The triceps brachii and the biceps brachii ________.
A. are synergistic for each other
B. both have their origin in the forearm
C. are antagonist to each other
D. both have their insertions in the shoulder
Answer: C
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The axial skeleton includes ________
A) the skull, the scapula and the vertebral column B) the skull, vertebral column, and rib cage C) arms, legs, hands, and feet D) the skull, vertebral column, and pelvis
The pharmaceutical drug RU-486, typically used to treat Cushing's disease, is also sometimes used for medical abortions. RU-486 blocks progesterone production and its binding to receptors in the reproductive tract. Why would this affect pregnancy and embryonic growth?
A. Progesterone stops the corpus luteum from degrading. Without the corpus luteum, hCG (responsible for uterine growth and development) cannot be produced. B. Progesterone maintains the endometrium and prevents it from breaking down and shedding in a normal menstrual period. It also assists in stopping uterine contractions until birth. C. Progesterone stimulates release of aldosterone from the adrenal cortex. Without aldosterone, fluid is lost through the kidneys and causes high blood pressure in the uterus, which is fatal to the fetus. D. Progesterone stimulates the ovaries to produce LH, which then causes hCG production. Production of hCG is needed to inhibit pituitary FSH secretion, which induces menstrual periods.
The nose is divided into right and left halves called the __________.
A. nasal cavities B. nasal fossae C. nasal septa D. nasal vestibules E. nasal apertures
Select the term that is correctly matched to its corresponding structure.
A)Anticodon and DNA B)Codon and DNA C)Codon and mRNA D)Triplet and tRNA E)Anticodon and mRNA F)Triplet and mRNA