The second branch off the abdominal descending aorta is the ____________________.
Fill in the blank(s) with the appropriate word(s).
superior mesenteric artery (SMA)
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Which of the following would you NOT expect when smooth muscle along the digestive tract is exposed to acetylcholine (ACh)?
A. Increased risk of constipation B. Increased tension production by smooth muscle C. Smooth muscle cells depolarization D. Increased Ca2+ influx into the smooth muscle cells E. Direct flow of Ca2+ ions from one cell's cytoplasm to its neighbouring cell's cytoplasm. F. Increased frequency of peristaltic contractions
Matching
A) Addison's disease B) Diabetes mellitus C) Graves' disease D) Acromegaly E) Pituitary dwarfism 11) An autoimmune problem involving the thyroid gland. 12) Hyposecretion of growth hormone. 13) Hyposecretion of the pancreas. 14) Hyposecretion of the adrenal cortex. 15) Hypersecretion of growth hormone
The neurotransmitter most likely produced when a person uses a drug that creates a sense
of well-being is A) dopamine. B) substance Q. C) enkephalin. D) glutamic acid.
The renal threshold is the
a. maximum amount of a particular substance that can be excreted in the urine per unit of time. b. maximum amount of a particular substance that the tubular cells are capable of actively reabsorbing per unit of time. c. plasma concentration of a particular substance at which its Tm is reached and the substance first appears in the urine. d. maximum amount of waste products that can be concentrated in the urine per unit of time. e. maximum amount of water that can be osmotically absorbed across the tubules per unit of time.