The specificity of hormone action derives from
A. target cell receptors that are unique for all steroid hormones.
B. target cell receptors that bind only certain neurotransmitters.
C. target cell receptors that are unique for all nonsteroid hormones.
D. target cell receptors that are unique for each hormone.
Answer: D
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The axial skeleton is composed of:
A. all skeletal structures below the pelvis. B. the skull, face, thoracic cage, and vertebral column. C. the upper and lower extremities. D. the ribs, pelvic girdle, and upper and lower extremities.
Which of the following describes the term teaser?
A) accumulation of colostrum on the nipples of mares B) fluid used to increase the volume of semen C) extra contraction of flank muscles during respiration D) stallion used to determine which mares are in heat
The pleural cavity is
A. the space located between the visceral and parietal pleura. B. a double-layered serous membrane that anchors some of the abdominal organs to the body wall. C. the membrane that lines the pericardial sac. D. the serous membrane that lines the abdominal and pelvic cavities. E. the serous membrane that covers the lungs.
Of the following hormones, which has more target cells in the body than the others?
A. Antidiuretic hormone (ADH) B. Corticotropin releasing hormone (CRH) C. Growth hormone-releasing hormone (GHRH) D. Growth hormone (GH) E. Oxytocin (OT)