Briefly describe the structural organization of the ANS with reference to the origins of the divisions.
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The sympathetic division is also called the thoracolumbar division because it includes pathways beginning at
spinal cord levels T1—L2. The parasympathetic division is also called the craniosacral division because it includes
pathways that begin in the brain stem (located in the cranium and sacral regions of the spinal cord at levels S2—S4.
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During accommodation, the ciliary muscle ________ causing the ciliary body to move ________ and apply ________ tension on the lens
A) relaxes; toward the lens; more B) contracts; toward the lens; less C) contracts; away from the lens; more D) relaxes; inward; less E) contracts; away from the lens; less
. Changes in blood osmolarity that turn off the thirst center also increase the release of ADH from the pituitary gland
Indicate whether this statement is true or false.
Which of the following muscles is the most active when doing push-ups?
A. Pectoralis minor B. Latissimus dorsi C. Trapezius D. Biceps brachii E. Pectoralis major
Ruby is 77 years old and can no longer control her urination. What changed in the reflex pathway that used to control her urination?
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