The outermost part of the brain, made up of tightly packed neurons and only a tenth of an inch thick, is called the ________.
A) amygdala
B) medulla
C) cerebellum
D) cortex

Question

The outermost part of the brain, made up of tightly packed neurons and only a tenth of an inch thick, is called the ________.
A) amygdala
B) medulla
C) cerebellum 
D) cortex

Quizplus · Accepted Answer

The cortex is the correct answer as it is the outermost part of the brain, made up of tightly packed neurons, and is only 1/10 of an inch thick. The amygdala is a small almond-shaped structure in the temporal lobe that plays a role in emotional processing. The medulla is the lower part of the brainstem that controls vital functions such as breathing and heart rate. The cerebellum is located under the cortex and is responsible for motor coordination and balance.

The Outermost Part of the Brain, Made Up of Tightly