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Nervous System Anatomy: Central & Peripheral Nerves, Neurons, and Autonomic System, Slides of Anatomy

National Institute of Industrial EngineeringAnatomy

An overview of the nervous system, focusing on the central nervous system (cns) and peripheral nervous system (pns). Topics include the functions of cns and pns, neuron types, and the autonomic nervous system. Learn about the role of somatic and visceral nerves, sensory and motor neurons, and the differences between parasympathetic and sympathetic innervation.

Typology: Slides

2012/2013

Uploaded on 10/01/2013

sanjev
sanjev 🇮🇳

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NERVOUS SYSTEM I
CNS (Central Nervous System)
Segmentation
PNS (Peripheral Nervous System)
Spinal Nerves
Neuron Types
Autonomic Nervous System
(how many nervous systems are there anyways?)
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NERVOUS SYSTEM I

CNS (Central Nervous System) Segmentation PNS (Peripheral Nervous System) Spinal Nerves Neuron Types Autonomic Nervous System (how many nervous systems are there anyways?)

Central Nervous System (CNS)

Brain and Spinal Cord “Command Central” PNS (Peripheral Nervous System) are nerves that go out to targets in body

Counting Body Segments

(vertebrae versus nerves)

Why are there seven cervical vertebrae but eight cervical nerves?

Transverse View (x-section)

vertebral body vertebral arch vertebral foramen spinal cord

Zebra-Man

Dermatomes Each is sensory area of one spinal nerve

Peripheral Nervous System (PNS)

All nerves that leave the CNS

Two Modalities:

Somatic Visceral/Autonomic Sensory/Afferent (info. In) Motor/Efferent (commands out) Somatic Visceral/Autonomic --smooth mm. --heart --glands (hint: SAME) ParasympatheticSympathetic

Sensory Neuron

(PNS)

(CNS)

Visceral (Autonomic) Motor Neuron

(PNS)

(CNS)

Autonomic

“Targets”

All have dual sympathetic and parasympathetic innervation (more in N.S.II)