Nervous System

What can the PNS be divided into?

Spinal cord is hollow [blank_start]tube[blank_end] filled with [blank_start]cerebrospinal[blank_end] fluid - communicates with external [blank_start]nerves[blank_end] and control spinal [blank_start]reflexes[blank_end]

What is the forebrain made up of?

Function of forebrain

Function of Midbrain

Function of hindbrain

[blank_start]Somatic[blank_end]: Comprised of sensory neurons and motor neurons. Governs conscious brain sensing and response. [blank_start]Autonomic[blank_end]: - Unconscious or involuntary actions to stimuli. Automatic response to information.

Which system is broken into sympathetic and parasympathetic?

Sympathetic NS is responsible for [blank_start]fight[blank_end] or [blank_start]flight[blank_end] Parasympathetic NS is responsible for [blank_start]rest[blank_end] and [blank_start]digest[blank_end]

Each section of the NS is a collection of Neurons

What does every neuron have?

What are the three types of neurons?

[blank_start]Motor Neurons:[blank_end] Carry messages from brain to target organs, tissues, or cells, to evoke a response to the stimulus (cause the body to react to information). [blank_start]Sensory Neurons:[blank_end] Carry sensory information from the extremities and internal organs to the brain. Receive stimuli from environment and relay that info to the brain. [blank_start]Association Neurons:[blank_end] Found in the CNS and link motor and sensory neurons. Commonly used in reflex arcs.

Response of the NS is slow-acting and long-lasting

A reflex arc requires the brains coordination

Order the process of a reflex arc: Arrival of stimulus 2. [blank_start]Activation of sensory neuron[blank_end] 3. [blank_start]Info is processed and response triggered[blank_end] [blank_start]by interneuron[blank_end] 4. [blank_start]Activation of motor neuron[blank_end] 5. [blank_start]Response by effector[blank_end]