Define tonic control and give a physiological example.
What will be an ideal response?
Tonic control regulates physiological parameters in an up-down fashion. An example is the neural regulation of blood vessel diameter
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The thoracic duct drains lymph into the ________.
A. left subclavian artery B. left subclavian vein C. right subclavian vein D. right internal jugular vein E. left brachiocephalic vein
In the vertebrate brain and spinal cord, white matter consists of __________ and gray matter consists of __________
A) Axons and myelin; cell bodies and dendrites B) Sensory neurons; motor neurons C) Axons and myelin; ganglia D) The dorsal horn; the ventral horn Fill in the blank with correct words.
All of the following are true of the differences between arteries and veins except
A. veins have one-way valves, but arteries do not. B. veins collapse when empty, but arteries remain rounded. C. veins have a thicker tunica externa than arteries. D. arteries have a thicker tunica media than veins. E. All of these are true of the differences between arteries and veins.
The pectineus muscle is located ______ and performs _____ of the hip joint.
Fill in the blank(s) with the appropriate word(s).