How can we help?

You can also find more resources in our Help Center.

Study sets matching "term:grey matter = contains mostly unmyelinated fibers and cell bodies"

Study sets
Classes
Users

Study sets matching "term:grey matter = contains mostly unmyelinated fibers and cell bodies"

9 terms
Nervous System
Nerve
Multipolar neuron
Conductivity
Bipolar neuron
bundles of nerve fibers running through the PNS
contains several processes extending from the cell body
ability to transmit the impulses to other neurons, muscles, o…
contains 2 processes extending from the cell body
Nerve
bundles of nerve fibers running through the PNS
Multipolar neuron
contains several processes extending from the cell body
8 terms
Supporting Cells or Neuroglia in PNS and Difference in Terms
Schwann Cells
Satellite Cells
Nuclei
Ganglia
cover larger axons or nerve fibers in PNS; form myelin sheath…
supporting neuron cells of PNS that surround and support neur…
grey matter; collection of cell bodies in CNS
white matter; small collections of cell bodies found in PNS
Schwann Cells
cover larger axons or nerve fibers in PNS; form myelin sheath…
Satellite Cells
supporting neuron cells of PNS that surround and support neur…
18 terms
Neuron Parts
Neuron
Cell body
Processes
Dendrites
Transmits messages from one part of the body to another
Is the metabolic center of the neuron
...
Convey incoming messages toward the cell body
Neuron
Transmits messages from one part of the body to another
Cell body
Is the metabolic center of the neuron
23 terms
Nervous System
neurons
anatomic divisions
perikaryon
axon
specialized cells, not capable of regeneration
central nervous system - brain and spinal cord... peripheral ne…
soma (body of neuron) ... contains nucleus, cytoplasma... site of p…
generates and conducts action potential - one per neuron from…
neurons
specialized cells, not capable of regeneration
anatomic divisions
central nervous system - brain and spinal cord... peripheral ne…
24 terms
The Spinal Cord
extends as a solid mass
cauda equina
bulges in two places:
meninges cover
from base of brain to L1
spinal cord after L1 as a mass of fibers
cervical and lumbar regions
cord and cauda equina
extends as a solid mass
from base of brain to L1
cauda equina
spinal cord after L1 as a mass of fibers
17 terms
spinal cord landmarks, white and grey matter, spinal meningies, and spinal nerves
Cervical Enlargement
Lumbar Enlargement
Conus Medullaris
Cauda Equina
Supplies nerves to the shoulder and upper limbs
Supplies nerves to the pelvis and lower limbs
Tapered (narrowing) portion just below lumbar enlargement
- "Horses Tail"... - Grouping of nerves extending to lower regio…
Cervical Enlargement
Supplies nerves to the shoulder and upper limbs
Lumbar Enlargement
Supplies nerves to the pelvis and lower limbs
8 terms
nervous 3
synaptic cleft
myelin
myelin sheath
nuerilemma
tiny gap
protects and insulates the fibers and increases the transmiss…
encloses the axon
outermost part of the plasma membrane
synaptic cleft
tiny gap
myelin
protects and insulates the fibers and increases the transmiss…
18 terms
Nervous Anatomy
Neuron
Cell Body
Processes
Dendrites
Nerve Cell
The main body of the cell
The arms of the cells that transmit cells
Going to the cell
Neuron
Nerve Cell
Cell Body
The main body of the cell
13 terms
a&p part 2
Conduct impulses towards the cell body
conducts impulses away from the cell b…
Most neuron cell bodies are found in the
Cell bodies and unmyelinated fibers
Dendrites
axons
CNS
Gray matter
Conduct impulses towards the cell body
Dendrites
conducts impulses away from the cell b…
axons
10 terms
Spinal Cord Structures
white matter
grey matter
dorsal root
dorsal root ganglion
superficial, large numbers of myelinated and unmyelinated axo…
deep, "H" shaped, most comprised of cell bodies of neurons, n…
nerve root emanating from dorsal surface of spinal cord, cont…
contains cell bodies of sensory neurons whose axons carry inf…
white matter
superficial, large numbers of myelinated and unmyelinated axo…
grey matter
deep, "H" shaped, most comprised of cell bodies of neurons, n…
61 terms
nervous system: the brain
ganglia
grey matter of the nervous system
white matter
slide of neurons
collections of nerve cell bodies outside the CNS
nerve cell bodies and unmyelinated fibers (or processes)
myelinated axons
ganglia
collections of nerve cell bodies outside the CNS
grey matter of the nervous system
nerve cell bodies and unmyelinated fibers (or processes)
16 terms
Chapter 7 Vocabulary 25-40
Neurotransmitters
