Table of Contents
What is the lateral funiculus?
The lateral funiculus is the area of white matter located between the posterolateral and anterolateral sulci. From: Fundamental Neuroscience for Basic and Clinical Applications (Fifth Edition), 2018.
What is funiculus in spinal cord?
A funiculus is 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. Funiculi in the spinal cord are portions of white matter.
What travels through the lateral funiculus?
The lateral funiculus transmits the contralateral corticospinal and spinothalamic tracts. A lateral cutting of the spinal cord results in the transection of both ipsilateral posterior column and lateral funiculus and this produces Brown-Séquard syndrome.
What is a funiculus?
1 : a bodily structure suggesting a cord especially : a bundle of nerve fibers. 2 : the stalk of a plant ovule.
What is difference between funiculus and fasciculus?
A nerve fascicle, or fasciculus is a bundle of funiculi. A funiculus is a bundle of axons. A nerve fascicle refers to nerves in the peripheral nervous system; in the central nervous system this is known as a nerve tract.
Is fasciculus Cuneatus white or gray matter?
The long ascending pathways The dorsal column (fasciculus gracilis and fasciculus cuneatus of mammals) (Figure 9-5) consists of a collection of white matter fibers that originate from afferent neurons, whose cell bodies are in the dorsal root ganglion.
Is funiculus and funicle same?
the spermatic cord formed by the vas deferens and surrounding tissue. in insect antennae, the funicle is the segment connecting the club with the base. in flowering plants, the funiculus is the stalk that attaches an ovule to the placenta.
Where is lateral GREY Horn found?
the spinal cord
The lateral horn of the spinal cord is the small lateral projection of grey matter located between the dorsal horn and ventral horn and contain the neuronal cell bodies of the sympathetic nervous system.
What runs through gray commissure?
The grey commissure is a thin strip of grey matter that surrounds the central canal of the spinal cord and, along with the anterior white commissure, connects the two halves of the cord….
Grey commissure | |
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FMA | 77036 |
Anatomical terms of neuroanatomy |
Where is the lateral funiculus located in the human body?
Lateral Cervical Nucleus. It extends rostrally into the lower third of the medulla (Truex et al., 1970 ). In Japanese monkeys, it was observed as a group of medium to small-sized neurons appearing at the level of the caudal end of the gracile nucleus and disappearing within the caudal half of C2 ( Mizuno et al., 1967 ).
What kind of paralysis is caused by lateral funiculus?
Consequently, lesions of lateral corticospinal fibers on one side of the cervical cord result in ipsilateral paralysis of the upper and lower extremities(hemiplegia).
How does the reticulospinal fiber of the anterior funiculus work?
Reticulospinal and vestibulospinal fibers of the anterior funiculus function in postural mechanisms through their general excitation of extensor motor neurons and inhibition of flexor motor neurons.