Changes in the composition of extracellular fluid are called
A) hormonal stimuli.
B) neural stimuli.
C) endocrine reflexes.
D) humoral stimuli.
E) None of the answers are correct.
D) humoral stimuli.
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Match the following:
A) Graves' disease B) Diabetes mellitus C) Acromegaly D) Addison's disease E) Pituitary dwarfism 1) An autoimmune problem involving the thyroid gland. 2) Hyposecretion of growth hormone. 3) Hyposecretion of the pancreas. 4) Hyposecretion of the adrenal cortex. 5) Hypersecretion of growth hormone.
?The liver converts toxic ammonia to a harmless substance called
a. urea
b. carbohydrate
c. sodium
d. mineral salt
Which of the following statements concerning liver sinusoids is true?
(a) they are continuous with bile canaliculi (b) they are surrounded by a well developed basal lamina (c) they are lined by continuous endothelial cells (d) they deliver blood to the central vein (e) they deliver blood to the portal vein
Which statement regarding sympathetic stimulation effects on blood pressure is incorrect?
a. vasoconstriction of arterioles increases total peripheral resistance. b. decreased end diastolic volume increases cardiac output. c. increased stroke volume increases cardiac output. d. vasoconstriction of veins increases venous return e. vasoconstriction of veins increases stroke volume.