Synaptic Cleft (synaptic gap)
Synapse
Myelin Sheath
Hundreds of tiny vesicles or membranous sacs that contain che…
Axon terminal separated from the next neuron by a tiny gap
To clasp or join; functional junction
Encloses the axon
Neurotransmitters
Hundreds of tiny vesicles or membranous sacs that contain che…
Synaptic Cleft (synaptic gap)
Axon terminal separated from the next neuron by a tiny gap
6 terms
Nerve Clusters
nuclei
ganglia
tracts
Nerves
cluster of CELL BODIES in the CNS
small clusters of CELL BODIES in the PNS
bundles of nerve fibers running through the CNS
bundles of nerve fibers running through the PNS
nuclei
cluster of CELL BODIES in the CNS
ganglia
small clusters of CELL BODIES in the PNS
16 terms
3rd set of terms (anatomy)
Nuerotransmitters
Synaptic cleft (synaptic gap)
Synapse
Myelin sheath
Hundreds of tiny vesicles or membranous sacs that contain che…
Axon terminal separated from the next neuron by a tiny gap
To clasp or join. Functional junction
Encloses the axon
Nuerotransmitters
Hundreds of tiny vesicles or membranous sacs that contain che…
Synaptic cleft (synaptic gap)
Axon terminal separated from the next neuron by a tiny gap
16 terms
3rd set of terms (anatomy)
Nuerotransmitters
Synaptic cleft (synaptic gap)
Synapse
Myelin sheath
Hundreds of tiny vesicles or membranous sacs that contain che…
Axon terminal separated from the next neuron by a tiny gap
To clasp or join. Functional junction
Encloses the axon
Nuerotransmitters
Hundreds of tiny vesicles or membranous sacs that contain che…
Synaptic cleft (synaptic gap)
Axon terminal separated from the next neuron by a tiny gap
22 terms
Neuronal and spinal cord
cell body
nucleus
axon
dendrite
center of the neuron
contains dna
transmits action potentials to other neurons
receive action potential from other neurons
cell body
center of the neuron
nucleus
contains dna
65 terms
The Spinal Cord
Conus Medullaris
Filum Terminale
C4-T1
T9-T12
Tapered end of the spinal cord, below lumbar enlargement...
A fibrous extension of pia mater arising from conus medullari…
Cervical enlargement occurs at...
Lumbar enlargement occurs at...
Conus Medullaris
Tapered end of the spinal cord, below lumbar enlargement...
Filum Terminale
A fibrous extension of pia mater arising from conus medullari…
6 terms
Neuron cell body location
Grey matter
Nuclei
Ganglia
Neuroglia
Cell bodies and unmyelinated fibers
Clusters of cell bodies within the white matter of the CNS
Collection of cell bodies outside CNS
Supporting cells in the CNS. Nerve glue supporting neurons
Grey matter
Cell bodies and unmyelinated fibers
Nuclei
Clusters of cell bodies within the white matter of the CNS
8 terms
Nervous system part 4
synaptic cleft
myelin
myelin sheaths
neurilemma
axon terminal is separated from the next neuron by a tiny gap
whitish, fatty material that's covers long nerve fibers
tight coil of wrapped membranes that enclose the axon
cell cytoplasm that ends up just beneath the outermost part o…
synaptic cleft
axon terminal is separated from the next neuron by a tiny gap
myelin
whitish, fatty material that's covers long nerve fibers
8 terms
Lab Practical 3
Gyrus
Sulcus
Fissure
Grey Matter
large elevations of the brain
small indentations of the brain
large indentations of the brain
contains cell bodies of neurons... unmyelinated axons... integratio…
Gyrus
large elevations of the brain
Sulcus
small indentations of the brain
8 terms
nervous system d4
synaptic cleft
myelin
myelin sheaths
neurilemma
axon terminal is separated from the next neuron by a tiny gap
whitish, fatty material that's covers long nerve fibers
tight coil of wrapped membranes that enclose the axon
cell cytoplasm that ends up just beneath the outermost part o…
synaptic cleft
axon terminal is separated from the next neuron by a tiny gap
myelin
whitish, fatty material that's covers long nerve fibers
Lab #16 Myelination of Axons and Gray and White Matter
Contains myelinated fibers
Contains neuron cell bodies and unmyel…
Nerve fibers that are white in color a…
Nerve fibers that are gray in color
White Matter
gray matter
Myelinated fibers
Unmyelinated fibers
Contains myelinated fibers
White Matter
Contains neuron cell bodies and unmyel…
gray matter
8 terms
10.3
Neurons
Neurons
Neurons
Neurons
Vary is size and shape
Dendrites
Cell body
Axon
Neurons
Vary is size and shape
Neurons
Dendrites
8 terms
Central Nervous System
CNS
Tissues of the CNS
Gray Matter
White matter
Grey and white Matter
-Consists of unmyelinated nerve cell bodies, dendrites, and a…
Mostly myelinated axons and very few cell bodies.
