The Portion of the Blastocyst That Contains the Potential Embryo

question 53

Multiple Choice

The portion of the blastocyst that contains the potential embryo is the:

• A)ectoderm
• B)trophoblast
• C)inner cell mass
• D)endoderm

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Definitions:

Phalen Test

A diagnostic test performed by flexing the wrist gently as far as possible, then holding this position to test for numbness or tingling in the fingers, used in diagnosing carpal tunnel syndrome.

Carpal Tunnel Syndrome

A condition characterized by numbness, tingling, and weakness in the hand and arm, caused by pressure on the median nerve in the wrist.

Dorsiflex

The action of pulling the toes or foot upwards towards the shin, decreasing the angle between the dorsum of the foot and the leg.

Plantarflex

The downward movement of the foot at the ankle, away from the leg, which helps in walking, running, or pushing an object like a pedal.