We lack awareness of many of our bodies' systems for maintaining homeostasis. The sensations, movements, and secretions of organs such as the heart and intestines are governed by the
A. autonomic nervous system.
B. somatic nervous system.
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Question 2) In general, nerves from the posterior division of the brachial plexus tend to innervate muscles that extend the parts of the upper limb.
Indicate whether this statement is true or false.
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Question 3) Consider a basketball player whose heart is racing during the final moments of a game. With seconds on the clock, she makes a jump shot.
Her excitement is a function of her ________ nervous system, and her movements are a function of her _______ nervous system.
A. parasympathetic, sympathetic
B. sympathetic, parasympathetic
C. somatic, sympathetic
D. sympathetic, somatic
E. somatic, parasympathetic
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Question 4) A monosynaptic response is one that does not involve an interneuron.
Indicate whether this statement is true or false.
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Question 5) If someone sustained damage to the left side of their spinal cord at the T2 level such that both the anterolateral pathway and the posterior funiculus were severed on the left side only, what sensory deficits would exist in the left and right lower limbs?
What will be an ideal response?
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Question 6) This figure shows neuron pathways and nuclei locations. What type of nuclei does number 2 indicate?
A. Somatic motor nuclei
B. Autonomic motor nuclei
C. Visceral sensory nuclei
D. Somatic sensory nuclei
E. None of the choices is correct.
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Question 7) This figure shows spinal nerve branches. What structure does number 1 indicate?
A. Anterior ramus
B. Posterior ramus
C. Rami communicantes
D. Sympathetic trunk ganglion
E. Posterior root ganglion
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Question 8) In the brain, the outer cerebral cortex consists of gray matter, but in the spinal cord, gray matter is confined to the innermost regions.
Indicate whether this statement is true or false.
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Question 9) This figure shows spinal nerve branches. What structures are indicated by number 4?
A. Anterior rami
B. Posterior rami
C. Rami communicantes
D. Sympathetic trunk ganglia
E. Posterior root ganglia
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Question 10) Postganglionic axons are
A. myelinated.
B. unmyelinated.
C. sometimes myelinated and sometimes unmyelinated.
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