The placenta allows
A. carbon dioxide and other wastes to diffuse from the maternal blood to the embryonic blood.
B. oxygen and nutrients to diffuse from maternal blood to the embryo.
C. maternal blood to mix with fetal blood.
D. the fetus to enlarge without rupturing the mother's abdomen.
Answer: B
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Receptors
a. experience action potentials in response to stimuli b. receive signals from the afferent division of the PNS c. can initiate action potentials in afferent neurons d. sends efferent information to the CNS e. perform all of the above
Skeletal muscles are attached to bones via _______.
Fill in the blank(s) with the appropriate word(s).
The type of nervous tissue that protects and supports the nerve is called “nerve glue” or _____
The inner, gelatinous region of each intervertebral disc is called the
A. articular ring. B. nucleus pulposus. C. chondral ring. D. annulus fibrosus. E. lamella.