The proximal convoluted tubule is lined with a
A. cuboidal epithelium with a large surface area.
B. simple squamous endothelium that makes a slick surface.
C. simple columnar epithelium with a slick smooth surface.
D. stratified squamous epithelium with a tough, durable surface.
E. stratified squamous epithelium with a large surface area.
Answer: A
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Nerve fibers in the skin are found in which of the following layers?
A) reticular layer B) epidermis C) papillary layer D) All of the answers are correct. E) None of the answers are correct.
Action potentials are transmitted on a one-to-one basis at both a neuromuscular junction and a synapse
Indicate whether the statement is true or false
In the event of a severe increase in systemic blood pressure, what mechanism would increase GFR?
a) release of ANP and BNP b) constriction of afferent arterioles due to myogenic mechanism c) dilation of efferent arterioles d) increased autonomic stimulation of afferent arterioles
Proteins are composed of subunits called ________ and functional proteins include ________, which speed up chemical reactions in the body.
A. fatty acids; triglycerides B. amino acids; enzymes C. amino acids; antibodies D. fatty acids; enzymes