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Exam 4 MC

Physiology 2420

What type of cells secrete mucus in the respiratory tract? Goblet Cells
The difference between what two pressures drives air into and out of lungs? Atmospheric and intra-alveolar
The surface tension of the alveolus is reduced by surfactants produced by what type of cells? Type II alveolar
What is the volume of air moved into and out of the lungs in a single breath during unforced breathing called? Tidal volume
A decrease in ____________ is indicative of an obstructive pulmonary disease. forced expiratory volume
What is the term for the volume of air that reaches the respiratory zone each minute? alveolar ventilation
After fluid passes through the entire proximal tubule, the fluid will enter the ___________. loop of Henle
What is the process whereby molecules are selectively transported from the peritubular fluid to the lumen of the renal tubules? secretion
What is the brush border? microvilli on the apical membrane of the proximal tubule
The clearance of what substance provides the best estimate of glomerular filtration rate? Inulin
During tubuloglomerular feedback of glomerular filtration rate, paracrines secretes from what structure cause constriction of the afferent arteriole? macula densa
The absence of __________ in the fetus will further the development of the __________ into the female reproductive tract. Mullerian-inhibiting substance; Mullerian ducts
Enzymes that facilitate entry of sperm into the ova are contained within the ________ of the spermatozoa. acrosome
The follicular phase of the ovarian cycle corresponds with what phase(s) of the uterine cycle? both menstrual and proliferative phases
In the absense of implantation of a fertilized embryo, the menstrual phase of the uterine cycle is initiated by the degeneration of the ___________. corpus luteum
The secretion of estrogen and progesterone by the corpus luteum is maintained during pregnancy by ________ until the corpus luteum degenerates and the ________ takes over secretion of these hormones. human chorionic gonadotropin (hCG) : placenta
Which part of the blastocyst develops into the fetus? inner cell mass
The hormonal trigger for menstration involves a ______. loss of progesterone secretion from the corpus luteum
Created by: GracieLou