The small opening of the uterus that sperm would first enter is called the ________.
Fill in the blank(s) with the appropriate word(s).
external os
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During the second trimester, the organ systems
A) will not change significantly in size, but will become functional. B) will complete their functional development. C) of the placenta will grow much faster than the embryo itself. D) will not continue functional development, but will increase greatly in size. E) None of the answers are correct.
a muscle of uniform width with fascicles aligned along its longitudinal axis would be classified as a _____________ muscle.
Fill in the blank(s) with the appropriate word(s).
The synapse more common in embryonic nervous tissue than in adults is the ________
Fill in the blanks with correct word
Match the following systems to their functions:
A) Lymphatic B) Cardiovascular C) Immune D) Endocrine 1) Controls the body with chemical molecules called hormones. 2) Delivers oxygen and nutrients to the tissues. 3) Produces antibodies that neutralize foreign substances. 4) Removes and filters excess fluid from tissues.