All of the following cause flexion at the hip EXCEPT the ________
A) quadratus femoris
B) psoas major
C) iliacus
D) adductor brevis
A
Explanation:
B) The psoas major causes flexion at the hip.
C) The iliacus flexes the hip.
D) The adductor brevis adducts, flexes, and rotates the hip.
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The muscular activity that forcibly expulses the fetus from the uterus is called ________.
A) development B) labor C) parturition D) placental expulsion E) None of the answers are correct.
Which one of the following is not involved in sending the vibrational signal to the inner ear?
a. external auditory meatus. b. Eustachian tube. c. malleus. d. stapes. e. tympanum.
An antibody test on smooth muscle reveals fewer dense bodies and intermediate filaments in a patient with a colon disorder. What is the purpose of these structures?
A. They act as enzymes that remove phosphate from myosin. B. They are part of the intracellular cytoskeleton. C. They maintain relatively constant tension in smooth muscle for a period of time. D. They are shallow invaginations of plasma membrane. E. They allow for rapidly developing action potentials in smooth muscle cells.
Enzymes
A. are catalysts in chemical reactions. B. can be carbohydrate molecules. C. are polymers of ATP that store large amounts of energy. D. have names generally ending in the suffix "-ose." E. are broken down during chemical reactions they catalyze.