AP PSYCHOLOGY

Detailed explanation-1: -Brainstem: The oldest part and central core of the brain, beginning where the spinal cord swells as it enters the skull; the brainstem is responsible for automatic survival functions.

Detailed explanation-2: -The brain stem is the oldest and innermost region of the brain. It’s designed to control the most basic functions of life, including breathing, attention, and motor responses (Figure 4.7, “The Brain Stem and the Thalamus”).

Detailed explanation-3: -The brain stem begins where the spinal cord enters the skull and forms the medulla, the area of the brain stem that controls heart rate and breathing.

Detailed explanation-4: -The brain stem is the lower part of the brain that’s connected to the spinal cord (part of the central nervous system in the spinal column). The brain stem is responsible for regulating most of the body’s automatic functions that are essential for life. These include: breathing.

Detailed explanation-5: -Reticular Formation: A nerve network that travels through the brainstem and thalamus and plays an important role in controlling arousal.