This figure shows the muscles of facial expression. What muscle does number 2 indicate?
A. Nasalis
B. Procerus
C. Epicranius
D. Orbicularis oculi
E. Platysma
A
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Which of the following hormones are more important post-puberty for bone growth?
a) insulinlike growth factors b) thyroid hormones c) human growth hormone d) insulin e) sex hormones
Ghrelin, produced by the stomach, is a powerful appetite stimulant
Indicate whether the statement is true or false
If through injury, both the blood flow to the kidneys and the glomerular filtration pressure decrease, which of the following will likely occur?
A) The renin-angiotensin system will be activated. B) Sodium reabsorption will be inhibited. C) Vasoconstriction of the afferent arterioles and glomerular capillaries. D) Vasodilation of the efferent arterioles and glomerular capillaries. E) The amount of ADH released in the blood will decrease.
Receptors
a. may be either a specialized ending of an afferent neuron or a special cell closely associated with the peripheral ending of an afferent neuron. b. are present for every modality in the environment. c. when stimulated bring about opening of Na+ channels in the afferent neuron membrane adjacent to the receptor. d. two of these answers. e. all of these answers.