Developing Defects from Teratogens Occur Only During the Third Trimester

question 111

True/False

Developing defects from teratogens occur only during the third trimester.

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Definitions:

Carcinoma

Carcinoma is a type of cancer that begins in the skin or in tissues that line or cover internal organs.

Myelin Sheath

A fatty layer that surrounds the axon of some neurons, increasing the speed at which electrical impulses propagate along the nerve cell.

Acetylcholine

A neurotransmitter in both the central and peripheral nervous systems that plays an important role in muscle contraction and sensory perception.

Axons

Long, slender projections of neurons that conduct electrical impulses away from the neuron's cell body, facilitating communication within the nervous system.