Treatment of infertility with HCG and gonadotropins can sometimes result in multiple pregnancies.
a. true
b. false
Answer: a. true
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Parasympathetic preganglionic axons from the sacral region of the spinal cord course through ____ nerves that innervate the ____
A. splanchnic; urinary bladder and adrenal glands B. pelvic; lower colon and reproductive glands C. sacral; lower colon and urinary bladder D. lumbar; stomach and intestines E. coccygeal; anus and vagina
The maintenance of a stabel internal environment is termed
-hematopoiesis -homeostasis -negative feedback mechanisms -positive feedback mechanisms
Oxygen diffusion from the alveolus to the pulmonary capillary occurs because
A. alveolar PO2 is greater than capillary PO2. B. oxygen diffuses faster than carbon dioxide. C. alveolar PCO2 is greater than capillary PCO2. D. alveolar PO2 is less than capillary PCO2. E. carbon dioxide diffuses faster than oxygen.
The body system that provides support and protection as well as being a site of blood cell production (hemopoiesis) is the ________ system.
A. respiratory B. muscular C. cardiovascular D. lymphatic E. skeletal