Peripheral Nervous System Teas test

Nerves and ganglia

Spinal Nerves

Cranial Nerves

31

12

A cluster of cell bodies.

To link the CNS to the body’s organs and appendages.

Somatoic Nervous System

Autonomic Nervous System

• Is part of the PNS link to voluntary movements.
• This part of the PNS also has two subdivisions:
• Sensory Nervous System
• Somatosensory System

• Touch
• Taste
• Smell
• Hearing
• Vision

• Section of the PNS that involves conscious recognition of :
• Temperature
• Pain
• Touch
• Pressure
• Movement
• Position
• Vibration

The system of the PNS that gains information from sensory nerves and sends it through the spinal cord and up to the parietal lobe.

Afferent Neurons

Efferent Neurons

Transmit stimuli to the CNS

Perform from a response to Afferent neurons, which then transmits signals from the CNS to the rest of the body.

Part of the PNS that manages involuntary movements and functions. Communicates info to our internal organs.

Two main divisions:

• Sympathetic
• Parasympathetic

• Part of the PNS and Autonomic NS the we know as the “fight or flight” response.
• Neurotransmitter involved is acetylcholine.
• Originates in the thoracic and lumber regions of the spinal cord.

• Part of the PNS and autonomic NS that manages the body’s functions when at rest.
• “Rest and digest”
• Opposites function as SNS. Relaxes muscles and slows heart rate.
• Increases bowl movements and urinary output.
• Neurotransmitter involved is acetylcholine, that binds to muscarinic receptors, allowing the contraction of smooth muscles.