holds the largest amount of blood?
A. Pulmonary arteries B. Pulmonary veins C. Systemic arteries D. Systemic veins
The secretion of ________ is controlled by a ________ mechanism.
A. oxytocin; positive-feedback B. antidiuretic hormone; positive-feedback C. antidiuretic hormone; negative-feedback D. oxytocin; negative-feedback
In a resting neuron, concentrations of ________ are higher in the ECF than that in the cytosol, whereas ________ have the opposite distribution.
A. potassium ions; sodium and chloride ions B. sodium and potassium ions; chloride ions C. sodium and chloride ions; potassium ions D. chloride and potassium ions; sodium ions
Testosterone is produced by the ________, under influence of the hormone ________.
A. interstitial cells; LH B. spermatogonia; FSH C. spermatogonia; LH D. interstitial cells; testosterone