With three seconds left on the clock, Mia breaks free and scores the winning goal in her soccer game. Of the muscles listed, select the one with the primary action in extending the leg for kicking.
A. Sartorius
B. Biceps femoris
C. Quadriceps femoris
D. Tensor fasciae latae
E. Semimembranosus
Answer: C
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Pronation is defined as
A) a rolling of the distal epiphysis of the radius over the ulna. B) a twisting of the ulna medially. C) twisting the forearm so that the palms face anteriorly. D) the shortening of the angle between the radius and the humerus. E) movement of the mandible anteriorly, as seen when biting the upper lip.
All of the following statements referring to the uterine cycle are true except ________.
A) FSH and LH directly promote development of the uterine endometrium B) estrogen is secreted by the developing follicle in the follicular phase of the cycle C) the corpus luteum is formed from the ruptured follicle after ovulation D) a decrease in the levels of ovarian hormones signals menstruation
Drugs that lead to birth defects in the formation of the limbs are most damaging when the conceptus is exposed to them during weeks
A. 1-2 of development, before the placenta is fully formed. B. 12-16 of development, when limbs have formed but are not fully mature. C. 4-8 of development, when limbs are undergoing peak development. D. 24-28 of development, when plasticity of surrounding tissues has been lost.