Nervous System

• The Nervous System has 2 parts; the Central Nervous System (CNS) and the Peripheral Nervous System (PNS).
• The CNS has 2 major structures; the brain, and the spinal cord.
• The brain is found in the skull/cranium.
• There are 6 structures in the brain; Cerebrum, Cerebellum, Diencephalon, Midbrain, Pons, and the Medulla Oblongata.
• The Cerebrum is the largest section of the brain
• The cerebrum is divided into 2 major hemisphere, the right and the left.
• The cerebrum is further divided into 4 lobes; Frontal, Parietal, Temporal, Occipital.
• The frontal lobe (cerebrum) is primarily responsible for reasoning and thought.
• The parietal lobe (cerebrum) is primarily responsible for integrating sensory information.
• The temporal lobe (cerebrum) is primarily responsible for processing auditory information from the ears.
• the occipital lobe (cerebrum) is primarily responsible for processing VISUAL information from the eyes.
• The cerebellum is a section of the brain that is located at the back of the head, below the cerebrum, and above the 1st cervical of the neck.
• The cerebellum is responsible for muscle coordination, balance, posture, and muscle tone.
• The diencephalon if found between the cerebrum and the midbrain.
• The diencephalon contains 2 structures; the Thalamus, and the Hypothalamus.
• The Thalamus (diencephalon) directs sensory impulses to the cerebrum.
• The Hypothalamus (diencephalon) controls and regulates the autonomic nervous system such as; temperature, appetite, water balance, sleep, and blood vessel constriction and dilation.
• The Hypothalamus (diencephalon) controls emotions such as; anger, fear, pleasure, pain, and affection.
• The Midbrain is located below the cerebrum.
• The Midbrain is responsible for eye and auditory reflexes.
• The Pons is located below the midbrain, in the Brainstem.
• The Pons is responsible for certain reflex actions.