internal anatomy of spinal cord

Question 1

central canal

Answer 1

cerebrospinal fluid-filled space that runs longitudinally through the length of the entire spinal cord

Question 2

spinal gray matter

Answer 2

posterior horn - one of the three grey columns of the spinal cord. It receives several types of sensory information from the body, including fine touch, proprioception, and vibration.
lateral horn - part of the sympathetic nervous system and receives input from brain stem, organs, and hypothalamus
anterior horn - contains motor neurons that affect the skeletal muscles.

Question 3

Meninges

Answer 3

line the skull and vertebral canal and enclose the brain and spinal cord.
Pia Mater - innermost membrane enveloping the brain and spinal cord
Arachnoid Mater - derivative of the neural crest mesectoderm in the embryo
Dura Mater - the tough outermost membrane enveloping the brain and spinal cord.

Question 4

anterior median fissure

Answer 4

A spinal nerve with its anterior and posterior roots

Question 5

posterior root

Answer 5

Nerve fibres with the ventral root then combine to form a spinal nerve

Question 6

anterior root

Answer 6

In anatomy and neurology, the ventral root or anterior root is the efferent motor root of a spinal nerve.

Question 7

posterior root ganglion

Answer 7

cluster of nerve cell bodies found immediately outside of the spinal column whose axons are normally responsible for transmitting sensory signals to the spinal cord

Question 8

spinal white matter

Answer 8

posterior funiculus- posterior funiculi contain ascending pathways carrying sensory information to the brain
lateral funiculus- transmits the contralateral corticospinal and spinothalamic tracts
anterior funiculus- contain various ascending and descending tracts,