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Study sets matching "reflexes spinal nerves"

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Study sets matching "reflexes spinal nerves"

18 terms
spinal nerves and spinal reflexes
spinal nerve components
first branch of the spinal n
dorsal ramus
cellular details of spinal nerves and…
dorsal root--dorsal root ganglion... ventral root... together they…
dorsal primary ramus... ventral primary ramus
goes to the back ... but small branches;
interneuron (entirely in the CNS )
spinal nerve components
dorsal root--dorsal root ganglion... ventral root... together they…
first branch of the spinal n
dorsal primary ramus... ventral primary ramus
53 terms
SPINAL CORD, SPINAL NERVES, AND REFLEXES
Gray Matter
White Matter
Conus Medullaris
Intervertebral Foramina
neuron cell bodies, unmyelinated axons, dendrites, and glia
myelinated neuron processes and glia
where the spinal cord ends in a cone-shaped region
where spinal nerves pass through
Gray Matter
neuron cell bodies, unmyelinated axons, dendrites, and glia
White Matter
myelinated neuron processes and glia
spinal cord, spinal nerves, and spinal reflexes
sensory (afferent)
input from the head and neck
sensory input
input
input from peripheral organs travels to the central nervous s…
enter directly via cranial nerves
other sensory input enters the spinal cord via spinal nerves
some input is conveyed along the spinal cord to the brain and…
sensory (afferent)
input from peripheral organs travels to the central nervous s…
input from the head and neck
enter directly via cranial nerves
36 terms
Nerves/Spinal Nerves/Reflexes
Nerves & structures (9)
location/function of cranial nerve
function/location of endoneurium
function/location of epineurium
cranial nerve, endoneurium, epineurium, fascicle, nerve, peri…
12 pairs of nerves in the brain; control various functions of…
a layer of delicate connective tissue around the myelin sheat…
limits stretching; PERIPHERAL NERVES
Nerves & structures (9)
cranial nerve, endoneurium, epineurium, fascicle, nerve, peri…
location/function of cranial nerve
12 pairs of nerves in the brain; control various functions of…
21 terms
SPINAL CORD, SPINAL NERVES, REFLEXES
anterior horns of gray mater
posterior horns of gray mater
lateral horn of gray mater
posterior column of white mater
anterior horns of gray mater
posterior horns of gray mater
41 terms
Spinal Cord, Spinal Nerves, & Reflexes
Tracts
Conus Medullaris
Cauda Equina
Cervical Enlargement
large bundles of axons which carry motor information and sens…
lower extremity of the spinal cord
bundles of spinal nerves and spinal nerve roots
Tracts
large bundles of axons which carry motor information and sens…
Conus Medullaris
lower extremity of the spinal cord
27 terms
Spinal Nerves and Reflexes
Intervertebral foramina
MIxed
Anterior Root
Posterior Root
Where all of the spinal nerves pass through
All of the spinal nerves are
(After split) Carries axons of motor neurons that synapse in…
(After split) Carries axons of sensory neurons that synapse i…
Intervertebral foramina
Where all of the spinal nerves pass through
MIxed
All of the spinal nerves are
38 terms
spinal cord, spinal nerves, and reflexes
conus medullaris
spinal nerves
Cervical enlargements
Lumbar enlargements
the ending of the spinal cord
there are 31 pairs, carry motor (efferent) and sensory (affer…
corresponds with the attachments of the large nerves which su…
widened area of the spinal cord that gives attachment to the…
conus medullaris
the ending of the spinal cord
spinal nerves
there are 31 pairs, carry motor (efferent) and sensory (affer…
42 terms
Spinal Cord, Spinal Nerves, and Reflexes
Large bundles of axons.
Cone-shaped end of the Spinal Cord. Fo…
Group of nerves running from the lower…
Anterior Horns of Gray Matter
Tracts
Conus Medullaris
Cauda Equina
Large bundles of axons.
Tracts
Cone-shaped end of the Spinal Cord. Fo…
Conus Medullaris
30 terms
Spinal nerves and reflexes
Spinal nerves
dorsal ramus
ventral ramus
meningeal branch
31 pairs of nerves arising from the spinal cord; 8 cervical,…
innervates muscles and joints in that region of the spine and…
travel anteriorly to supply muscles of upper and lower limbs,…
This division of a spinal nerve reenters the vertebral cavity…
Spinal nerves
31 pairs of nerves arising from the spinal cord; 8 cervical,…
dorsal ramus
innervates muscles and joints in that region of the spine and…
42 terms
Spinal Cord, Spinal Nerves, and Reflexes
Large bundles of axons.
