Neuro ILM Intro

By kse1 | Updated: April 24, 2019, 11:47 p.m.

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Nervous Systems Pre-matric ILM for Todd Vanderah, PhD, Block Director, using his text. Graphics from pixabay.com and other sources, all identified as public domain. Instructional design by Karen Spear Ellinwood, PhD, JD, EdS. This is a segment of the entire ILM that introduces the learning objectives, the CNS and PNS, and the basic cell types.

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Pre-matric ILM
Todd Vanderah, PhD
Block Director
Nervous System ILM
We want you to engage in critical, analytical thinking and problem-solving.
Describe
Identify & Locate
Differentiate
Compare & Contrast
You will...
LEARNING OBJECTIVES
The things we want you to know or be able to do by the time you complete this ILM.
LO #1: DESCRIBE
The different cell types in the CNS and PNS

The functions of each of these components
The major subdivisions of the CNS, and the principal components of each.
LO #2: IDENTIFY/LOCATE
IDENTIFY which terms refer to a collection of neuronal cell bodies or a collection of axons: fasciculus, lemniscus, and peduncle
LOCATE motor, somatosensory, auditory and visual cortex
LO #3:  DIFFERENTIATE
The boundaries of the cerebral lobes 
White matter, gray matter, nucleus, ganglion, cortex, and tract. 
LO #4: COMPARE & CONTRAST
The motor neurons that control skeletal, smooth and cardiac muscles, as well as glands

The repair mechanisms available in the adult central and peripheral nervous systems.
Central Nervous System
Brain & Spinal Cord
Forebrain
Cerebellum
Brain stem
The Peripheral Nervous System (PNS) consists of spinal and cranial nerves that branch into virtually all parts of the body, conveying messages to and from the central nervous system.
PNS
The brain has multiple subdivisions...
The Brain
• The 2 cerebral hemispheres are separated by the longitudinal fissure. 
The Forebrain
• Is composed of two massive cerebral hemispheres and the diencephalon
The Diencephalon...
A relay station for information to the cerebral cortex
Thalamus
Hypothalamus
Controls the autonomic nervous system, releasing hormones and many aspects of drive-related behavior
Epithalamus
Composed of the pineal gland and habenula
Hypothalamus
Thalamus
The Brainstem
3
1
2
4
5
Part of the CNS
Exclusive of cerebellum
Between forebrain  & spinal cord
Subdivided into... 
Contains most of the...
Midbrain
Pons &
Medulla
Cranial nerve nuclei & long tracts to/from cerebrum
cerebellum
Pons
Medulla oblongata
Cerebellum
Helps control/adjust and coordinate movements (like the basal ganglia)
Interconnected with many other parts of the CNS
The Principal Cellular Elements of the 
Nervous System
Cell Types
There are two general categories of cells in the nervous system:
1
2
Neurons
Glial Cells (glia)
Glial Cells (Glia)
Neuron
Neurons 
Essential Components
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!
!
Tapering dendrites
Single cylindrical axons
Emerging from cell body

Neuro ILM Intro

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