Which extrinsic eye muscle only performs medial rotation of the eye?
A. Superior rectus muscle
B. Inferior rectus muscle
C. Inferior oblique muscle
D. Medial rectus muscle
Ans: D. Medial rectus muscle
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Unipolar neurons are ________.
A. sensory neurons for the senses of hearing, equilibrium, vision, and smell B. sensory neurons other than the ones for the senses of hearing, equilibrium, vision, and smell C. always motor neurons D. either motor neurons or interneurons E. always interneurons
Which of the following expresses the correct average characteristics and composition of semen?
a. volume, 4 mL; sperm count; 20-100 million/mL b. volume, 0.5 L; sperm count, 10-100 million/mL c. volume, 1 mL; sperm count, 200-600 million/mL d. volume, 4.5 mL; sperm count, 5-10 million/mL
A joint between two bones is more technically referred to as a/an ________.
Fill in the blank(s) with the appropriate word(s).
The strands of boney tissue which characterize cancellous bone are known as ____.
a) lamellae b) canaliculi c) lacunae d) trabeculae