PNS Basics
The two major divisions of the nervous system
What are the Central Nervous system and the peripheral nervous system?
The type of muscle the somatic system controls
What is skeletal muscles?
The autonomic system controls this.
What are involuntary body functions?
The cell that makes myelin in the PNS
What is a schwann celll?
A nerve cell that conducts electrical impulses
What is a neuron?
Nerves
What is the main structure of the peripheral nervous system?
The type of control of the somatic system.
What is voluntary?
Heart rate, breathing, digestion, pupil size
What are examples of autonomic functions?
The cell that makes myelin in the CNS
What is an Oligodendrocite?
A neuron that senses stimuli and sends signals to the CNS.
What is a sensory neuron?
Through sensory and motors neurons
How does the PNS and CNS communicate with one another?
A fast, automatic response that doesn't require thinking
What is the reflex arc?
The two branches of the autonomic system
What is the Sympathetic and Parasympathetic?
This cell helps clean up and get rid of pathogens in the CNS.
What is the microglial cell?
A neuron that carries signals from CNS to muscles or glands
What is a motor neuron?
The complete pathway that helps diminish bodily harm
What is a reflex arc?
The type of neuron that carries signals from the CNS to the PNS
What is the efferent or motor neuron?
Smooth muscle, cardiac muscle, and glands
What are the things controlled by the autonomic system?
This helps support the health of a neuron in the CNS
What is an Astrocyte?
Speeds up impulse conduction
What is myelin sheath?
To relay information between the CNS and the rest of the body
What is the main function of the PNS?
The reason why reflexes are faster than voluntary movements.
What is because they bypass the brain and go through the spinal cord?
Adjustment of organ activity based on the body's need
How does the ANS maintain homeostasis?
This cell helps support the health of a neuron in the PNS
What is a Satellite cell?
The difference between a neuron and a nerve
What is a neuron is a single cell and a nerve is a bundle of neurons?