Cone-shaped end of the Spinal Cord. Fo…
Group of nerves running from the lower…
Anterior Horns of Gray Matter
Tracts
Conus Medullaris
Cauda Equina
Large bundles of axons.
Tracts
Cone-shaped end of the Spinal Cord. Fo…
Conus Medullaris
20 terms
Spinal Nerves and Reflexes
31, 8, 12, 5, 5, 1
below
above
nerve
there are ____ pairs of spinal nerves in the PNS. ___ cervica…
cervical spinal nerves are named for the vertebrae ____ them.
of spinal nerves other than cervical are named for the verteb…
a large bundle of axons in the PNS
31, 8, 12, 5, 5, 1
there are ____ pairs of spinal nerves in the PNS. ___ cervica…
below
cervical spinal nerves are named for the vertebrae ____ them.
59 terms
Spinal Cords, Spinal Nerves, and Reflexes
Nerve Fibers
Myelin Sheath
Endoneurium
Perineurium
Think of the axon
Nerve Fibers
Think of the axon
Myelin Sheath
70 terms
Spinal Cord, Nerves and Reflexes
Gray Matter
sensory/motor nuclei
white matter
Enlargements
Contains nuclei
somatic & visceral
contains nerve tracts
caused by amount of gray matter in segment
Gray Matter
Contains nuclei
sensory/motor nuclei
somatic & visceral
40 terms
Spinal cord, spinal nerves and reflexes
functions of spinal cord
conduction
Neural integration
Locomotion
conduction, neural integration, locomotion, reflexes
one of the functions of the spinal cord that conducts info fr…
spinal neurons receives info, combines info with other info c…
central pattern generations coordinate movement in spinal cor…
functions of spinal cord
conduction, neural integration, locomotion, reflexes
conduction
one of the functions of the spinal cord that conducts info fr…
39 terms
Spinal Cord, Nerves and Reflexes
Epidural space
dural sheath
arachnoid mater
subarachnoid space
Epidural space
dural sheath
28 terms
Spinal Cord & Spinal Nerves (and reflexes!)
Spinal cord
Cuada Equina
Filum Terminale
Conus Medullaris
Part of CNS, inside vertebrae, ends at L2
"Horses tail", Nerves the come at end of spinal cord.
Anchors spinal cord to coax.
Cone at end of spinal cord.
Spinal cord
Part of CNS, inside vertebrae, ends at L2
Cuada Equina
"Horses tail", Nerves the come at end of spinal cord.
62 terms
Spinal nerves and somatic reflexes
PNS
Ganglia
Motor or Efferents division
Sensory or afferent division
all nervous tissue outside of the CNS, includes cranial and s…
clusters of cell bodies in PNS
which innervates muscle cells and glands
which innervates the skin, joints, special sensory organs, an…
PNS
all nervous tissue outside of the CNS, includes cranial and s…
Ganglia
clusters of cell bodies in PNS
70 terms
Spinal Cord, Spinal Nerves, And Reflexes
Neural Tube of Embryo
Gray Matter
White Matter
tracts
Gives rise to brain and spinal cord. anterior end enlarges an…
Neural cell bodies, unmyelinated axons, dendrites, and glia.…
Myelinated neuron processes and glia. Located in superficial…
large bundles of axons which carry motor function and sensory…
Neural Tube of Embryo
Gives rise to brain and spinal cord. anterior end enlarges an…
Gray Matter
Neural cell bodies, unmyelinated axons, dendrites, and glia.…
47 terms
Spinal cord, nerves and reflexes
Spinal cord is divided into right and…
Segments
Diagram of spinal cord
Meninges
anterior median fissure= deep groove... posterior median sulcus…
(S.C) (V.C)... C- 8 C-7... T- 12 T- 12... L- 5 L- 5... S- 5 S- 5... C- 1 C-1…
Specialized membranes isolate brain and spinal cord from surr…
Spinal cord is divided into right and…
anterior median fissure= deep groove... posterior median sulcus…
Segments
(S.C) (V.C)... C- 8 C-7... T- 12 T- 12... L- 5 L- 5... S- 5 S- 5... C- 1 C-1…
85 terms
Spinal Cord, Spinal Nerves, and Reflexes
what does the gray matter contain?
what does white matter contain?
where is the gray matter located in th…
where is the white matter located in t…
neuron cell bodies, unmyelinated axons, dendrites, and glia
myelinated neuron processes and glia
it deep regions in the center
superficial regions of the spinal cord
what does the gray matter contain?
neuron cell bodies, unmyelinated axons, dendrites, and glia
what does white matter contain?
myelinated neuron processes and glia
Spinal cord, spinal nerves, and reflexes
Conus Medullaris (Medullary cone)
Cauda Equina
The spinal cord connects directly to w…
What is the cauda equina composed of?
