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PTRS 710 Exam 1 > Dermatomes + Vertebral Column Back 1 > Flashcards

Dermatomes + Vertebral Column Back 1 Flashcards

1
Q

C3-C8 Dermatomes

A

Neck region

Down arm

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2
Q

T1-T11 Dermatomes

A

Medial side of arm
Thorax
C7 down to small of back

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3
Q

L1-L5 Dermatomes

A

Lower back

Anterior and medial leg

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4
Q

S1-S2 Dermatomes

A

Posterior and lateral leg

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5
Q

Vertebral Column made of

A 
7 cervical vertebrae
12 thoracic vertebrae
5 lumbar vertebrae (L1-L5)
5 fused sacral vertebrae
3-4 fused vertebrae of the coccyx
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6
Q

Body of Vertabrae

A

Support of body weight

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7
Q

Vertebral Arch

A

Protection of spinal cord

2 pedicles and laminae

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8
Q

Articular Processes

A

Restriction of movement

Stability

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9
Q

Transverse Processes

A

Muscle attachment

Movement

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10
Q

Spinous Processes

A

Muscle attachment

Movement

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11
Q

Foramen Transversium (C1-C6)

A

Vertebral artery passage

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12
Q

Atlas (C1)

A

No body or spinous process

Superior articular facets for occipital condyles

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13
Q

Thoracic Vertebrae

A

Stable

Articulate with ribs

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14
Q

Lumbar Vertebrae

A

Articular proceses limit rotation but allow flexion/extension

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15
Q

Sacral Hiatus

A

Posterior, inferior opening to sacral canal

Access to epidural space

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16
Q

Annulus Fibrosus

A

Concentric layers of oblique fibers around and between vertebral bodies

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17
Q

Nucleus Pulposus

A

Avascular, gelatinous mass

Shock absorber and semifluid ball bearing

18
Q

Anterior Longitudinal Ligament

A

Runs anterior to vertebral bodies

Limits hyperextension

19
Q

Posterior Longitudinal Ligament

A

Runs posterior to vertebral bodies
Weaker than anterior
Provides stabilization

20
Q

Ligamentum Flavum

A

Extends from lamina to lamina

Forms posterior boundary of intervertebral foramen/posterior wall of spinal canal

21
Q

Where does C1 exit?

A

Above Atlas

22
Q

Where does C2 exit?

A

Below Atlas

23
Q

Where does C8 exit?

A

Below C7

24
Q

Where do thoracic, lumbar and sacral nerves exit?

A

Below corresponding vertebrae

25
Q

Meninges of Spinal Cord

A

Dura mater
Arachnoid mater
Pia mater

26
Q

Dura Mater

A

Outer most layer of meninges

Has denticulate ligament

27
Q

Denticulate Ligament

A

Extends from each side of spinal cord to attach to inner surface of dura
Provide stabilization

28
Q

Arachnoid Mater

A

Separates pia from dura mater
Contains CSF fluid
Sends arachnoid trabeculae through subarachnoid space

29
Q

Pia Mater

A

Two fused layers which enclose blood vessels that supply the spinal cord
Inner most layer of meninges

30
Q

Lumbar Cisterna

A

Area from L2 to S2

CSF collected from this area

31
Q

Cauda Equina

A

Spinal nerves distal to conus medullaris (L1-L2)

32
Q

CSF

A

Mechanical and protective support for brain

Important for excitability

33
Q

Epidural space

A

Between dura mater and periosteum of vertebrae

34
Q

C2-C3 SCI

A

Rapidly fatal without intervention

35
Q

C4 SCI

A

Respiratory difficulty

Paralysis of all 4 extremities

36
Q

C5-C6 SCI

A

Involves limited arm control

37
Q

C7-C8 SCI

A

Involves normal arm/limited hand

38
Q

T1-T10 SCI

A

Causes paraplegia

39
Q

T11 SCI

A

Walk with braces

40
Q

Peripheral Nervous System

A 
Nerve fibers and cell bodies outside CNS
Sends afferent (sensory) info to brain and control movement using efferent (motor) info sent from brain
41
Q

Somatic Nervous System

A

Motor - In ventral horn

Sensory - Dorsal root ganglia

42
Q

Autonomic Nervous System

A

Visceral motor - modulates internal organ function

Sympathetic or parasympathetic

PTRS 710 Exam 1 (7 decks)

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