Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anatomy > Back Muscles- Action, Origin, Insertion, Etc > Flashcards

Back Muscles- Action, Origin, Insertion, Etc Flashcards

1
Q

Latissimus Dorsi- Origin and Insertion

A

Origin: T7-T12 spinous process; Thoracolumbar Fascia; inferior scapular angle; ribs 9-12

Insertion: Floor of the intertubercular groove (humerous)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Latissimus Dorsi- Action

A

Extends, adducts, medially rotates shoulder; raises body toward arms when hanging

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Latissimus Dorsi- innervation

A

Thoracodorsal n. (C6-C8)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Latissimus Dorsi- supply

A

thoracodorsal a.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Trapezius- origin and insertion

A

Origin: Medial 1/3 of superior nuchal line; External occipital protuberance; Ligamentum nuchae; C7-T12 spinous process

Insertion: Lateral 1/3 of clavicle; acromin; scapular spine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Trapezius- action

A

Elevates, depresses, and retracts scapula and rotates glenoid fossa; Steadies scap to thoracic wall; unilaterally flexes to the same side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Trapezius- innervation

A

Cranial Nerve XI (spinal accessory nerve); C3-4 pain and proprioception

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Trapezius- supply

A

Transverse cervical a.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Levator scapulae- Origin and insertion

A

Origin: C1-C4 transverse process

Insertion: Superior angle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Levator scapulae- action

A

Elevates scapula; rotates glenoid fossa inferiorly; unilat flex of neck to same side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Levator scapulae- innervation

A

Dorsal scapular n. (C5); C3-4 spinal nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Levator scapulae- supply

A

Dorsal scapular a.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Rhomboid major- origin and insertion

A

Origin: T2-T5 spinous process

Insertion: Medial border of scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Rhomboid major- Action

A

Retracts scap; rotates glenoid fossa inferiorly; steadies scapula to thoracic wall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Rhomboid major- Innervation

A

Dorsal scapular n. (C5)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Rhomboid major- supply

A

Dorsal scapular a.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Rhomboid minor- origin and insertion

A

Origin: Ligamentum nuchae, C7-T1 spinous process

Insertion: Medial border of scapula (root of scap spine)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Rhomboid minor- Action

A

Shared with the major, only difference is this one unilaterally inclines neck to the same side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Rhomboid minor- Innervation

A

Dorsal scapular n. (C5)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Rhomboid minor- supply

A

Dorsal scapular a.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Serratus posterior superior- Prox and distal attachment

A

Proximal: lig nuchae, C3-T3 spinous process

Distal: ribs 2-4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Serratus posterior superior- action

A

Proprioception

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Serratus posterior superior- innervation

A

Anterior rami T2-T5 thoracic spinal n.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Serratus posterior superior- supply

