The Spinal Cord, Spinal Nerves, And Somatic Reflexes

Front 1

Conduction, neural integration, Locomotion, reflexes.

Back 1

Four principal functions of the spinal cord

Front 2

Conduction

Back 2

Bundles of nerve fibers that conduct information up and down the cord connecting different levels of the trunk with each other and with the brain.

Front 3

Neural integration

Back 3

Pools of spinal neurons receive input from multiple sources, integrate the information, and execute an appropriate output.

Front 4

Locomotion

Back 4

Walking involves repetitive, coordinated contractions of several muscle groups in the limbs.

Front 5

Spinal cord

Back 5

A cylinder of nervous tissue that arises from the brainstem at The foramen Magnum of the skull

Front 6

Meninges

Back 6

The spinal cord and brain are enclosed in three fibrous membranes called

Front 7

Dural sheath

Back 7

The dura mater forms a loose-fitting sleeve around the spinal cord

Front 8

31

Back 8

Number of pairs of spinal nerves

Front 9

Epidural space

Back 9

The Space Between the sheath and vertebral bone. Is occupied by blood vessels, adipose tissue, and loose connective tissue.

Front 10

Arachnoid Mater

Back 10

Consist of five or six layers of squamous to cuboidal cells adhering to the inside of the dura.

Front 11

Subarachnoid space

Back 11

A gap spanning between the arachnoid Mater and the Pia Mater. Is filled with cerebrospinal fluid.

Front 12

Lumbar cistern

Back 12

The subarachnoid space inferior to the medulla cone. Is occupied by the cauda equina and CSF

Front 13

Pia Mater

Back 13

A delicate, transparent membrane composed of one or two layers of squamous to keep oil cells and delicate collagenous and elastic fibers

Front 14

Coccygeal ligament

Back 14

At the level of vertebrae S2 the fusion of the dura mater and Pia Mater the anchors the cord and meninges to vertebrae co1

Front 15

Anterior median fissure

Back 15

A longitudinal groove on the ventral surface of the spinal cord

Front 16

Posterior median sulcus

Back 16

The longitudinal groove on the dorsal surface of the spinal cord

Front 17

Medullary cone

Back 17

The end of the spinal cord located at L1

Front 18

Gray matter

Back 18

Contains the Somas, dendrites, and proximal parts of the axons of neurons. This site of synaptic contact between euron's, and therefore the site of all neural integration in the spinal cord

Front 19

White matter

Back 19

Contains an abundance of myelin. Is composed of bundles of axons that carries signals from one level of the CNS to another

Front 20

Central canal

Back 20

In the spinal cord, is lined with ependymal cells and contains cerebrospinal fluid

Front 21

Funiculi

Back 21

Bundles arranged in three pairs hyphen a posterior, lateral, and anterior column on each side

Front 22

Ascending tract

Back 22

Carry sensory information up the cord

Front 23

Descending tract

Back 23

Conduct motor impulses down

Front 24

Grey commissure

Back 24

Connects the left and right side of the grey matter in the spinal cord

Front 25

Somatic motor

Back 25

Neurons in the anterior horns of the spinal cord