Nervous System is the body's decision and communication center. It is divided into two major divisions.- Central and Peripheral Nervous System. Central Nervous System It is made of the brain and the spinal cord. The brain is divided intro three parts: forebrain, midbrain and hindbrain. 1. Forebrain-consists of the cerebrum. thalamus and hypothalamus (part of the limbic system). 1. Cerebrum-or cortex is the largest part of the human brain. Associated with higher brain function such as thoughts and actions. It is divided into four sections: 1. Frontal Lobe-reasoning, planning, part of speech, movement, emotions and problem solving. 2. Temporal Love - associated with perception and recognition of auditory stimuli, memory and speech 3. Occipital Lobe- associated with visual processing. 4. Parietal Lobe associated with movement, orientation, recognition, perception of stimuli. 1. Right Hemisphere - is associated with creativity. 2. Left Hemisphere- is for logical abilities. 2. Limbic System often referred to as the "emotional brain". It is found buried within the cerebrum. 1. Thalamus-is a large mass of grey matter deeply situated in the forebrain; almost all sensory information enters this structure. 2. Hypothalamus - is involved in functions including homeostasis, emotion, thirst, hunger, arcadian rhythms and control of autonomic nervous system. It also controls the pituitary gland. 2. Midbrain consists of tectum and tegmentum. Also called mesencephalon, it involves functions such as vision, hearing, eye movement, and body movement. 3. Hindbrain consists of cerebellum, pons and medulla (brain stem). 1. Cerebellum-or the "little brain". Associated with regulation and coordination of movement, posture and balance. 2. Pons-it is involved in motor control and sensory analysis. It has parts that are important for the level of consciousness and for sleep. 3. Brain Stem (Medulla Oblongata)-underneath the limbic system, this structure is responsible for breathing. heartbeat, blood pressure, etc

Cerebrum

Largest part of the

c1-c-3

forward backward side neck neck movement

medulla oblongta

basic vital life functions

pons

voluntary motor

Limbic system

Thalamus and Hyphotalamus