The brain stem connects the spinal cord and the brain.
The cauda equina (Latin for "horse's tail") is a bundle of sp…
Conus Medullaris (Medullary cone)
Cauda Equina
47 terms
Spinal Cord, Nerves, and Reflexes
Conus Medullaris
Filum Terminale
Cauda Equina
Dura Mater
Terminates at the L1/2 vertebral level
helps anchor the spinal cord
L2 - S5 Segments
outer layer of spinal cord
Conus Medullaris
Terminates at the L1/2 vertebral level
Filum Terminale
helps anchor the spinal cord
31 terms
Spinal Cord, Nerves and Reflexes
White matter
Gray matter
Conus medullaris
Cauda equina
White matter
Gray matter
31 terms
Spinal Nerves, Plexuses, and Reflexes
Cervical Plexus
Brachial Plexus
Lumbar Plexus
Sacral Plexus
C1-C5
C5-C8, T1
L1-L4
L4, L5, S1-S4
Cervical Plexus
C1-C5
Brachial Plexus
C5-C8, T1
30 terms
Spinal Cord, Spinal Nerves, and Spinal Reflexes
spinal cord
spinal nerves
dorsal root
ventral root
extends from the foramen agnum to the first one or two lumbar…
there are 31 pairs which merge between vertebrae some being s…
sensory (in); carries afferent sensory axons into the spinal…
motor (out); carries motor axons from the spinal cord to the…
spinal cord
extends from the foramen agnum to the first one or two lumbar…
spinal nerves
there are 31 pairs which merge between vertebrae some being s…
13 terms
Spinal Cord, Spinal Nerves, and Reflexes: Spinal Nerves
Whats special about spinal reflexes?
Gray Matter
What types of signals enter through th…
What types of signals leave through th…
rapid response to stimuli without having to pass into or out…
of the spinal cord can also coordinate involuntary spinal ref…
Afferent
Efferent
Whats special about spinal reflexes?
rapid response to stimuli without having to pass into or out…
Gray Matter
of the spinal cord can also coordinate involuntary spinal ref…
8 terms
Spinal Cord, Spinal Nerves, and Reflexes: Spinal Nerves
Spinal nerves
Intervetrebral Formina
What are all of the spinal nerves, con…
Anterior Root
communicate between spinal cord and body
where each of the 31 pairs of spinal nerves passes through fr…
Mixed nerves
of each spinal nerves carries axons of efferent neurons whose…
Spinal nerves
communicate between spinal cord and body
Intervetrebral Formina
where each of the 31 pairs of spinal nerves passes through fr…
70 terms
Spinal Cord, Spinal Nerves and Spinal Reflexes
central nervous system
sensory receptors
effectors
spinal cord dimentions
a system containing the brain, spinal cord, spinal nerves and…
stimuli receivers that send messages to the brain or spinal c…
muscles, glands or adipose tissue that respond (move/ secrete…
length: ~45cm (18 in)... width: ~14mm (0.55 in)
central nervous system
a system containing the brain, spinal cord, spinal nerves and…
sensory receptors
stimuli receivers that send messages to the brain or spinal c…
50 terms
Spinal cord, Spinal nerves and spinal reflexes
Length of spinal cord
anterior median fissure
posterior median sulcus
cervical enlargement
18 Inches-... spinal cord begins at foramen magnum and continues…
a groove along the anterior midline of the spinal cord that i…
a shallow vertical groove dividing the spinal cord throughout…
enlargement in spinal cord in cervical region, a lot of infor…
Length of spinal cord
18 Inches-... spinal cord begins at foramen magnum and continues…
anterior median fissure
a groove along the anterior midline of the spinal cord that i…
25 terms
The spinal cord, spinal nerves, and spinal reflexes
Posterior median sulcus
Anterior median fissure
Spinal cord enlargements
Cervical enlargement
Shallow longitudinal groove along the posterior surface of th…
Deep groove along the anterior surface of the spinal cord
Segments of the spinal cord dedicated to sensory and motor co…
Supplies nerves to the shoulder and upper limbs
Posterior median sulcus
Shallow longitudinal groove along the posterior surface of th…
Anterior median fissure
Deep groove along the anterior surface of the spinal cord
8 terms
Spinal Cord, Spinal Nerves, and Reflexes
Gray Matter
White Matter
Tracts
Ascending Tracts
Neuron call bodies, unmyelinated axons, dendrites, and glia
Myelinated neurons processes and glia
Groups of axons with the same origin, terminus, and function
Carry sensory information from a lower level of the spinal co…
Gray Matter
Neuron call bodies, unmyelinated axons, dendrites, and glia
White Matter
Myelinated neurons processes and glia
16 terms
The spinal cord, spinal nerves, and spinal reflexes
Describe the meninges and spaces surro…
describe the structure and location of…
describe the spinal cord in cross sect…
define the following terms: gray commi…
...
