Why does botox diminish frown lines?
A. It blocks the release of calcium from the sarcoplasmic reticulum.
B. It blocks the release of acetylcholine from motor neurons.
C. It blocks sodium channels in motor neurons.
D. It blocks the binding site for myosin heads.
E. It blocks acetylcholine receptors.
Answer: B
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Which of the following is the correct order of tissue from the outermost to the innermost layer in the wall of the digestive tract?
A) submucosa, serous membrane, smooth muscle, mucous membrane B) smooth muscle, serous membrane, mucous membrane, submucosa C) serous membrane, smooth muscle, submucosa, mucosa D) mucous membrane, submucosa, smooth muscle, serous membrane
Check all that occur at the cellular level as a result of aging
What will be an ideal response?
This figure shows the spinal cord and spinal nerves. What structure does number 1 indicate?
A. Posterior rootlets B. Dura mater C. Cauda equina D. Conus medullaris E. Filum terminale
Which section of the renal tubules is connected to the glomerular capsule?
a) nephron loop b) collecting duct c) distal convoluted tubule d) proximal convoluted tubule