Which of the following is not correct for the sigmoid arteries?
A) They traverse the sigmoid mesocolon.
B) They help to form the marginal artery.
C) They arise from the inferior mesenteric artery.
D) They typically divide into ascending and descending branches.
E) They are the main source of blood to the left ureter.
Ans: E
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A. spleen B. lymphatic vessels C. pineal gland D. lymph nodes E. thymus
Where does the chemical reaction between thyroglobulin and iodine take place?
A) in lysosomes B) in rough endoplasmic reticulum C) in the lumen of the thyroid follicle D) in pinocytotic vesicles E) in apical microvilli
Which may occur as a result of muscle atrophy?
A. Fibers waste away and die. B. Muscle loses tone. C. Fibers become weaker. D. Muscle size is reduced. E. All of the choices are correct.
Raising your arm to shoulder level is accomplished almost entirely by the
A. pectoralis major. B. biceps brachii. C. trapezius. D. deltoid. E. triceps brachii.