Semester Iii - Neuroanatomy - Spinal Cord

Front 1

At which spinal level(s) is the lateral gray column present?

Back 1

thoracic lumbar region, sacral 1-3

Front 2

The medial group of the anterior column supplies which muscles?
where is it present?

Back 2

Skeletal muscles of neck, trunk, intercostal and abdominal

Front 3

The central group of the anterior column supplies which muscles? where is it present?

Back 3

Phrenic Nucleus - supplies diaphragm
Accessory Nucleus - Sternocleidomastoid, trapezius.

Upper 5 or 6 cervical segments

Front 4

The lateral group of the anterior column supplies which muscles? where is it present?

Back 4

Skeletal muscles of the limbs

Cervical and lumbar segments

Front 5

The Substantia Gelatinosa group of the posterior gray column is composed of what type of cells? what does it receive?

Back 5

Golgi type II

Temperature, Pain, Touch

(TmPTchions)

Front 6

The Nucleus Proprius of the Posterior Gray Matter receives fibers from?

At which spinal level(s) is it present?

Back 6

Large nerve cells, bulk of dorsal horn

Position, Two-point discrimination, Vibration

(PTV)

It is present throughout spinal cord

Front 7

What afferents does Nucleus Dorsalis aka Clark's Column, of the Posterior Gray Matter receives?

Where is it present?

Back 7

Proprioceptive endings; neuromuscular spindles, tendon spindles

8C - 4L

Front 8

At which level is the visceral afferent nucleus present?

Back 8

1T - 3L

Front 9

At which spinal level(s) is the intermediolateral group of cells present? what type of fibers emerge from it?

Back 9

1T-3L ; small, preganglionic sympathetic fibers

http://www.mfi.ku.dk/ppaulev/chapter6/images/fp6-1.jpg

[III], [IIV], [IX], [X] and 2S-4S ; preganglionic parasympathetic fibers

http://www.humanneurophysiology.com/images/fig-4.gif

Front 10

In the posterior white column, what are the ascending tracts, and what info do they convey?

Back 10

Fasciculus Gracilis & Fasciculus Cuneatus.

Proprioceptive, vibration, tactile discrimination. (PTV)

It recieves fibers from the Lissauer's

Front 11

List the 7 tracts of the Lateral White Column

Back 11

1-Post.SpinoCerebellar Tract
2-Anterior SpinoCerebellar Tract
3-Lateral SpinoThalmic Tract
4-SpincoTectal Tract
5-SpinoReticular Tract
6-SpinoOlivary Tract
7-Posterolateral Tract (Lissauer's)

Front 12

Function of the Poster SpinoCerebellar Tact?

Back 12

Aids cerebellar control in voluntary movements

Proprioceptive, Touch & Pressure

Front 13

Function of the Anterior SpinoCerebellar Tract?

Back 13

Aids cerebellar control in voluntary movements

Proprioceptive, Touch & Pressure

Front 14

Function of the Lateral Spinothalmic Tract?

Back 14

Pain & Temp

Front 15

Function of the SpinoTectal Tract?

Back 15

Spinovisual reflexes

Front 16

Function of Posterolateral Tract of Lissauer?

Back 16

(ascending)

1st order neurons enter the posterior horn and divide into ascending and descending branches. After traveling two of three segrents they synapse with the posterior gray column, including Sub,Gelatinosa.

Neurotransmitter, Substance P, is present at these synapses.

Front 17

Function of SpinoReticular Tract?

Back 17

(ascending)

wakefulness

(cerebrum has to do with awareness)

intact reticular formation with a damaged cerebrum = persistent vegetative state.

Front 18

Function of SpinoOlivary Tract?

Back 18

(ascending)

Conveys information from cutaneous and proprioceptive organs.

Front 19

Function of the Anterior White Column's Anterior Spinothalmic Tract?

Back 19

(ascending)

Tactile and pressure sensibility?

Front 20

List the Descending tracts of the Posterior White Column

Back 20

1-Lateral CorticoSpinal
2-RubroSpinal
3-Lateral RecticuloSpinal
4-Descending Autonomic
5-OlivoSpinal

Front 21

Lateral CorticoSpinal Tract is involved with....

(Lateral White Column)

Back 21

Voluntary Motor functions

Front 22

Lateral Rubrospinal Tract is involved with....

(Lateral White Column)

Back 22

coveys impulses for muscular activity

Front 23

Lateral Reticulospinal Tract is involved in...

(Lateral White Column)

Back 23

muscular activity

Front 24

Descending Autonomic fibers are involved in...

(Lateral White Column)

Back 24

Autonomic Visceral functions

Front 25

List the Descending tracts of the Anterior White Column

Back 25

1-Anterior CorticoSpinal Tract
2-VestibuloSpinal Tract
3-TectoSpinal Tract
4-ReticuloSpinal Fibers

Front 26

What is Dura Mater?

What is the Extradural Space?

Back 26

Dura Mater is dense membrane enclosing the spinal cord and Cauda Equina. Continuous above the foramen magnum with the dura mater of brain. Inferiorly it ends at S2 (filum terminalis).

Extradural Space separates it from the vertebral canal

Front 27

What is Arachnoid Mater?

What is the Subarachnoid Space?

Back 27

A delicate impermeable membrane. Continuous with AS of brain. Ends at S2 (filum terminalis).

Subarachnoid Space separates it from the pia mater, its is filled with cerebrospinal fluid.

Front 28

What is Pia Mater?

How does it connect to the Arachnoid Mater?

Why does you mom hate you?

Back 28

The Pia Mater is a vascular layer the adheres closely to the Spinal Cord.

Lateral thickenings, Ligamentum Denticulatum, adhere to the arachnoid space, thus suspending the spinal cord in CSF.

Front 29

What is CSF? where is it formed? where is it reabsorbed?

Back 29

Clear, colorless fluid.Contains less Glu that blood, proteins, chloride, has WBCs. Enters subarachnoid space through the 3 foramina on the roof of the 4th ventricle.

Formed by the choroid plexus within all 4 ventricles. Small amounts also produced by ependymal cells lining ventricles.

Absorbed into the blood stream by the arachnoid villi

Front 30

List the descending tracts of anterior white column

Back 30

1-Reticulospinal
2-Vestibulospinal
3-Anterior Corticospinal
4-Tectospinal