Nervous Systems Controls of Animalia

Divisions of the human Brain Frontal Lobe: responsible for thoughts, ideas, emotion, and motor coordination. Parietal Lobe: responsible for the interpretation of pain, touch, taste, temperature, and pressure. Temporal Lobe: responsible for the interpretation of auditory information Occipital Lobe: responsible for the interpretation of visual information. Olfactory Bulb: responsible for the interpretation of smell.

The Human Nervous System Peripheral Nervous System

Peripheral Nervous System (PNS) Made up of sensory and motor neurons connected to the Central Nervous System or CNS. Basically the peripheral system is responsible for keeping the individual aware of and able to react to its environment. The Peripheral Nervous System (PNS)contains only nerves and connects the brain and spinal cord (CNS) to the rest of the body.

Peripheral Nervous System Two main components of the PNS: 1. sensory ( afferent ) pathways that provide input from the body into the CNS (Central Nervous System). 2. motor ( efferent ) pathways that carry signals to muscles and glands ( effectors ).

Nervous System Organizaion

Autonomic Division Made of the parasympathetic nervous system and the sympathetic nervous system. Parasympathetic Nervous System: inhibits organ and cell function. “relax and digest” Sympathetic Nervous system: stimulates organ and cell function; “fight or flight” response. **The two systems work against each other.

The Reflex An involuntary (automatic) response to a stimulus response is done without the awareness of the CNS controlled by the sensory-somatic system

The Reflex 1. Sense organ sends stimulus to spine via a sensory neuron. 2. In spine the impulse is sent to a motor neuron via an interneuron. 3. Motor neuron stimulates the muscle cells by releasing acetocholine. **This does not involve a response from the brain.