Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Gross Anatomy: Unit One. > Back Muscles > Flashcards

Back Muscles Flashcards

(66 cards)

Start Studying
1
Q

Trapezius Origin

A

Origin: External Occipital protuberance on the Occipital Bones, Spinous Process of C7-T12, Nuchal Ligament, Medial third of the Superior Nuchal Line on the Occipital Bones

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

Latissimus Dorsi Origin

A

Origin: Spinous Processes of inferior 6 thoracic region, thoracolumbar fascia, iliac creat, Inferior three to four ribs

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

Rhomboids Origin of Both Major and Minor

A

Origin:

 - Minor: Nuchal Ligament, Spinous Process of C7-T1
 - Major: Spinous Process of T2-T5
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Levator Scapulae origin

A

Origin: Transverse processes of C1-C4

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

Thoracolumbar Fascia

A

All the dorsal fascia is named this, but it is most important with the lats, due it the origin site

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

Serratus Posterior Superior

A

Origin: Nuchal ligament, Spinous Process of C7 -T3

Insertion: Superior Boarders on the 2-4 rib

Innervation: 2nd-5th intercostal nerve

Motion:Elevates Ribs

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

Serratus Posterior Inferior

A

Origin: Angles of the 8-12 rib

Insertion: Spinous Process of T11-L2

Innervation: 9th-11th intercostal nerves,

Motion: Depresses Ribs

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

Erector Spinae Parts and Motion

A

Three Parts: Iliocostals, longissimus, Spinals
The Motion is the same for all three subgroups.
-BiLaterally: extend vertebral column and head (bend back)
- Unilaterally: laterally flex the column

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

Iliocostals, Longissimus, and Spinals Origin

A

Origin: Board Tendon from Posterior Iliac crest, Posterior Part of the Sacrum, Sacro-iliac ligament, Sacral and inferior Lumbar Spinous Processes and Supraspinous ligament

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

Longissimus insertion and innervation

A

Middle Erector Spinae Muscles

Insertion: Runs between the angles and tubercles of the ribs to the thoracic and cervical transverse processes and the mastoid process on the temporal bone

Innervation: Posterior Rami of spinal nerve

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

Spinals insertion and innervation

A

Insertion: Fibers run superiorly to the spinous processes in the upper thoracic region and to the cranium

Innervation: Posterior Rami of spinal nerve

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

Semispinalis

A

Like a bandage that covers the deep muscles on the neck
Have three parts
-thoracis, cervicis, Capitis

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

Trapezius Insertion

A

Insertion: Clavicle, Acromion and Spine of the Scapula

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

Trapezius innervation

A

Innervation: Spinal Accessory Nerve (CN XI) (Runs with the Transverse Cervical Artery)and C3, C4 Spinal nerve

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

Trapezius Motion

A

Decending fibers elevate
Middle fibers retract
Ascending fibers depress

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

Lattissimus Dorsi insertion

A

Insertion: intertubular groove on the humerous

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

Lattissimus Dorsi Innervation

A

Innervation: Thoracodorsal Nerve (C6, C7, C8)

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

Lattissimus Dorsi Motion

A

Motion: Extends (Arms Back), Adducts (Arms in), Medially Rotates the Shoulder joint

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

Rhomboids (Both) Insertion

A

Insertion:

 - Minor: at the medial end of the scapular spine
 - Major: Inferior to the scapular spine on the medial border
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Rhomboids (Both) Innervation

A

Innervation:

 - Minor: Dorsal Scapular Nerve (C4, C5)
 - Major: (Same)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Rhomboids (Both) Motion

A

Motion:

 - Minor: Retract Scapula, Depress the glenoid cavity
 - Major: (Same)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Iliocostal Insertion

A

Insertion: Runs to the angles of the lower ribs and the transverse processes of the cervical region

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

iliocostal intervation

A

Innervation: Posterior Rami of spinal nerve

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

Semispinalis (all three) origin

A

The transverse processes of c4-t10 vertebrae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Semispinalis (all three) insertion
- Superomedially to the occipital bone | - Spinous processes in the upper thoracic and cervical regions (4-6 segments)
26
Semispinalis (all three) nerve supply
Posterior rami of spinal nerves
27
Semispinalis (all three) action
- extends the head, thoracic and cervical regions of the vertebrae column - rotates contralaterally
28
splenius origin
Two different components (capitis and cervicis) with the same origin -nuchal ligament and spinous process of C7-T6
29
splenius capitis insertion
- Superolaterially to the mastoid process of the temporal bone - lateral third of the superior nuchal line
30
Splenius cervicis insertion
Tubercles of the transverse process of C1-3or4
31
splenius intervation
Both the capitis and cervicis are intervated by the posterior rami of the spinal nerves
32
Splenius action
Alone: laterally flex the neck and rotate head to the side of active muscles acting together: extend the head and neck
33
Levator Scapulae insertion
Insertion: Medial Border on the scapula, superior to the spine
34
Levator Scapulae innervation
Innervation: Dorsal Scapular Nerve (C5) and Cervical Spinal nerves (C3, C4)
35
Levator Scapulae motion
Motion: Elevates the scapula and tilts the glenoid cavity inferiorly by rotating the capula
36
Multifidus origin
- posterior sacrum - posterior superior iliac spine of ilium - apnoreurosis of the erector spinal - sacroiliac ligaments - transverse processes of the thoracic - articular processes of c4-c7
37
Multifidus insertion
- Thickest part of the lumbar region - Fibers pass obliquely superomedially to entire length of spinous processes of vertebrae located two to four segments superior to origin
38
Multifidus nerve supply
Posterior rami of the spinal nerves
39
Multifidus motion
- unilateral contraction rotates to contralateral side | - stabilizes vertebrae during local movement to vertebral column
40
Rotators Origin
Transverse processes of vertebrae, best developed in the thoracic region
41
Rotators insertion
Attach to the junction of lamina and transverse process or spinous process of vertebra immediately (brevis) or superior (longus)
42
Rotators nerve supply
Posterior rami of the spinal nerves
43
Rotators action
Not a major movement muscle | Possibly stabilizes vertebrae and assist with local extension and rotary movements of the vertebral column
44
Suboccipital triangle
Made up of obliquus capitis inferior and superior and the rectus capitis major ( with minor laying under it) Through the triangle is the vertebral artery and the Suboccipital nerve, which intervates these muscles
45
Obliquus capitis inferior origin and insertion
Origin: Spinous process of C2 Insertion: transverse processes of C1 Inferolaterally
46
Obliquus capitis superior origin and insertion
Superolaterally Origin: C1 transverse process Intervation: in between the two superior and inferior nuchal lines
47
Rectus capitis major origin and insertion
Superiomedially boarder Origin: C2 spinous process Insertion: lateral inferior nuchal line
48
Rectus capitis minor insertion and origin
Not part of the triangle Origin: posterior arch of C1 Insertion: medial inferior nuchal line
49
Floor of the Suboccipital triangle
Posterior arch of c1 | Posterior Atlanto-occipital membrane
50
Roof of the Suboccipital triangle
Semispinalis capitis
51
Runs through the Suboccipital triangle
Vertebral artery and Suboccipital nerve
52
Sternocleidomastoid superior and inferior attachment
Superior Attachment: lateral surface of mastoid process and lateral half of superior nuchal line Inferior attachment: anterior surface of the manubrium and superior surface of the medial end of the clavicle
53
Sternocleidomastoid intervation
Spinal accessory nerve and C2 and C3 spinal nerves
54
sternocleidomastoid action
Unilateral: tilts head to the same side Bilateral: extends help at the AO joint and flexes cervical vertebral to put the chin to sternum and protraction
55
Anterior Scalenus superior and inferior attachment
Superior: anterior tubercles of the transverse processes of c3-c6 vertebrae Inferior: 1st rib
56
Anterior Scalene innervation
Cervical spinal nerves c4-c6
57
Anterior scalene action
Flexes neck laterally, elevates first rib during forced inspiration
58
Middle scalene superior and inferior attachment
Superior: posterior tubercle of transverse processes of c4-c7 vertebrae Inferior: superior surface of the 1st rib
59
Middle scalene innervation
Anterior rami of cervical spinal nerves
60
Middle scalene action
Flexes neck laterally, elevates 1st rib during inspiration
61
Posterior scalene inferior and superior attachment
Superior: posterior tubercle of transverse processes of c4-c6 Inferior: external border of the 2nd rib
62
Posterior scalene innervation
Anterior rami of cervical spinal nerves c7 and c8
63
Posterior scalene action
Flexes neck laterally, elevates 2nd rib during forced inspiration
64
Inbetween the anterior and middle scalenes
Branchial plexus dorsal root
65
Floor of the lateral cervical region
Posterior and middle scalenes, Levator scapulae, Splenius capitis
66
Roof of the cervical lateral region
Investing layer of deep cervical fascia, platysma

Gross Anatomy: Unit One. (4 decks)

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