CNS
Tissues of the CNS
Grey and white Matter
8 terms
Ch.7 Vocab4
Synaptic cleft
Myelin
Myelin sheath
Neurilemma
A tiny gap that separates the axon terminal from the next neu…
A whitish, fatty material that covers nerve fibers
A tight coil of wrapped membranes around axon terminal
The part of the Schwann cell, external to myelin sheath
Synaptic cleft
A tiny gap that separates the axon terminal from the next neu…
Myelin
A whitish, fatty material that covers nerve fibers
15 terms
Central Nervous System
Diencephelon
Cerebrum
Cerebral cortex
Coma
Contains the thalamus, hypothalamus, and epithalamus
The top level of the brain
Outer most region consisting of grey matter
...
Diencephelon
Contains the thalamus, hypothalamus, and epithalamus
Cerebrum
The top level of the brain
13 terms
Nervous tissue (neurons)
Cell body
Dendrites
Nerve cell
Grey matter
Axon... -transmits impulses away from the cell body... -covered by…
-fiber branches that recieve impulses from other parts of the…
Neuron
Areas of unmyelinated fibers... Ex: cerebal cortex... Central spina…
Cell body
Axon... -transmits impulses away from the cell body... -covered by…
Dendrites
-fiber branches that recieve impulses from other parts of the…
8 terms
Nervous System #4
Synaptic Cleft
Myelin
Myelin Sheath
Neurilemma
Each axon terminal is separated from the next neuron by a tin…
Most long nerve fibers are covered by a fatty material
A tight coil of wrapped membranes
External to the myelin sheath
Synaptic Cleft
Each axon terminal is separated from the next neuron by a tin…
Myelin
Most long nerve fibers are covered by a fatty material
13 terms
Nervous system 3 (Not Finished)
Spinal cord
Dorsal root ganglia
Dorsal root
Ventral roots
a major highway for the passage of sensory impulses to the br…
Contains cell bodies of sensory neurons
Contains the axons of the neurons in the _________ ______ gan…
Contains the axons of the motor neurons that go OUTto control…
Spinal cord
a major highway for the passage of sensory impulses to the br…
Dorsal root ganglia
Contains cell bodies of sensory neurons
47 terms
Anatomy nervous system 1
Sensory input
Motor output
CNS
PNS
Information gathered through stimuli
Activation of muscle/gland goes through here
Central Nervous System... Brain and spinal cord... Interpret incomi…
Peripheral Nervous System... Nerves extending from spinal cord a…
Sensory input
Information gathered through stimuli
Motor output
Activation of muscle/gland goes through here
CNS 1 : Brain
Sensory Input
Integration
Motor Output
Central nervous system (CNS)
monitoring stimuli occurring inside and outside the body
interpretation of sensory input
response to stimuli by activating effector organs
Brain and spinal cord... Integration and command center
Sensory Input
monitoring stimuli occurring inside and outside the body
Integration
interpretation of sensory input
7 terms
Unit 4 Study Guide Q5
Grey Matter
White Matter
Nerve
Axon
contains neuron cell bodies and non-myelinated nerve fibers.…
contains axons (nerve fibers), no cell bodies, and has lots o…
bundle of nerve fibers in PNS
nerve fibers
Grey Matter
contains neuron cell bodies and non-myelinated nerve fibers.…
White Matter
contains axons (nerve fibers), no cell bodies, and has lots o…
12 terms
Ch 11: Histology of Nervous Tissue: Homeostatic Imbalance
Damaged neural tissue
Myelin sheath
Myelinated sheaths
Nonmyelinated sheaths
Some viruses and bacterial toxin that damage neural tissue us…
Fatty (protein- lipoid), segmented covered nerve fibers.... Pro…
Associated ONLY with axons.
