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MSK test one > Back myology > Flashcards

Back myology Flashcards

1
Q

Capitulum

A

Small, round, articular head - ex: capitulum of the humerus

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2
Q

Condyle

A

rounded, knuckle-like articular area, often occurring in pairs- ex lateral and medial femoral condyles

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3
Q

Crest

A

ridge of bone- ex- iliac crest

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4
Q

Epicondyle

A

eminence superior or adjacent to a condyle- ex- lateral epicondyle of the humerus

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5
Q

Facet

A

smooth flat area, usually covered with cartilage, where a bone articulates with another bone- ex- superior costal facet of the body of a vertebra for articulation with a rib

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6
Q

Foramen

A

passage through a bone- ex- obtruator foramen

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7
Q

Fossa

A

hollow or depressed area

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8
Q

Groove

A

elongated depression or furrow

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9
Q

head

A

large, round articular end

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10
Q

Line

A

Linear elevation

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11
Q

Malleolus

A

rounded process

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12
Q

notch

A

indentation at the edge of a bone

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13
Q

Protuberance

A

projection of a bone

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14
Q

spine

A

thorn like process

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15
Q

Spinous process

A

projecting spine-like part

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16
Q

Trochanter

A

large blunt elevation

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17
Q

Trochlea

A

spool like articular process or process that acts as a pully

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18
Q

tubercle

A

small raised eminence

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19
Q

tuberosity

A

large rounded elevation

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20
Q

What are the 9 muscle types?

A

flat, pennate, fusiform, digastric, multiventral, multicaudal, serrated, circular and quadrate

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21
Q

What is the OIN of the Trapezius M?

A

O: spinous process of C7-T12, Ligamentum nuchae, External occipital protuberance and superior nucheal line of occiput
I: lateral 1/3 of clavicle, acromion and scapular spine
N: Spinal accessory N, 3, 4

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22
Q

What is the OIN of the Latissimus Dorsi?

A

O: SP of T6-T12, ribs 9-12, iliac crest and SP of L1-L5
I: Floor of the humeral intertubercular groove
N: Thoracordorsal N (c6-8)

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23
Q

What is the OIN of the Rhomboid major?

A

O: SP of t2-T5
I: medial border of scapula
N: Dorsal Scapular N (c4,5)

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24
Q

What is the OIN of the Rhomboid minor?

A

O: SP of c7 and t1
I: medial border of scapula
N: Dorsal Scapular N c4,5

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25
What is the OIN of the Levator Scapulae?
O: Posterior tubercles or transverse process of c1-4 I: medial border of scapula N: c3, 4 dorsal scapular N
26
What is the OIN of the Serratus posterior superior?
O: Nuchal L and SP c7-t3 I: superior surface or ribs 2-4 N: intercostal N 2-5
27
What is the OIN of the serratus posterior inferior?
O: SP of t11-L2 I: inferior surface of ribs 8-12 N: Anterior Rami t9-t12
28
What is the OIN of the Splenius capitis?
O: lower 1/2 of ligamentus nuchae and SP c7-t3 I: mastoid process, lateral 1/3 superior nucheal line N: Posterior rami c3-5
29
What is the OIN of the splenius cervicis?
O: SP of t3-t6 I: transverse process of t3-t6 N: posterior rami c5-7
30
What is the OIN of the Semispinalis capitis?
O: Transverse process of c-7 to t-6, articular process of c4-c6 I: between superior and inferior nuchal lines N: Posterior rami
31
What is the OIN of the Rectus capitis posterior major?
O: SP C2 I: lateral portion of inferior nuchal line N: suboccipital N
32
What is the OIN of the Rectus capitis posterior minor?
O: posterior tubercle of c1 I: below inferior nuchal line N: suboccipital N
33
What is the OIN of the Obliquus capitis inferior?
O: SP c2 I: TP c1 N: suboccipital N
34
What is the OIN of the obliquus capitis superior?
O: TP of c1 I: between the superior and inferior nuchal line N: suboccipital N
35
What are the three muscles associated with the suboccipital triangle?
rectus capitus posterior major, obliquus capitis superior and obliquus capitis inferior
36
What are the muscles in the first layer of the back?
Trapezius and latissimus dorsi
37
What are the muscles in the second layer of the back?
Rhomboid major, rhomboid major and levator scapulae
38
What are the muscles in the third layer of the back?
Serratus posterior inferior and serratus posterior superior
39
What are the muscles in the fourth layer of the back?
splenius capitis and splenius cervicis
40
What are the muscles in the fifth layer of the back?
iliocostalis (lumborum,thoracis and cervicis) longissumus (thoracis, cervicis and capitis) spinalis (thoracis, cervicis and capitis
41
What are the muscles in the sixth layer of the back?
Semispinalis(thoracis, cervicis and capitis) multifidus rotatorus longus rotatorus brevis
42
How many segments does the rotatorus brevis m. project up?
one segment
43
How many segments does the rotatorus longus m. project up?
two segments
44
How many segments does the multifidus m. project up?
3-4 segments
45
How many segments does the semispinalis m. project up?
5-6 segments
46
What is the most developed muscle in the 6th layer of the back?
the semispinalis capitis
47
What nerve innervates the entire suboccipital triangle?
the suboccipital nerve
48
What is the action of the trapezius m?
Whole muscle- rotate glenoid cavity superiorly upper part- elevate scapula lower part- depress scapula with scapula fixed- extend neck (bilaterally) and laterally flex neck/rotate face away (unilaterally)
49
What is the action of the latissimus dorsi?
extend, ADduct and medially rotate humerus, rotate glenoid cavity inferiorly
50
What is the action of the rhomboid major m.?
retract/elevate scapula, rotate glenoid cavity inferiorly
51
What is the action of the rhomboid minor m.?
retract/elevate scapula, rotate glenoid cavity inferiorly
52
What is the action of the levator scapulae m.?
elevate scapula and rotate glenoid cavity inferiorly | When scapula fixed- extend and side bend the neck
53
What is the action of the serratus posterior inferior m.?
depress ribs with forced expiration
54
What is the action of the serratus posterior superior m.?
elevate ribs with forced inspiration
55
what is the action of the splenius cervicis m.?
``` extend neck (bilaterally) sidebend /rotate face toward (unilaterally) ```
56
What is the action of the splenius capitis m.?
``` extend neck (bilaterally) sidebend /rotate face toward (unilaterally) ```
57
What is the action of the erector spinae group?
Maintain erect posture and extend the vertebral column/head with working bilaterally side bend the vertebral column when working unilaterally
58
What is the action of the most of the muscles in layer 6 of the back?
The will extend the spine and rotate the spine away
59
What is the action of the semispinalis capitis m.?
extend the head and rotate the face away
60
What is the action of the rectus capitis posterior major m.?
extend the head and rotate the face toward
61
What is the action of the rectus capitis posterior minor m.?
Extend the neck
62
What is the action of the obliquus capitis superior m.?
extend and side bend the head
63
What is the action of the obliquus capitis inferior m.?
rotate the face toward
64
Which muscle is the medial border of the occipital triangle?
The rectus capitis posterior major m.
65
Which muscle is the lateral border of the occipital triangle?
The obliquus capitis superior m.
66
Which muscle is the inferior border of the occipital triangle?
the obliquus capitis inferior m.

MSK test one (9 decks)

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