A

Intercostal aa.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Serratus posterior inferior- prox and dist attachments
Prox: T11-L2 spinous process Distal: Ribs 8-12
26
Serratus posterior inferior- action
Proprioception
27
Serratus posterior inferior- innervation
Anterior rami T9-12, thoracic spinal n.
28
Serratus posterior inferior- supply
Intercostal aa., subcostal a., lumbar aa.
29
Splenius cervicis- prox and distal atach
Prox: T3-T6 spinous process Distal: C1-C3 trans process
30
Splenius cervicis- action
Bilaterally extends neck; unilat flexes and rotates neck to same side
31
Splenius cervicis- innervation
Posterior rami spinal nerves
32
Splenius cervicis- supply
Occipital, transverse cervical, and intercostal aa.
33
Splenius capitis- prox and dist attach
Prox: Lig nuchae, C7-T4 spinous process Distal: mastoid process, 1/3 sup nuchal line
34
Splenius capitis- action
Bilat extends neck, unilat flex and rot neck to same side
35
Splenius capitis- innervation
Posterior rami of spinal nerves
36
Splenius capitis- supply
Occipital and transverse cervical aa.
37
Iliocostalis (lumborum, thoracis, cervicis)- prox and dist attach
Prox: broad tendon from iliac crest, sacrum, lumbar and lower thoracic spinous processes Distal*: andles of lower ribs and cerv transverse processes
38
Iliocostalis (lumborum, thoracis, cervicis)- action
Bilaterally extend spine (head); unilat flexes spine (and head) to same side
39
Iliocostalis (lumborum, thoracis, cervicis)- innerve
Segmentally innervated by post rami of spinal nn.
40
Iliocostalis (lumborum, thoracis, cervicis)- supply
Segmentally supplied by deep cerv, intercost, subcost, and lumbar aa.
41
Longissimus (thoracis, cervicis, capitis)- prox and distal attach
Prox: Broad tendon from iliac crest, sacrum, and lum/lower thor spinous processes Distal*: Thor and cerv transverse processes; mastoid process
42
Longissimus (thoracis, cervicis, capitis)- action
Bilaterally extend spine (and head); unilat flex spine (and head) to same side
43
Longissimus (thoracis, cervicis, capitis)- inervation
Segmentally innervated by posterior rami of spinal nn.
44
Longissimus (thoracis, cervicis, capitis)- supply
Segmentally supplied by deep cerv, intercostal, subcostal, and lum aa.
45
Spinalis (thoracis and cervicis)- prox and distal attach
Prox: Broad tendon from iliac crest, sacrum, lumbar and thoracic spinous processes Distal*: Thoracic and Cervical spinous processes
46
Spinalis (thoracis and cervicis)- innervation
Segmentally innervated from posterior rami of spinal nn.
47
Spinalis (thoracis and cervicis)- action
Bilat extend spine and head; unilat flexes spine (and head) to same side
48
Spinalis (thoracis and cervicis)- supply
Segmentally supplied from deep cerv, intercostal, subcostal, and lumnbar aa.
49
Semispinalis (thoracis, cervicis, capitis)- prox and distal attach
Prox: C4-6 articular processes; T7-12 trans processes Distal: Occipital and spinous processes of superior vertebrae spanning 4-6 segments
50
Semispinalis (thoracis, cervicis, capitis)- action
Bilat extends spine; unilat flexes spine to same side and rotates to opposite side
51
Semispinalis (thoracis, cervicis, capitis)- innervation
Segmentally innerv by posterior rami of spinal nerves
52
Semispinalis (thoracis, cervicis, capitis)- supply
Segmentally supplied by deep cerv, intervostal, subcostal, and lumbar aa.
53
Multifidus- prox and distal attach
Prox: Sacrum, ilium, mamillary, transverse, and articular processes Distal: C2 spinous process of superior vert., spanning 2-4 segments
54
Multifidus- action
Bilat extends spine; unilat flexes spine to same side and rotate to opposing side
55
Multifidus- innerv
posterior rami of spinal nerves (segmental)
56
Multifidus- supply
Deep cerv, intercostal, subcostal, and lumbar aa. (Segmented)
57
Rotatores (longus and brevis)- prox and distal attach
Proximal: T1-T12 transverse processes Distal: Between laminae and SP of superior vertebrae (1-2 segments)
58
Rotatores (longus and brevis)- action
Bilaterally flexes spine to same side; unilaterally rotates spine to opposite side
59
Rotatores (longus and brevis)- innervation
Posterior rami of spinal nerves (segmented)
60
Rotatores (longus and brevis)- supply
Intercostal, deep cervical, subcostal, and lumbar aa. (Segmented)
61
Interspinales (cervicis, thoracis, lumborum)- prox and distal attach
Proximal and distal: Traverse between adjacent SP C1-5
62
Interspinales (cervicis, thoracis, lumborum)- action
Assists in spinal extension
63
Interspinales (cervicis, thoracis, lumborum)- innervation
Posterior rami of spinal nerves
64
Interspinales (cervicis, thoracis, lumborum)- supply
Segment: deep cerv, intercostal, subcostal, lum aa.
65
Intertransversarii (cervicis, thoracis, lumborum)- prox and dist
Prox and Distal: Traverse between adjacent transverse processes C2-L5
66
Intertransversarii (cervicis, thoracis, lumborum)- action
Bilaterally stabilizes spine; unilaterally assists in lateral flexion
67
Intertransversarii (cervicis, thoracis, lumborum)- innervation
Anterior and posterior rami of spinal nerves
68
Intertransversarii (cervicis, thoracis, lumborum)- supply
Seg: deep cervical, intercostal, subcostal, and lumbar aa.
69
Levatores costarum (longus and brevis)- prox and dist attach
Proximal: C7-T11 transverse processes Distal: Subjacent rib (brevis) or two ribs below near angle (longus?)
70
Levatores costarum (longus and brevis)- action
Bilaterally elevates ribs and slightly extends thor spine; unilat flexes spine to same side and rotates to opposing side
71
Levatores costarum (longus and brevis)- innervation
Posterior rami of spinal nerves
72
Levatores costarum (longus and brevis)- supply
Deep cervical, intercostal, subcostal, and lumbar aa.

Anatomy (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions