Neuroscience: Fundamentals for Rehab (NSU) Chapter 1 & 2
Study online at https://quizlet.com/_b00oui
Functional unit of nervous system; consisting of a nerve
Neuron
cell body, dendrites, axon.
- Cell body
What are the primary parts of a neuron? - Dendrites
- Axons
types of neurons afferent neurons, efferent neurons, (Interneurons?)
Axons that carry information *toward* the CNS
Afferent Neurons
An afferent axon transmits information to the CNS when
Afferent Neurons Example
the hand touches an object
Axons carry information *away* from the CNS.
Efferent Neurons
Efferent axons carry motor commands from the CNS to
Efferent Neurons Example
skeletal muscles
CNS neurons that internally communicate and intervene
Interneurons between the sensory inputs and motor outputs. Process
information locally or conveying info short distances.
Whitish nervous tissue of the CNS consisting of axons and
White matter
myelin. Convey information *AWAY* from the cell body.
Tract, lemniscus, fasciculus, column, peduncle, or cap-
A bundle of myelinated axons that travel together in the
sule.
CNS is called a _______?
(Will look at each of these later on)
, Neuroscience: Fundamentals for Rehab (NSU) Chapter 1 & 2
Study online at https://quizlet.com/_b00oui
Areas with large proportion of myelin appear white bc of
High fat content of myelin
the _____?
Primarily cell bodies in which information is integrated.
Gray Matter
Includes *Ganglia, Nuclei, or Cortex*
Information is integrated in __________? Gray matter
A division of the nervous system consisting of all nerves
Peripheral Nervous System (PNS)
that are *not* encased in the vertebral column or skull.
- Axons
Peripheral Components, Somatic Nervous System - Sensory nerve endings
- Glial cells
- Entire neurons,
- Sensory endings, -
- Synapses
Peripheral Components, Autonomic Nervous System
- Ganglia
- Glia
+ Sympathetic & Parasympathetic
Three Regions
- Spinal
Central Nervous System (CNS): - Brainstem & Cerebellar
- Cerebrum
*Encased in bone*
Cerebral Region Diencephalon and Cerebral Hemispheres
- Longitudinal fissures divide the two cerebral hemi-
spheres
Cerebrum (Cerebral Hemispheres)
- Surfaces of the hemispheres are marked by rounded
elevations called *gyri* and grooves called *sulci*
Six lobes:
1. Frontal
2. Parietal
Study online at https://quizlet.com/_b00oui
Functional unit of nervous system; consisting of a nerve
Neuron
cell body, dendrites, axon.
- Cell body
What are the primary parts of a neuron? - Dendrites
- Axons
types of neurons afferent neurons, efferent neurons, (Interneurons?)
Axons that carry information *toward* the CNS
Afferent Neurons
An afferent axon transmits information to the CNS when
Afferent Neurons Example
the hand touches an object
Axons carry information *away* from the CNS.
Efferent Neurons
Efferent axons carry motor commands from the CNS to
Efferent Neurons Example
skeletal muscles
CNS neurons that internally communicate and intervene
Interneurons between the sensory inputs and motor outputs. Process
information locally or conveying info short distances.
Whitish nervous tissue of the CNS consisting of axons and
White matter
myelin. Convey information *AWAY* from the cell body.
Tract, lemniscus, fasciculus, column, peduncle, or cap-
A bundle of myelinated axons that travel together in the
sule.
CNS is called a _______?
(Will look at each of these later on)
, Neuroscience: Fundamentals for Rehab (NSU) Chapter 1 & 2
Study online at https://quizlet.com/_b00oui
Areas with large proportion of myelin appear white bc of
High fat content of myelin
the _____?
Primarily cell bodies in which information is integrated.
Gray Matter
Includes *Ganglia, Nuclei, or Cortex*
Information is integrated in __________? Gray matter
A division of the nervous system consisting of all nerves
Peripheral Nervous System (PNS)
that are *not* encased in the vertebral column or skull.
- Axons
Peripheral Components, Somatic Nervous System - Sensory nerve endings
- Glial cells
- Entire neurons,
- Sensory endings, -
- Synapses
Peripheral Components, Autonomic Nervous System
- Ganglia
- Glia
+ Sympathetic & Parasympathetic
Three Regions
- Spinal
Central Nervous System (CNS): - Brainstem & Cerebellar
- Cerebrum
*Encased in bone*
Cerebral Region Diencephalon and Cerebral Hemispheres
- Longitudinal fissures divide the two cerebral hemi-
spheres
Cerebrum (Cerebral Hemispheres)
- Surfaces of the hemispheres are marked by rounded
elevations called *gyri* and grooves called *sulci*
Six lobes:
1. Frontal
2. Parietal
