Which of the following events occurs last?
A. IP3 stimulates Ca2+ release from the endoplasmic reticulum.
B. Ca2+ binds with calmodulin.
C. IP3 (inositol triphosphate) is produced.
D. Epinephrine combines with membrane-bound receptor on smooth muscle cell.
E. Calmodulin binds to the enzyme that phosphorylates myosin and cross-bridges form.
Answer: E. Calmodulin binds to the enzyme that phosphorylates myosin and cross-bridges form.
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All arteries carry oxygenated blood.
Answer the following statement true (T) or false (F)
____________________ conduction involves the spread of the action potential along every patch of membrane down the length of the axon
Fill in the blank(s) with correct word
In the renal corpuscle, the glomerular epithelium is a layer of specialized cells called:
a) tubular cells b) juxtaglomerular cells c) glomerulocytes d) macula densa cells e) podocytes
The auscultatory method of measuring blood pressure
A. relies on the insertion of a cannula into the vessel in which pressure is being measured. B. monitors the oscillations in the blood vessel during changes in pressure. C. involves an electronic transducer attached to a mercury manometer. D. relies on hearing Korotkoff sounds through a stethoscope. E. relies on hearing the sounds made by laminar flow of the blood.