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Exam 4 MC
Physiology 2420
| Question | Answer |
|---|---|
| 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 |
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GracieLou
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