From an evolutionary standpoint, which of the following structures is considered the oldest, most primitive division of the brain?
A) forebrain
B) midbrain
C) hindbrain
D) cerebrum
E) medulla oblongata

Question

Quizplus · Accepted Answer

The hindbrain is considered the oldest and most primitive division of the brain, as it is the first to develop in embryonic development and is responsible for regulating basic life functions such as respiration and heart rate. The forebrain (A) and cerebrum (D) are the most evolved and complex areas of the brain, responsible for advanced processes such as conscious thought and reasoning. The midbrain (B) is responsible for sensory and motor functions, but is comparatively less important than the hindbrain and forebrain. The medulla oblongata (E) is an area of the hindbrain responsible for controlling autonomic functions and is considered one of the oldest or more primitive regions of the brain.

From an Evolutionary Standpoint, Which of the Following Structures Is