Dendrites are ALWAYS nonmyelinated.
Damaged neural tissue
Some viruses and bacterial toxin that damage neural tissue us…
Myelin sheath
Fatty (protein- lipoid), segmented covered nerve fibers.... Pro…
21 terms
NERVOUS TISSUE
Nervous System
Neurons
Central Nervous System
Peripheal Nervous System
consists of sensory, integrative, and motor regions
cells of the NS
Brain and spinal cord
Nerves
Nervous System
consists of sensory, integrative, and motor regions
Neurons
cells of the NS
54 terms
Biol 205 Nervous system
why do we need the nervous system
function of the nervous system
Sensory input
Integration
the master controlling and communication system of the body
Sensory input ,Integration, Motor output
monitoring stimuli occurring inside and outside the body
interpretation of sensory input
why do we need the nervous system
the master controlling and communication system of the body
function of the nervous system
Sensory input ,Integration, Motor output
111 terms
Nervous Systems
Sensory input
Integration
Motor output
CNS
To monitor changes occurring inside and outside the body
to process and interpret sensory input and decide if action i…
response to integrated stimuli, activates muscles or glands
central nervous system, brain and spinal cord
Sensory input
To monitor changes occurring inside and outside the body
Integration
to process and interpret sensory input and decide if action i…
13 terms
Neurons
Cell Body
Dendrites
Axons
Axon Hillock
Metabolic center
Incoming messages towards the body
Conducts messages away from body
Region of the body where axon arises from
Cell Body
Metabolic center
Dendrites
Incoming messages towards the body
10 terms
PHYSIO spinal structure
Dorsal root ganglia
Dorsal root
Ventral root
Spinal nerve
Contains cell bodies of sensory nuerons
Contains axons of dorsal root ganglia neurons
Contains axons of motor neurons
Distal from spinal nerve ... Dorsal and ventral fibers combine b…
Dorsal root ganglia
Contains cell bodies of sensory nuerons
Dorsal root
Contains axons of dorsal root ganglia neurons
9 terms
Neuro stuff
Astrocytes
Microglia
Ependymal Cells
Oligodendrocytes
Most abundant, highly branched glial cells, cling to neurons,…
Migrate toward injured neurons, Defensive (Immune) cells, Pha…
Range from squamous to columnar, may be cilated, line central…
mylein, white matter, Branched cells, wrap CNS nerve fibers,…
Astrocytes
Most abundant, highly branched glial cells, cling to neurons,…
Microglia
Migrate toward injured neurons, Defensive (Immune) cells, Pha…
53 terms
Brain Parts, Functions, and Nerves
Longitudinal Fissure
Gyri
Sulci
Fissure
Deep valley separating the left and right hemispheres
Elevated ridges
Shallow grooves between gyri
Deep valleys that sella rate large regions of the brain
Longitudinal Fissure
Deep valley separating the left and right hemispheres
Gyri
Elevated ridges
48 terms
nerve cells and nerve impulses - chapter 5
nervous system
central nervous system (CNS)
peripheral nervous system (PNS)
nerve cells (neurons)
communication network and control centre of body... - maintains…
brain and spinal cord... - controls centre of whole nerves system
receptors, muscle and glands
- basic structure of nervous system... - vary in size and shape…
nervous system
communication network and control centre of body... - maintains…
central nervous system (CNS)
brain and spinal cord... - controls centre of whole nerves system
16 terms
Nervous System Vocabulary
Integration
Neuron
Neuroglia
Axon
transmit impulses from CNS to organs
structural units of nervous system; composed of body, axon, d…
supporting cell
impulses generating & conducting region
Integration
transmit impulses from CNS to organs
