In the Period of the Embryo, the Inner Mass of the Zygote

question 68

Multiple Choice

In the period of the embryo, the inner mass of the zygote differentiates into three layers known as

• A) ectoderm, mesoderm, and endoderm.
• B) placenta, amnion, and chorion.
• C) blastocyst, trophoblast, and zygote.
• D) skin, muscle, and bone.

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Definitions:

Phantom Limb Sensation

The experience of sensations, often including pain, in a limb that has been amputated.

Neural Activity

The electrical and chemical processes that take place within the nervous system to transmit information.

Central Nervous System

The complex network of nerve tissues that controls the activities of the body, comprising the brain and spinal cord.

Bitter Taste

One of the basic taste sensations, perceived primarily by the taste buds, and is generally considered undesirable or unpleasant by many humans.