Which of the following is due to an aging cardiovascular system?
A. Veins lose collagen.
B. The tunica interna thickens.
C. The direction of blood flow in some capillaries reverses.
D. Arteries become less rigid.
Answer: B
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A male patient comes into the clinic with his female partner. He complains of a painful burning sensation while urinating. He suspects an STI, but his partner has no symptoms to speak of. Which of the following STIs does he most likely have?
A. AIDs B. Chlamydia C. Syphilis D. Gonorrhea
The sympathetic nervous system's primary influence on the kidney is to cause dilation of the efferent arterioles
Indicate whether the statement is true or false
During amphimixis,
A) sperm become capacitated. B) the zygote is formed with 46 chromosomes. C) the male and female pronuclei fuse. D) meiosis occurs. E) gametes are formed.
The amount of air that can be forcibly exhaled after a tidal expiration is around 1200 mL
Indicate whether the statement is true or false