Which organs are primarily responsible for regulating the potassium ion concentration in the ECF?
A) lungs
B) kidneys
C) adrenal glands
D) lymph nodes
E) intestines
Answer: B
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The __________ structure of proteins involves interactions of amino acids that are found on different subunits
A) Primary B) Secondary C) Tertiary D) Quaternary Fill in the blank with the correct word.
At the AV node of the conduction system, the action potential is
A. rapidly advanced due to the cells being large and well connected by gap junctions. B. rapidly advanced due to the cells being small and well insulated by myelin. C. delayed due to the cells being small and having few gap junctions. D. delayed due to the cells being large and having many leakage channels.
Knee extensors, known as the quadriceps femoris, include the
A) biceps femoris, gracilis, and sartorius. B) three vastus muscles and the rectus femoris. C) popliteus, iliopsoas, and gracilis. D) gastrocnemius, tibialis, and fibularis. E) hamstrings and adductors.
Which sequence represents the abundance of pancreas cells, from lowest at left to highest at right?
a. beta. alpha, delta, F b. alpha, beta, delta, F c. beta, delta, F, alpha d. delta, alpha, beta, F e. alpha, delta, beta, F