extends from the foramen magnum to level of the first or seco…
From front to back two grooves mark the surface. The dorsal m…
-Gray commisure, joins the horns. ... -Central canal runs the le…
Describe the meninges and spaces surro…
...
describe the structure and location of…
extends from the foramen magnum to level of the first or seco…
Spinal Nerves and Reflexes
Cervical Plexus
Phrenic Nerve
Brachial Plexus
Axillary Nerve
C1-C4 some contribution from C5... Serves the skin of the head &…
Part of the Cervial Plexus (C3-C5)... Serves the diaphragm
C5-T1... Contains 5 major nerves of the upper limb
Serves structures near axilla... Deltoid & teres major muscles &…
Cervical Plexus
C1-C4 some contribution from C5... Serves the skin of the head &…
Phrenic Nerve
Part of the Cervial Plexus (C3-C5)... Serves the diaphragm
51 terms
Spinal Cord and Nerve Reflexes
Precentral Gyri
Postcentral Gyri
Where does the spinal cord begin and e…
Central Pattern Generators
Primary Motor Area
Primary Sensory area and it perceives pain, touch, pressure a…
Starts at the Foramen Magnum (Opening at the base of the skul…
Pools of neurons in the spinal cord providing alternating mov…
Precentral Gyri
Primary Motor Area
Postcentral Gyri
Primary Sensory area and it perceives pain, touch, pressure a…
86 terms
Spinal Cord, Spinal Nerves, Spinal Reflexes PQs
1) The spinal cord is part of the ____…
2) The ________ is a strand of fibrous…
86) Which of the following is not true…
85) Tina falls while climbing a tree a…
C) central
B) filum terminale
D) why you close your eyes when you sneeze
E) suffered no damage to her spinal cord.
1) The spinal cord is part of the ____…
C) central
2) The ________ is a strand of fibrous…
B) filum terminale
28 terms
Spinal Cord, Spinal Nerves, and Reflexes
Gray matter
White matter
Tracts
Spinal reflexes
...
...
...
...
Gray matter
...
White matter
...
43 terms
Spinal Nerves and Reflexes
Motor/Efferent Division
Sensory/Afferent Division
CNS
PNS
innervates muscle cells and glands
innervates the skin, joints, special sensory organs, and othe…
contains brain and spinal cord
contains somatic and autonomic nervous system
Motor/Efferent Division
innervates muscle cells and glands
Sensory/Afferent Division
innervates the skin, joints, special sensory organs, and othe…
93 terms
spinal nerves and reflexes
phrenic nerve
axillary nerve
musculocutaneous nerve
median nerve
- located in the cervical plexus... - serves the diaphragm ... - da…
- located in the brachial plexus... - serves the armpit; teres m…
- located in the brachial plexus... - serves the flexor muscles…
- located in the brachial plexus ... - serves the flexor muscles…
phrenic nerve
- located in the cervical plexus... - serves the diaphragm ... - da…
axillary nerve
- located in the brachial plexus... - serves the armpit; teres m…
27 terms
The Spinal cord, Spinal Nerves and Reflexes
1. Integration
2. Highway
3. Spinal cord
Meninges
summation of inhibitory and excitatory nerve impulses GREY MA…
for upward sensory and downward for motor travel of informati…
spinal cord reflexes
3 coverings around the brain and spinal cord
1. Integration
summation of inhibitory and excitatory nerve impulses GREY MA…
2. Highway
for upward sensory and downward for motor travel of informati…
Spinal cord, spinal nerves and reflexes
spinal nerves
brain stem
vertebral column
cauda equina
yellow paired spinal nerves emerged from spinal cord
spinal cord extends from the
spinal cord is shorter than
horse tail - roots of spinal nerves extending inferior to the…
spinal nerves
yellow paired spinal nerves emerged from spinal cord
brain stem
spinal cord extends from the
34 terms
Spinal Cord, Nerves & Reflexes
Spinal Reflexes
The Adult Spinal Cord
Enlargements of the Spinal Cord
The Distal End
Spinal Reflexes ... Rapid, automatic nerve responses triggered…
The Adult Spinal Cord... About 18 inches (45cm) long ... 1/2 inch…