Neuron
structural units of nervous system; composed of body, axon, d…
77 terms
A&P I lab exercise 10 nervous system: the brain
Nerve cell or neuron
Multipolar neuron
cell body
dendrites
the basic unit of the nervous system
consist of cell body and 2 kinds of fibers- dendrites and a s…
conduct impulses toward the nerve cell body
Nerve cell or neuron
the basic unit of the nervous system
Multipolar neuron
consist of cell body and 2 kinds of fibers- dendrites and a s…
43 terms
Bakersfield College Bio32 Chapter 11 nervous system
Central Nervous System (CNS)
Peripheral Nervous System (PNS)
Sensory (afferent) Division
Motor (Efferent) Division
Brain and spinal cord
Nerves outside of the brain and spinal cord
Nerves that carry info to the CNS, unipolar design with cell…
Nerves that carry impulses away from CNS.... Somatic and Autonom…
Central Nervous System (CNS)
Brain and spinal cord
Peripheral Nervous System (PNS)
Nerves outside of the brain and spinal cord
Ch12 CNS and PNS Neuroglia
Four types of Neuroglia
Cerebrospinal fluid
Ependymal Cells
Ependyma
1. Ependymal Cells 2. Astrocytes 3. Oligodendrocytes 4. Micro…
CSF; A clear fluid the circulates around through the brain an…
ciliated CNS neuroglia that play an active role in moving the…
Line ventricles of brain and central canal of spinal cord. Fo…
Four types of Neuroglia
1. Ependymal Cells 2. Astrocytes 3. Oligodendrocytes 4. Micro…
Cerebrospinal fluid
CSF; A clear fluid the circulates around through the brain an…
19 terms
Nervous System Terms #2
Nodes of Ranvier
White Matter
Grey Matter
Sensory/ Afferent Neurons
Gaps in the sheath or neurofibril nodes; occur at intervals (…
Regions of the brain and spinal cord containing dense collect…
Contains mostly nerve cell bodies and unmyelinated fibers
Transmit impulses from sensory receptors in the skin or inter…
Nodes of Ranvier
Gaps in the sheath or neurofibril nodes; occur at intervals (…
White Matter
Regions of the brain and spinal cord containing dense collect…
19 terms
Nervous System #2
Nodes of Ranvier
White Matter
Grey Matter
Sensory or Afferent Neurons
gaps in the sheath
dense collections of myelinated fibers; primarily fiber tracts
contains mostly nerve cells bodies and unmyelinated fibers
carry impulses FROM sensory receptors in the skin
Nodes of Ranvier
gaps in the sheath
White Matter
dense collections of myelinated fibers; primarily fiber tracts
8 terms
Lecture - N.S. / Nervous Tissue (Ch 11)
spinal nerves
ventral root
dorsal root
nerve
PNS - all are mixed nerves... arise from spinal cord... supply all…
composed of motor/efferent fibers (CNS --> PNS)... extend out to…
composed of sensory/afferent fibers... arise from the sensory ne…
a bundle of neurons
spinal nerves
PNS - all are mixed nerves... arise from spinal cord... supply all…
ventral root
composed of motor/efferent fibers (CNS --> PNS)... extend out to…
24 terms
final 2
Contains myelinated fibers
Contains neuron cell bodies and unmyel…
Nerve fibers that are white in color a…
Nerve fibers that are grey in color
white matter
grey matter
myelinated fibers
unmyelinated fibers
Contains myelinated fibers
white matter
Contains neuron cell bodies and unmyel…
grey matter
25 terms
2.2 Set #1 - Nerve Cell Anatomy & Reflex Arcs (HBS 2016-17)
Neuron
Nerve fiber
Nerve
White matter
A single nerve cell; the fundamental unit of the nervous syst…
Refers to the axon of a neuron and its myelin sheath
A bundle of neurons running through the PNS with the same ori…
CNS tissue composed of myelinated nerve fibers
Neuron
A single nerve cell; the fundamental unit of the nervous syst…
Nerve fiber
Refers to the axon of a neuron and its myelin sheath
1 of 10