GENERAL HISTOLOGY

NERVOUS SYSTEM SPECIAL SENSE

SPINALCORD

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where are the tracts in the spinal cord found?
A
funiculi (columns)
B
anterior horn
C
ventral horn
D
central canal
Explanation: 

Detailed explanation-1: -In the lateral column (funiculus), the neospinothalamic tract (or lateral spinothalamic tract) is located more anteriorly and laterally, and carries pain, temperature and crude touch information from somatic and visceral structures.

Detailed explanation-2: -The lateral funiculus lies between the posterior root entry zone and the site of emergence of the anterior root fibers at the anterolateral sulcus. The lateral funiculus contains both ascending and descending nerve fiber tracts.

Detailed explanation-3: -The white matter of the spinal cord is subdivided into dorsal (or posterior), lateral, and ventral (or anterior) columns, each of which contains axon tracts related to specific functions.

Detailed explanation-4: -A funiculus or columnis a small bundle of axons (nerve fibres), enclosed by the perineurium. A small nerve may consist of a single funiculus, but a larger nerve will have several funiculi collected together into larger bundles known as fascicles. Fascicles are bound together in a common membrane, the epineurium.

Detailed explanation-5: -Spinal Cord Tracts The white matter of the spinal cord is divided into the paired posterior (dorsal), lateral, and anterior (ventral) columns. These columns are sometimes called funiculi (or funiculus when singular) and are made up of axons that are traveling up (ascending) or down (descending) the spinal cord.

There is 1 question to complete.