Enlargements of the Spinal Cord ... Caused by: ... Amount of gray…
The Distal End ... Conus medullaris: ... Thin, concial Spinal Cord…
Spinal Reflexes
Spinal Reflexes ... Rapid, automatic nerve responses triggered…
The Adult Spinal Cord
The Adult Spinal Cord... About 18 inches (45cm) long ... 1/2 inch…
5 terms
Reflexes- Spinal nerves tested
biceps reflex
triceps reflex
supinator reflex
knee reflex
c5, c6
c6, c7, c8
c5, c6 (not biceps)
l2, l3, l4
biceps reflex
c5, c6
triceps reflex
c6, c7, c8
97 terms
Chapter 13 The Spinal Cord, Nerves, and Spinal Reflexes
posterior median sulcus
anterior median fissure
enlargements of the spinal chord
cervical enlargement
shallow longitudinal groove on
a deeper groove along the anterior (ventral) surface of the s…
(of the spinal chord) where segments of gray matter is greate…
supplies nerves to the shoulder and upper limbs
posterior median sulcus
shallow longitudinal groove on
anterior median fissure
a deeper groove along the anterior (ventral) surface of the s…
12 terms
Spinal cord, nerves, & reflexes
spinal cord is continuos w/
enlargements of the Spinal cord
cervical enlargement supplies nerves to
lumbar enlargement supplies nerves to
brain
cervical & lumbar
shoulder and arms
pelvis & legs
spinal cord is continuos w/
brain
enlargements of the Spinal cord
cervical & lumbar
50 terms
The spinal cord, spinal nerves, and reflexes
Protective structures of the spinal cord
Two enlargements of the spinal cord
Conus medullaris
Filum terminale
Vertebral column... Adipose tissue in the epidural space... Dura ma…
Cervical... Lumbar
End of the spinal cord
Longitudinal support
Protective structures of the spinal cord
Vertebral column... Adipose tissue in the epidural space... Dura ma…
Two enlargements of the spinal cord
Cervical... Lumbar
25 terms
The Spinal Cord, Spinal Nerves, & Reflexes
Spinal cord
What 4 regions is the spinal cord divi…
Posterior (dorsal) horns
Ascending tracts
A cylinder of nervous tissue enclosed in the vertebral canal
1. Cervical region... 2. Thoracic region... 3. Lumbar region... 4. Sac…
Serve as receiving point for incoming sensory information
Carries sensory information to higher levels of the cord & th…
Spinal cord
A cylinder of nervous tissue enclosed in the vertebral canal
What 4 regions is the spinal cord divi…
1. Cervical region... 2. Thoracic region... 3. Lumbar region... 4. Sac…
22 terms
Spinal Cord, spinal Nerves, and reflexes
Spinal cord
spinal reflexes
Gray matter
spinal nerves
Belongs to the CNS. Located in the spinal cavity of the verte…
Example Knee jerk. Necessary for adaptive motor control. Musc…
_________ is a major component of the central nervous system,…
The term ______ generally refers to a mixed spinal nerve, whi…
Spinal cord
Belongs to the CNS. Located in the spinal cavity of the verte…
spinal reflexes
Example Knee jerk. Necessary for adaptive motor control. Musc…
12 terms
Spinal cord, spinal nerves, and reflexes
Gray matter
White matter
Tracts
Conus medullaris
Neuron cell bodies, unmyelinated axons, dendrites, and glia
Myelinated neuron processes and glia
Large bundles of axons which carry motor information and sens…
Ending of the spinal cord in a cone-shaped region
Gray matter
Neuron cell bodies, unmyelinated axons, dendrites, and glia
White matter
Myelinated neuron processes and glia
28 terms
spinal cord/reflexes/nerves
functions of the spinal nerves/cord
protection of the spinal cord
epidural space
dura mater
A. Spinal nerves: carries sensory information to and motor in…
-veterbral column... -meninges: 3 layered connective tissue cove…
between the vertebrae and dura mater, cushion of fat and CT
most superficial, dense irregular tissue
functions of the spinal nerves/cord
A. Spinal nerves: carries sensory information to and motor in…
protection of the spinal cord
-veterbral column... -meninges: 3 layered connective tissue cove…
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