Chapter 16: The Spinal Cord Flashcards
The regions of the spinal cord are… (just focus on first 4)
- Cervical
- Thoracic
- Lumbar
- Sacral
- Coccygeal
Spinal cord enlargements are…
areas located in the cerical and lumbosacral regions of the spinal cord in which there are just simply more neuron cell bodes in those areas simply because of the neural demand (amount of nerves needed) to properly innervate the areas of the upper and lower body. (You need lots of nerves to use your hands and legs).
The tapering end (usually at the level of the first lumbar vertebra) that is the inferior end of the spinal cord is known as…
Conus medullaris
The nerve roots that project inferiorly from the spinal cord are known as the…
cauda equina
Identify 1 and 2 in the photo
- Conus medullaris
- Cauda Equina
The film strand of pia matter, located within the cauda equina, which helps anchor the conus medullaris to the coccyx is known as the…
Filum terminale
Identify 1-3
- Conus medullaris
- Cauda Equina
- Filum Terminale
The meninges of the spinal cord from superficial to deep are…
- Spinal dura mater
- Spinal arachnoid matter
- Subarachnoid space
- Spinal pia matter
*just superficial to the spinal dura mater is the epidural space*
Identify 1-4
- Spinal dura mater
- Spinal arachnoid mater
- Subarachnoid space
- Spinal pia matter
The spinal cord is protected and encapsulated by protective layers that are continuous with the cranial meninges known as..
Spinal cord meninges
The space which lies between the dura mater and the periosteum covering the inner walls of the vertebra that houses areolar connective tissue, adipose connective tissue, and blood vessels is known as..
Epidural Space
CSF is found within what SPACE?
Subarachnoid space
Correctly label the spaces 1-3
- Epidural Space
- Subdural space
- Subarachnoid space
Number 1 and 2 are indicating what types of matter (white or gray)?
- White
- Gray
Lateral horns of gray matter are only present in what portion of the spinal cord?
T1-L2
Gray matter contains various neuron cell bodes known as…
Nuclei
Correctly identify 1-3 (horns)
- Dorsal Horn
- Lateral Horn (only in T1-L2)
- Ventral Horn
Correctly identify 1-2
- Gray commissure
- Central Canal
This picture is concerned with the white matter of the spinal cord. Identify 1-6
- Posterior median sulcus
- Lateral Funiculus
- Anterior Median Fissure
- Ventral Funiculus
- Anterior (or white) commissure
- Dorsal Funiculus
identify 1-4
- Posterior Funiculus
- Lateral Funiculus
- Anterior Funiculus
- Anterior median fissure
bundles of axons (remember this is white matter) carrying specific types of information from a common origin to a common destination are known as…
White matter Tracts
Tracts of the spinal cord can be divided into two main categories…
Motor and Sensory.
The axons of sensory neurons and the cell bodies of interneurons are housed within what horn of the spinal cord?
Posterior horn
The horn which primarily houses the cell bodies or somatic motor neurons that innervate skeletal muscle is…
Anterior horns
Why do the lateral horns only appear in T1-L2?
The lateral horns are an extra structure of those vertebrae because they contain the cell bodies of autonomic motor neurons which innervate cardiac muscle, smooth muscle, and glands.
White matter of the spinal cord is partitioned into three regions that resemble columns known as…
Funiculus (Funiculi)
