The Cells of the Epiblast of a Developing Mammalian Embryo

question 8

Multiple Choice

The cells of the epiblast of a developing mammalian embryo display what cell adhesion molecules on their surfaces,molecules that presumably promote their close association with one another?

• A)selectins
• B)E-cadherins
• C)P-cadherins
• D)integrins
• E)IgSFs

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Definitions:

Pelvic Splanchnic Nerves

Nervous system fibers that originate from the sacral spinal nerves, innervating the pelvic organs.

Spinal Nerves

Nerves that originate from the spinal cord, conveying motor, sensory, and autonomic signals between the spinal cord and the body.

Adrenergic

Relating to nerve cells or fibers that release adrenaline (epinephrine) or noradrenaline (norepinephrine) as a neurotransmitter.

Postganglionic Sympathetic

Refers to the neurons in the sympathetic nervous system that transmit nerve impulses away from the ganglia to target organs.