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Biol 252L > Axial Skeleton > Flashcards

Axial Skeleton Flashcards

1
Q

Cervical and Lumbar Curvatures

A

Concave Posteriorly

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2
Q

Thoracic and Sacral Curvatures

A

Convex Posteriorly

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3
Q

Body of Vertebrae

A

Weight-bearing region

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4
Q

Vertebral Foramen

A

Location of the spinal cord

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5
Q

Superior/Inferior Articular Processes

A

Form joints with those of adjacent vertebrae

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6
Q

Pedicle

A

Stout connection between the body and rest of the vertebra

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7
Q

Intervertebral Foramina

A

Above and below Pedicle
- notches allowing for passage of spinal nerves

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8
Q

Lamina

A

Flat region connecting spinous process to rest of vertebra

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9
Q

Cervical Vertebrae

A

Allow flexibility in neck

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10
Q

Transverse Foramen

A

ONLY in ALL cervical vertebra and within the transverse process. Allow the passage of the vertebral artery to the brain

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11
Q

Axis

A

C1 - No vertebral body and articulates with the skull

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12
Q

Axis

A

C2 - Contains projection (dens) that fits into the vertebral foramen of C1

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13
Q

Dens

A

Adds additional support to C1 from slipping posteriorly over the surface of C2

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14
Q

Thoracic Vertebrae

A

Long, downward, sloping spinous processes and articulation with ribs

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15
Q

Superior and inferior costal facets

A

Articulations on the vertebral body

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16
Q

Transverse Costal Facets

A

Indicate where the transverse processes form a joint with the rib

17
Q

Lumbar Vertebrae

A

Most massive vertebral bodies and support large amount of body weight

18
Q

Sacrum

A

Formed by 5 sacral vertebral bodies during development

19
Q

Median Sacral Crest

A

Spinous processes likewise fuse to form this

20
Q

Alae

A

Transverse processes fuse to form wings

21
Q

Sacral Canal

A

Spinal nerves (cauda equina) travels through the vertebral canal

22
Q

Anterior Sacral Foramina

A

5 pairs of holes on the anterior surface of the sacrum
- Ventral rami of sacral spinal nerves exit sacral canal

23
Q

Posterior Sacral Foramina

A

5 pairs of holes on the posterior surface of the sacrum
- Dorsal rami exit the sacral canal

Biol 252L (18 decks)

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