CH 12: Spinal Cord (Final Exam)

Question 1

Where is the Spinal Cord Located?

Answer 1

• In Vertebral FORAMEN

Question 2

Where does the Spinal Cord Begin and End?

Answer 2

Begin: FORAMEN Magnum of Occipital bone
End: Conus Medullaris

Question 3

Where does CSF collect within the Spinal Cord (SC) ?

Answer 3

Below L3

Question 4

The Cauda Equina is only for what roots?

Answer 4

Lumbar & Sacral

Question 5

What structure of the SC is a bundle of spinal nerve roots from the Conus Medullaris?

Answer 5

Cauda Equina

Question 6

The Cauda Equina is considered as ______ tissue?

Answer 6

• Nerve

Question 7

The Filum Terminale is considered as ____ Tissue?

Answer 7

Connective

Question 8

What structure of the SC has the Pia mater extending to the coccyx & anchors the SC?

Answer 8

Filum Terminale

Question 9

What are the 3 Meninges of the Brain and SC?

Answer 9

• Dura Mater, Arachnoid Mater, & Pia Mater

Question 10

The Pia Mater is Homologus to ___?

Answer 10

Visceral layer

Question 11

Dura Mater is Homologous to ____?

Answer 11

Parietal Layer

Question 12

What are the structures of the SC?

Answer 12

• Brian & SC meninges, Epidural Space, Cerebral Spinal Fluid

Question 13

What are the Brain & SC Meninges listed from Outside to inside

Answer 13

• Dura Mater, Arachnoid Mater, Pia Mater

Question 14

Where can CSF be found in the SC?

Answer 14

• Subarachnoid space

Question 15

What structure of the SC is between the Vertebrae & Spinal Dura Mater & Considered as a cusion of fat?

Answer 15

Epidural Space

Question 16

What space of the SC is used for Epidural Anesthesia?

Answer 16

• Epidural Space

Question 17

What penetrates the dura mater & arachnoid mater?

Answer 17

CSF

Question 18

What surrounds the Brain and SC?

Answer 18

CSF

Question 19

Grey Matter of the SC is ?

Answer 19

On the inside

Question 20

White Matter of the SC is on the ?

Answer 20

Outside

Question 21

What matter of the SC resembles a Butterfly or the letter H?

Answer 21

Gray Matter

Question 22

What does the Dorsal Horn contain?

Answer 22

interneurons

Question 23

What is the function of the Dorsal Horn?

Answer 23

Receives sensory input from sensory Neuron

Question 24

What Horn contains Motor Neurons?

Answer 24

Ventral Horn

Question 25

What is the function of Motor Neurons ?

Answer 25

-to exit the SC

Question 26

Both Dorsal and Ventral horns are within ___?

Answer 26

Grey Matter

Question 27

Where are the Dorsal and Ventral Root located?

Answer 27

Within Vertebral Foramen

Question 28

What root contain Sensory Fibers/ Neurons?

Answer 28

Dorsal Root

Question 29

What Root of the SC contain Somatic & Autonomic Neurons ( Motor Fiber) ?

Answer 29

Ventral Roots

Question 30

What is the function of the Dorsal Root?

Answer 30

Input to SC

Question 31

What root gives output to the Peripheral Body?

Answer 31

Ventral Root

Question 32

Each Spinal Nerve connects to spinal cord Via ______?

Answer 32

Ventral & Dorsal Nerve Roots

Question 33

Both Ventral & Dorsal Nerve Roots?

Answer 33

Untie; forming spinal nerves and intervertebral foramina

Question 34

What is the function of Gray Commissure?

Answer 34

- Encloses Central Canal by 4th ventricle | - Connects Masses of Gray Matter

Question 35

Can a vegetative patient perform stretch reflex?

Answer 35

Yes; only spinal cord is required ( not brain)

Question 36

What reflex requires Grey Matter ONLY?

Answer 36

Stretch Reflex

Question 37

What matter innervates skeletal muscles by SOMATIC NERVES

Answer 37

- Gray Matter

Question 38

What matter innervates SMOOTH & CARDIAC muscles by AUTONOMIC NERVEs?

Answer 38

Gray Matter

Question 39

What Matter receives sensory information from peripheral ( mainly in trunk region)?

Answer 39

Gray Matter

Question 40

What is the the function of White matter ?

Answer 40

Communicates to brain by Nerve Tracts allowing communication between Brain and SC

Question 41

What matter is required for Plantar Reflex?

Answer 41

- Grey matter | - Mostly White Matter!!

Question 42

What is the direction of the Ascending sensory Tract & what side of the SC is it on?

Answer 42

- Up; Dorsal Side

Question 43

The Descending Motor Tract goes ____ and is on the _______ side of the SC?

Answer 43

- Down ; Ventral Side