Arteries have a much thicker _____ than veins, which signifies their role in controlling blood pressure.
What will be an ideal response?
tunica media
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Which of the following is not an effect of aging on the muscular system?
A) hypertrophy B) smaller muscle fibers C) decreased recovery from muscle injuries D) exercise tolerance decreases E) muscles become less elastic
Darryl began smoking when he was 13. He witnessed the majority of his family members and friends smoke while growing up. Even though Darryl is now an epidemiologist and understands the effects of smoking, he has had a difficult time quitting. Who or what is most responsible for Darryl's personal choice to begin smoking?
A. Age B. Darryl C. Peer pressure D. Marketing from cigarette companies
Explain how spinal nerves are named
a. Spinal nerves are named for the region of the vertebral column from which they emerge. b. Spinal nerves are named for the region of the brain from which information either originates or terminates. c. Spinal nerves are named for the region of the body that they innervate.
The ________ lead from the eyes to the optic chiasma.
A. optic radiations B. optic nerves C. optic tracts