Which is TRUE regarding the structure and synthesis of hormones?
A. Thyroid hormones are catecholamines.
B. Vasopressin is synthesized in the posterior pituitary.
C. The hormones of the adrenal cortex have the same structure as the neurotransmitters of adrenergic neurons.
D. Steroid hormones are synthesized from cholesterol.
E. Most peptide hormones require binding proteins for transport in the blood.
Answer: D
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A. insufficiency of a semilunar valve or stenosis of an AV valve. B. AV nodal conduction block. C. insufficiency of an AV valve or stenosis of a semilunar valve. D. heart failure. E. a myocardial infarction.
Which of the following can only be found in the female reproductive system?
a. zygote b. gametes c. Gonads d. both A and B are only found in the female reproductive system
Why is the temporomandibular joint considered to be a second-class lever?
A. It has a mechanical advantage of 1.0 or less. B. The force is in the middle. C. The effort arm is longer than the resistance arm. D. The fulcrum is in the middle. E. The resistance is in the middle.
Which of the following may affect absorption?
a. Coating of the tablet b. Hepatic (Liver) function c. Drug half-life d. A and B e. B and C f. All of the above