Class notes
Class Notes (VPhy) Vet. physiology: Nervous System
- Course
- Institution
- Book
Covers the physiology/anatomy of Nervous Sys. Covers the division of the system. Organs including the brain.
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
Test Bank For Animal Physiology: From Genes to Organisms 2nd Edition by Lauralee Sherwood
-
Class Notes (Vphy) Vet. Physiology: Respiratory System
-
Class notes for Vphy Veterinary Physiology: Blood Physiology
Seller
Follow
faustinagailibaez
Content preview
PHYSIOLOGY OF THE NERVOUS SYSTEMVeterinary General Physiology
The Nervous System
sustained movement
- It provides rapid regulation over greater
3. Suppression of useless
distance patterns of movement
- It coordinates multiple organs
- Cells: Neuron, Neuroglia
thalamus 1. Relay station for all synaptic
Ultimate Function of N. S. input
- Rapidly translate sensory information into 2. Crude awareness of
action potentials (APs) which can be sensation
processed (integrated) into an adaptive 3. Some degree of
consciousness
response via activation of effector organs.
4. Role in motor control
- Whole body regulation (1 of the 2 control
systems)
hypothalamus 1. Regulation of many
homeostatic functions, such
Simple Neural Pathways: Reflex arcs
as temperature control,
thirst, urine output, and food
intake
ORGANIZATION OF THE NERVOUS 2. Important link between
SYSTEM nervous and endocrine
● Central Nervous System (CNS) systems
● Peripheral Nervous System (PNS) 3. Extensive involvement with
emotion and basic behavioral
Central Nervous System (CNS) patterns
- where most neuronal bodies are contained
- Brain
cerebellum 1. Maintenance of balance
- Spinal cord
2. Enhancement of muscle
tone
1. Brain
3. Coordination and planning of
- contains forebrain, midbrain, hindbrain
skilled voluntary muscle
activity
a. Forebrain
- receives, integrates sensory
information from nose, eyes, ears brainstem 1. Origin of majority of
- in land-dwelling vertebrates', contains (midbrain, pons, peripheral cranial nerves
the highest integrating centers medulla) 2. Cardiovascular, respiratory,
and digestive control centers
b. Midbrain
3. Regulation of muscle reflexes
- coordinates reflex responses to sight, involved with equilibrium
sounds and posture
c. Hindbrain 4. Reception and integration of
- reflex control of respiration, blood all synaptic input from spinal
circulation, other basic tasks cord; arousal and activation
- in complex vertebrates, coordination of cerebral cortex
5. Role in sleep–wake cycle
of sensory input, motor dexterity, and
possibly mental dexterity
2. Spinal Cord
- Long, slender cylinder of nerve tissue
Main components Function - Enclosed in by vertebral column
- spinal nerves are named according to the
cerebral cortex 1. Sensory perception
2. Voluntary control of muscle region of the vertebral column from which
3. Language they emerge
4. Personality traits ● Humans: C8T12L5S5Cocc1
5. Sophisticated mental events, ○ 8 cervical (neck) nerves, 12
such as thinking, memory thoracic (chest) nerves, 5
decision making, creativity, lumbar (abdominal) nerves, 5
and self-consciousness
sacral (pelvic) nerves, and 1
basal nuclei 1. Inhibition of muscle tone coccygeal (tailbone) nerve
2. Coordination of slow, ● Canine: C7T13L7S3Cd20-23
1
, PHYSIOLOGY OF THE NERVOUS SYSTEM
Veterinary General Physiology
- thick bundle of elongated nerve roots within
the lower vertebral canal is known as the
cauda equina
● Gray matter - consists of:
○ cell bodies
○ dendrites
○ glial cells
○ can be viewed as the computers of
CNS
● White matter - consists of:
○ myelinated fibers (axons)
○ white appearance is due to the lipid
(fat) of the myelin
○ viewed as wires of CNS that connects
the computers to each other
Peripheral Nervous System (CNS)
- has nerve fibers carrying information
between CNS and other parts of the body
(periphery)
- contains ganglia (cell bodies of most sensory
neurons and some non motor effector
neurons)
PNS Division:
a. Afferent
- convey signal towards CNS
➔ Sensory stimuli
➔ Visceral stimuli
b. Efferent
- convey signal from CNS
➔ Autonomic NS
➔ Somatic NS
➔ Enteric NS
- Efferent autonomic nerve pathways consist of
a two-neuron chain between the CNS and the
effector organ
EFFECTS OF THE AUTONOMIC NERVOUS SYSTEM
ON VARIOUS ORGANS
2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller faustinagailibaez. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$13.87. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
52355 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now