The Phase During Which Embryonic Cells Arrange Themselves into Three

question 30

Multiple Choice

The phase during which embryonic cells arrange themselves into three layers is called:

• A)cleavage.
• B)gastrulation.
• C)organogenesis.
• D)fertilization.
• E)induction.

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Definitions:

Fibularis Longus

A muscle in the lateral compartment of the lower leg that everts and plantarflexes the foot.

Tibialis Anterior

A muscle in the front of the leg that helps in dorsiflexion and inversion of the foot.

Extensor Digitorum Longus

A muscle in the lower leg that helps to extend the toes and dorsiflex the foot.

Flexor Digitorum Longus

A muscle in the lower leg that helps in flexing the toes and plays a significant role in stabilizing the foot.