In the Early Fetus, All of the Following Are Parts

question 69

Multiple Choice

In the early fetus, all of the following are parts of the chorionic villi except the

• A) decidua.
• B) syncytiotrophoblast.
• C) extraembryonic mesoderm.
• D) cytotrophoblast.

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Definitions:

Motor Homunculus

A visual representation of the body within the brain, indicating how different parts are represented in the motor cortex, highlighting the control of various muscle groups.

Motor Control

The process by which humans and animals use their brain and nervous system to activate and coordinate the muscles and limbs involved in the performance of a movement.

Tourette Syndrome

Disorder of the motor system, characterized by involuntary vocalizations (sometimes including curse words and grunting sounds) and odd, involuntary movements of the body, especially of the face and head.

Parkinson Disease

A progressive neurological disorder characterized by motor symptoms such as tremor, rigidity, and bradykinesia, as well as non-motor symptoms, due to loss of dopamine-producing cells in the brain.