ALR KNOW DONT LOOK "DIVISIONS OF THE NERVOUS SYSTEM

SOMATIC NERVOUS SYSTEM

Associated with activities tradionally thought of as concious or voluntary

• Involved in the relay of sensory and motor information to and from the CNS to muscles, are efferent fibers

• (efferent = “moving away from”)

• Sensory neurons, carrying sensory information to the CNS, are afferent fibers (afferent = moving toward)

• Efferent = exit / afferent = arrive

AUTOMATIC NERVOUS SYSTEM

Controls our internal organs and glands and is generally considered to be outside the realm of voluntary control

SYMPATHETIC NERVOIUS SYSTEM

Involved inh preparing the body for stress related activities

PARASYMPATHETIC NERVOUS SYSTEM

Returning the body to routine, day to day operations

HINDBRAIN

Controls essential, life-sustaining autonomic functions and basic motor coordination

FOREBRAIN

The largest and most complex brain region, responsible for thinking, sensory processing, emotions, memory, survival drives, and voluntary movement.

LIMBIC SYSTEM

A group of brain structures located deep inside the brain that manage your emotions, memory, and basic survival drives

AMYGDALA

• It is a small, almond-shaped structure.

• It processes strong emotions like fear, anger, and anxiety.

• It helps attach emotional meaning to your memories. [1, 2, 3]

HIPPOCAMPUS

• It is a curved structure next to the amygdala.

• It forms and builds new long-term memories.

• It helps you navigate space and remember places

HYPOTHALAMUS

• It is a tiny area that controls body balance, or homeostasis.

• It manages hunger, thirst, sleep, and body temperature.

  • It links the nervous system to hormones

THALAMUS

Acts as the primary relay station and filter for nearly all incoming sensory and motor signals before they reach the cerebral cortex