Pendrin is an anion transporter important in the production of
A) calcitonin.
B) thyroid hormone.
C) parathyroid hormone.
D) TSH.
E) TRH.
B) thyroid hormone.
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The scalenes have their origin on the
A) transverse and costal processes of cervical vertebrae. B) inferior border of the previous rib. C) superior border of the next rib. D) cartilages of the ribs. E) thoracodorsal fascia and iliac crest.
Spastic paralysis suggests involvement of the ________
A) spinal nerve roots B) lower motor neurons C) neuromuscular junction D) upper motor neurons
Answer the following statements true (T) or false (F)
1. If nonessential amino acids are missing from the diet, essential amino acids can be substituted in the protein. 2. The end products of catabolism are larger and more complex than the starting substances. 3. The two blood clotting proteins, fibrinogen and albumin, are both made in the liver. 4. The liver assists in mechanical digestion, but not in chemical digestion. 5. Thermoregulation is the function of the hypothalamus.
A heart valve opens and closes due to
a. being pulled by the heart muscle b. pressure differences on the valve's two sides c. Na+ and K+ fluxes during ventricular depolarization d. turbulent flow in the atria and ventricles e. none of the above