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3 Tutorials that teach Peripheral Nervous System (PNS)
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Peripheral Nervous System (PNS)

Peripheral Nervous System (PNS)

Author: Barbara Ludins
Description:

This lesson will differentiate between the Somatic Nervous System and the Autonomic Nervous System that make up the Peripheral Nervous System.

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Tutorial

Notes on "Peripheral Nervous System"

Overview

(00:00-02:05) Somatic Nervous System

(02:06-02:47) Autonomic Nervous System

(02:48-03:12) Sympathetic Branch

(03:13-03:47) Parasympathetic Branch

(03:48-04:18) Recap


Terms to Know
Autonomic Nervous System

Nerves connected to internal organs, which control internal, involuntary body functions (like breathing, heart rate, and digestion).

Parasympathetic Nervous System

Helps to maintain normal body functions and calm it down when excited by the sympathetic nervous system.

Reflex Arc

Simple, automatic responses to stimuli.

Sensory Neurons

Neurons that send information to brain from sense organs.

Somatic Nervous System

Nerves connected to the sense organs and skeletal muscles, which control voluntary movement, reflexes, and sensory neurons.

Sympathetic Nervous System

Controls body responses related to “flight or fight” response, when feel like in danger.