Which One of the Following Embryonic Features Is the Forerunner

question 30

Multiple Choice

Which one of the following embryonic features is the forerunner of the brain and spinal cord?

• A) pharyngeal arches
• B) somites
• C) yolk sac
• D) neural groove
• E) chorionic villi

---

Definitions:

Bipolar Disorder

A psychiatric disorder marked by significant shifts in mood, ranging from emotional peaks (mania or hypomania) to valleys (depression).

Endogenous Depression

A type of depression arising from internal factors, often biological or genetic, rather than external life events.

Seasonal Affective

A type of depression related to changes in seasons, typically starting in the fall and continuing into the winter months.

Cognitive Therapy

A psychological treatment approach aimed at changing thought patterns to alter behavior and emotional states.