The fibrocartilage outer layer of the intervertebral disc is called the
A) annulus fibrosus.
B) nucleus pulposus.
C) synovial fluid.
D) gelatinous pulposus.
E) gelatinous fibrosus.
A
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The structure that stores sperm before ejaculation is the ________.
Fill in the blank(s) with the appropriate word(s).
During implantation, the
A) syncytial trophoblast erodes a path through the endometrium. B) inner cell mass begins to form the placenta. C) maternal blood vessels in the endometrium are walled off from the blastocyst. D) entire trophoblast becomes syncytial. E) inner cell mass is temporarily deprived of nutrients.
An aponeurosis is most similar to a ________
A) muscle B) ligament C) bone D) tendon
The orbicularis oculi muscle
A. puckers the mouth for kissing. B. contributes to laughing and smiling. C. causes crow's feet wrinkles. D. raises the eyelid. E. contributes to pouting.