Anatomical Terminology Flashcards

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1
Q

ala sacralis

A

the wing-like upper part of each lateral mass of the sacrum as viewed from above
in latin, ala is wing

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2
Q

annulus fibrosis

A

outer part of the intervertebral disc surrounding the nucleus pulposus made up of rings of collagen fibers arranged in layers,

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3
Q

anterior arch

A

the section of the vertebra consisting of the vertebral body and the anterior third of the pedicles

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4
Q

anterior longitudinal ligament

A

(ALL) Thick, longitudinally oriented ligamentous fibers connecting the anterior surfaces of the vertebral bodies from C2 to the sacrum

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5
Q

aorta

A

the main vessel of the arterial system

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6
Q

apophyseal ring

A

the ring of cortical bone surrounding the vertebral body beneath the endplate

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7
Q

apophysis

A

an outgrowth or projection especially from a bone

A bony process or outgrowth that lacks an independent center of ossification

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8
Q

articular

A

relating to a joint

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9
Q

atlantoaxial joint

A

the joint at which the atlas C1 articulates with the axis C2

The odontoid process of C2 acts as a pivot point for the rotation of C1

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10
Q

Atlas

A

the first cervical vertebra C1

named after the mythological figure Atlas because it supports the “globe”

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11
Q

autogenous

A

self producing from within the body

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12
Q

axis

A

the second cervical vertebra C2

the pivot point for the atlas

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13
Q

cancellous bone

A

porous loosely knit bone similar in structure to a sponge

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14
Q

cauda equina

A

bundle of spinal nerves and spinal nerve rootlets extending from the conus medullaris into the vertebral canal below L1
latin: cauda tail and equus horse, horse’s tail

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15
Q

central nervous system

A

the primary part of the nervous system composed of the brain and spinal cord

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16
Q

cerebrospinal fluid

A

CSF clear colorless fluid formed by cells in the brain and spinal cord
has a protective function as a shock absorber for the spinal cord

17
Q

cervical

A

relating to the neck or cervix

the first 7 vertebra of the spine

18
Q

coccyx

A

the small triangular bone attached to the base of the sacrum

formed by 4 or 5 fused rudimentary vertebra

19
Q

conus medullaris

A

the cone shaped base of the spinal cord

20
Q

cortical bone

A

dense, solid bone tissue found in the outer shell of the vertebra

21
Q

costovertebral joints

A

the smooth rounded facet joints located laterally on the vertebral bodies of T2-T9 that articulate with the ribs

22
Q

Dens

A

the tooth-like process projecting superiorly from the body of C2
provides a capsular pivot joint for atlanto-axial rotation
also called the odontoid process

23
Q

Discitis

A

inflammation of the disc

24
Q

Discogenic

A

from a damaged vertebral disc

25
Q

dorsal root

A

multiple filaments of the sensory fibers located on the posterior side of the spinal cord

26
Q

dura meter

A

the tough fibrous membrane forming the outer covering of the central nervous system
in the brain it has two layers
in the spinal cord it has a single layer

27
Q

endplate

A

a thin plate of well-vascularized tissue composed of an outer layer of cartilage and an inner layer of bone that is strongly attached to the cortical rim of the vertebral body

serves as a growth ring for the vertebral body

28
Q

epidural space

A

the space surrounding the spinal cord, filled with fatty tissue, veins and arteries

29
Q

extension

A

the act of straightening or unbending / backward bending in the spine

30
Q

facet joint

A

a synovial joint formed by the inferior articular process of one vertebra and the superior process of the adjacent vertebra

the connections between the bones of the spine

The nerve roots pass through these joints to go from the spinal cord to the arms, legs and other parts of the body. These joints also allow the spine to bend and twist, and they keep the back from slipping too far forward or twisting without limits.

31
Q

flexion

A

the act of flexing or bending

forward bending in the spine

32
Q

foramen

A

a hole or opening in bone