Which of the following list the three meninges in the correct order from the most superficial layer to the deepest layer?
A. Pia mater, dura mater, arachnoid mater
B. Dura mater, arachnoid mater, pia mater
C. Pia mater, arachnoid mater, dura mater
D. Dura mater, pia mater, arachnoid mater
Answer: B
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The mechanism that ensures that the volume of blood discharged from the heart is equal to the volume entering its chambers is described by ________ law of the heart.
A. Frank-Starling's B. Boyle's C. Dalton's D. Newton's
Pinocytosis is a type of __________.
a) endocytosis b) facilitated diffusion c) receptor-mediated exocytosis d) exocytosis
Vagal tone remains intact following a spine injury because:
A) the vagus nerve originates outside the medulla and regulates the heart via the carotid arteries. B) parasympathetic nerve fibers are largely under the control of the involuntary nervous system. C) the nerve fibers of the parasympathetic nervous system do not originate from the brainstem or spinal cord. D) the thoracolumbar system provides parasympathetic stimulation to the periphery via alpha and beta receptors.
Which of these descriptions best matches the term gastrin?
A) where pancreatic juice and bile enter duodenum B) carries absorbed sugars and amino acids C) stimulates pancreas to secrete bicarbonate-rich fluid D) causes gall bladder to contract E) stimulates gastric secretion