Arrange the four structures listed below into the order in which sperm pass from the testis to the urethral meatus.
1. ductus deferens
2. urethra
3. ejaculatory duct
4. epididymis
4, 1, 3, 2
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Which of the following is not considered an accessory structure of the eye?
A) Conjunctiva B) Palpebra C) Superior oblique D) Lacrimal apparatus E) Cornea
All of the following are mechanoreceptors except ________.
A. tactile corpuscles B. sensory neurons wrapped around hair follicles C. cone cells D. lamellated corpuscles
Which statement regarding glycogen is correct?
A. Glycogen contains more potential energy for humans than cellulose. B. Glycogen, but not cellulose, is a polysaccharide eaten and digested by humans. C. Glycogen can be comprised of any monosaccharides. D. Glycogen contains more potential energy for humans than the carbohydrates found in starch.
Compared with the pectoral girdle, the pelvic girdle is
A) not as firmly anchored to the axial skeleton. B) comprised of more massive bones, which are adapted for weight bearing. C) composed of more separate bones. D) more flexible and freely movable. E) structurally identical.