What is the basic distinction between an alveolar duct and an alveolar atrium?
A. Their shape
B. Their epithelial type
C. Their size
D. Their function
E. The presence or absence of cilia
Answer: A
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An important mechanism that controls metabolic pathways under physiological conditions is
A. negative feedback. B. positive feedback. C. signal transduction. D. genetic control.
Which of the following will cause contractions of uterine smooth muscle?
A. Decreasing levels of oxytocin B. Increasing levels of progesterone C. Increasing levels of oxytocin D. Decreasing levels of estrogen E. Decreasing uterine stretch
The renal corpuscle consists of the __________.
renal pelvis and renal papillae major calyx and minor calyces glomerulus and glomerular capsule proximal and distal convoluted tubules
In the renal corpuscle, the glomerular epithelium is a layer of specialized cells called:
a) tubular cells b) juxtaglomerular cells c) glomerulocytes d) macula densa cells e) podocytes