Opiate drugs derived from poppies relieve pain in humans because the human nervous system has
A. sodium and potassium membrane channels.
B. neurotransmitters.
C. receptors for endogenous opiates.
D. myelin.
Answer: C
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Ginger was a happy, healthy 17-year-old girl. One day while sitting at the kitchen table with her family, she looked up with an odd expression, complained that her head hurt, dropped her fork, and fell off her chair as she lost consciousness. Her father caught her before her head hit the floor. Ginger regained consciousness at the hospital, where it was determined that she had suffered from a
ruptured brain aneurysm. An aneurysm results when a blood vessel wall becomes progressively thinner and weaker, and can ultimately rupture, depriving of blood the areas it normally supplies. Sometimes permanent brain damage results. Ginger seems to have all of her normal functions and cognitive abilities, except she cannot see. What areas did the ruptured blood vessel possibly supply with blood? If instead of blindness she could see normally but control of eye movement was abnormal, what areas may have been damaged by loss of blood? What will be an ideal response?
________ interact with bile salts to form micelles needed for lipid absorption.
A) Fatty acids and monoglycerides B) Fatty acids and diglycerides C) Fatty acids and triglycerides D) Complex carbohydrates and monoglycerides E) Complex carbohydrates and fatty acids
When a female is standing in anatomical position, which of the following structures of the uterus is the most inferior?
A. The fornix B. The external os C. The cervical canal D. The fundus E. The body
Which hormone causes pelvic ligaments and the pubic symphysis to relax, widen, and become more flexible during pregnancy?
A) estrogen B) progesterone C) relaxin D) luteinizing hormone (LH)