Class notes

The Nervous System

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Course
Domestic Animal Science (ANTY2011)

Institution
Durham College ( )

Detailed explanation of the nervous system, it's many parts, how it functions, how pain relief works, and more.

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Uploaded on June 30, 2022
Number of pages 2
Written in 2018/2019
Type Class notes
Professor(s) Mandy walters
Contains The nervous system

nervous
system
cns
brain
cerebellum
central nervous system
nerves
spinal cord
spine
anatomy
medicine
veterinary medicine
medical
domestic animal
science
pain
relief
painkillers

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Pretty easy marks doing arithmetic P E M D A

Nervous System
 Central- Along centre axis of body
o Brain
 Cerebrum
 Biggest part- responsible for higher functions; memory, thought,
reasoning, emotions, language, learning
 Receives sensory information from body and initiates voluntary
movement (consciously aware of it)
 Cerebellum
 Second largest section
 Adjusts and fine tunes movement- helps coordinate movements
initiated by Cerebrum; helps with balance, posture, and complex
reflexes
 Brain Stem
 DO NOT DAMAGE- CAUSES DEATH
 Works with Diencephalon
 Responsible for basic functions on subconscious level; heart rate,
coughing, vomiting, blood pressure
 Midbrain
 Pons
 Medulla
 Diencephalon
 Assist with sensory input and relay back to Cerebrum
 Involved in sleep regulation; anger, aggression
 Thalamus
 Hypothalamus
 Pituitary Gland
o Helps with homeostasis; temperature regulation and digestion

o Spinal Cord- Continuation of brain stem; conducts sensory information from peripheral
nervous system and brings it to brain
 Cervical
 Thoracis
 Lumbar
 Sacral (Stops before Coccygeal)
 Peripheral- Away from centre of body; link between central nervous system and rest of body
o Spinal Nerves- Come off of spinal cord and supply the extremities (font leg, back leg, tail,
etc...)
 Radial Nerve- Beside Ulna; funny bone
 Femoral Nerve- Beside Femur
 Sciatic Nerve- Goes down centre of hind leg
 Mostly in skeletal muscle
 MUST KNOW WHERE THEY ARE TO PREVENT PARALYSIS AND PAIN WHEN
ADMINISTERING INJECTIONS

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