Showing your palm to someone who is in front of you, as if to tell him or her "Stop," requires ________.
A. abduction of the wrist
B. dorsiflexion of the hand
C. flexion of the wrist
D. hyperextension of the metacarpophalangeal joints
E. hyperextension of the wrist
Answer: E
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Cortisol has the following effects:
A) suppresses the immune system and influences brain function. B) suppresses the immune system and causes positive calcium balance. C) suppresses the immune system. D) causes positive calcium balance. E) influences brain function.
A component of blood cells called a Barr body represents a(n):
a. Aggregation of ribosomes in reticulocytes b. Clump of polymerized hemoglobin c. Cytoplasmic inclusion found in eosinophils d. Enlarged phagocytic vesicle found in neutrophils e. Inactivated X chromosome extending from the nucleus in neutrophils
Lymphatic organs
A. contain an incomplete capsule of dense irregular connective tissue. B. contain a complete capsule of dense irregular connective tissue. C. lack a connective tissue capsule.
The hormone gastrin __________.
a. increases the activity of parietal and chief cells b. is produced in response to sympathetic stimulation c. is secreted by the pancreatic islets d. inhibits the activity of the muscularis externa of the stomach