What hormone reduces blood pressure and blood volume by inhibiting nearly all events that promote vasoconstriction and sodium ion and water retention?
A) atrial natriuretic peptide (ANP)
B) antidiuretic hormone (ADH)
C) thyroxine
D) aldosterone
A
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Identify the FALSE statement.
A) Some reflexes are genetically determined. B) Adipose tissue is controlled by autonomic efferents. C) Muscle spindles are stretch receptors. D) Proprioceptors detect limb position and movement. E) All reflexes require input from the brain.
Which of the following would be an example of chemotaxis?
A. A white blood cell can move into and out of blood vessels. B. Platelets are attracted to the rough surface of damaged blood vessels. C. Red blood cells move due to pressure gradients generated by the heart. D. A white blood cell moves toward an injury site due to the release of certain chemicals by injured cells.
That portion of the hair that extends above the surface of the skin is the
A. cuticle. B. hair bulb. C. root. D. medulla. E. shaft.
Identify characteristics of reflexes.
A. Are homeostatic
B. Produce consistent results
C. Integrated within the CNS
D. Can be influenced by higher brain centers