Spinal Cord

Question 0

Another name for dorsal plate?

Answer 0

Alar Plate

Question 1

What tissue does the spinal cord develop from

Answer 1

Ectoderm (neuroectodern/neuroepithelium)

Question 2

Another name for Ventral Plate

Answer 2

basal Plate

Question 3

The Ventral horn controls which type of impulses?

Answer 3

Motor

Question 4

The dorsal horn controls what type of impulses?

Answer 4

Sensory

Question 5

Everything happening dorsally has to do with

Answer 5

afferent (effect)

Question 6

Everything happening ventrally has to do with

Answer 6

efferent (response)

Question 7

Where do sensory neurons arise from

Answer 7

The Neural Crest cells

Question 8

What are the main enlargements of the spinal cord?

Answer 8

Cervical and lumbar

Question 9

How many pairs of spinal nerves are there?

Answer 9

31 pairs

Question 10

At 3 months old what can be said about the CNS from a development standpoint

Answer 10

Cervical and lumbar enlargements are visible. Spinal cord portions of CNS are well-distinguished from brain and brainstem regions

Question 11

The spinal cord can be divided into four regions. What would those be?

Answer 11

Cervical, Thoracic, Lumbar, Sacral

Question 12

what are the associated structures and functions of the Cervical Region?

Answer 12

Cervical Enlargement: Cervical Plexus and Brachial Plexus

Question 13

What are the associated structures and functions of the Thoracic region

Answer 13

Thoracic sympathetic outflow, intercostal nerves

Question 14

What are the associated structures and functions of the lumbar region

Answer 14

Lumbar sympathetic outflow, Lumbosacral enlargement: Lumbar plexus and Sacral Plexus.

Question 15

What are the associated structures and functions of the sacral region?

Answer 15

Sacral parasympathetic outflow.

Question 16

Riddle me this…. What are the meningeal coverings called?

Answer 16

1. Dura Mater
2. Arachnoid Mater
3. Pia Mater with the denticulate ligaments and filum terminalis

Question 17

What are the spaces in the spinal cord named?

Answer 17

1. Subdural Space
2. Subarachnoid Space
3. Epidural Space

Question 18

What are the associated process of the spinal cord?

Answer 18

1. Anterior Rootlets
2. Posterior rootlets
3. Spinal Nerve

Question 19

What are denticulate ligaments?

Answer 19

Lateral projections of pia mater that attach to inside of the dura mater and help anchor the spinal cord within the dural sac

Question 20

What is the filum terminalis?

Answer 20

A inferior projection of Pia Mater directly off the tip of the spinal cord into the sacral canal.

Question 21

What is a ganglion?

Answer 21

A cluster of neuron cell bodies that is outside of the CNS

Question 22

Of the spinal cord processes the spinal nerve process can be divided into 4 areas. NAME THEM!

Answer 22

Anterior ramus, Posterior ramus, Gray rami rami communicantes, White rami communicantes

Question 23

What is the Conus medularis?

Answer 23

The end of the spinal cord proper.

Question 24

What is the Cauda equina?

Answer 24

Well, it looks like a horses tail and it is the nerve rootlets that come of the end of the spinal cord.

Question 25

How many pairs of spinal nerves are their for each vertebral region?

Answer 25

Cervical 1-8, thoracic 1-12, lumbar 1-5, sacral 1-5, coccygeal 1.

Question 26

What do we have 8 cervical spinal nerves

Answer 26

we have a pair that comes out directly below the occipital bone in between the atlas and the first vertebral segment.

Question 27

Dorsal root of the spinal cord controls what.....

Answer 27

Sensory

Question 28

Ventral root of the spinal cord controls what...

Answer 28

Motor

Question 29

The ventral and dorsal ramus of the spinal nerve have both...

Answer 29

sensory and motor

Question 30

What is the term used for general somatosensory?

Answer 30

Exteroception

Question 31

What is the term used for visceral or referred sensory?

Answer 31

Interoception. example nausea

Question 32

What type of sensory to you get from the nerve endings in joints?

Answer 32

proprioception, they help your body understands where it is in space.

Question 33

What are dermatomes

Answer 33

areas of skin innervated by the sensory fibers of a single nerve root

Question 34

What is a myotome?

Answer 34

a group of muscles that is primarily innervated by the motor fibers of a single nerve root.

Question 35

What are the three main ways in which spinal nerves are distributed in the body?

Answer 35

1. Intercostal Nerves (anterior rami) 2. dorsal Rami (back muscles and skin) 3. Spinal Nerve plexuses (anterior rami)