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Anatomy Exam III > Muscle O/I/N/B > Flashcards

Muscle O/I/N/B Flashcards

1
Q

Trapezius

A

O:Occipital Bone/Lig. Nuchae/S.P C7-T12
I: Lat 1/3 clavicle/Acromion&spine of scapula
N: CN XI (motor) / C3,4 ventral rami (pain/proprio)
B: Superficial branch of transverse cervical (deep surface of muscle)

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2
Q

Latissimus Dorsi

A

O:Spin. Proc lower 6 thoracic/Thoracolumbar fascia/Iliac crest/lower 3-4 ribs (some scapula as well)
I:Intertubercular groove of humerus
N: Thoracodorsal nerve (C6,7,8 from brach. plex.)
B: Thoracodorsal artery

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3
Q

Levator Scapula

A

O:Tran. Proc of C1-3or4
I:Superior angle of scapula and upper medial border
N: Dorsal scap nerve (ventral C5 ramus) and 3rd&4th cerv. nerves
B:Dorsal scap artery or deep branch of transverse cerv.

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4
Q

Rhomboids

A

O:Spines of C7-T5
I:Medial border of scapula
N: Dorsal scap. nerve (ventral C5 rami), some C4
B: Dorsal scap artery

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5
Q

Serratus Posterior Superior

A

O:Lig. Nuchae and C7-T3 spines
I: ribs 2-4
N: First 3 thoracic spinal nerves (intercostals)
B: Intercostal arteries

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6
Q

Serratus Posterior Inferior

A

O:T11-L2 spines
I:Lower 4 ribs
N:Last 4 thoracic nerves (intercostals)
B: Intercostal arteries

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7
Q

Splenius Capitis

A

O:Ligament Nuchae/Sp. Proc. of C7-T3
I:Occipital Bone/Mastoid Process
N: Dorsal Primary Rami
B: Post. Intercostal Arteries

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8
Q

Splenius Cervicis

A

O:Spin. proc T3-6
I:Trans. Proc. C2-4
N:Dorsal Primary Rami
B:Post. Intercostal Arteries

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9
Q

Iliocostalis Lumborum

A

O:Common tendon of Erect. Spin.
I: Angle of ribs 6-12
N:Dorsal Primary Rami
B: Post Intercostal Arteries

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10
Q

Iliocostalis thoracis

A

O:Lower 6 ribs
I: Upper 6 ribs
N: Dorsal Primary Rami
B: Post intercostal Arteries

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11
Q

Iliocostalis cervicis

A

O:Ribs 3-6
I:Trans. Proc. C4-6
N:Dorsal Primary Rami
B: Post intercostal arteries

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12
Q

Longissimus thoracis

A

O:Part of common tendon of Erec. Spin.
I:Lower 9 ribs
N: Dorsal Primary Rami
B: Post intercostal arteries

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13
Q

Longissimus cervicis

A

O:Trans Proc T1-5
I:Trans Proc C2-6
N: Dorsal Primary Rami
B: Post intercostal arteries

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14
Q

Longissimus capitis

A

O:Tendon of Long. Cerv. insertion (Tr. Pr. C2-6)
I: Mastoid Process
N: Dorsal Primary Rami
B: Post intercostal arteries

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15
Q

Spinalis Thoracis

A

O: Spine of T11-L2
I: Spin of T1-4
N: Dorsal Primary Rami
B: Post intercostal arteries

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16
Q

Semispinalis Cervicis

A

O:Tran. Proc T1-6
I: Spine of C2-5
N: Dorsal Prim Rami
B: Post intercostal arteries

17
Q

Semispinalis Capitis

A

O:Tran and Art. Proc. of T1-6
I:Occipital Bone
N: Dorsal Prim. Rami
B: Post intercostal arteries

18
Q

Long Rotators

A

O: Transverse Processes
I: Spin. Processes of vertebrae 2 above
N: Dorsal Prim. Rami
B: Post Intercostal Arteries

19
Q

Short Rotators

A

O: Transverse Processes
I: Spinous Processes of vertebrae directly above
N: Dorsal Prim Rami
B: Post intercostal arteries

20
Q

Oblique Capitis Inferior

A

O: Spine of axis (C2)
I: Trans Process of atlas (C1)
N: Suboccipital n. (Dorsal Rami of C1)
B: Vertebral A. and Deep Cerv. A.

21
Q

Oblique Capitis Superior

A

O: Trans. Process of atlas (C1)
I:Occipital Bone
N: Suboccipital n. (Dorsal Rami of C1)
B: Vertebral A. and Deep Cerv. A.

22
Q

Rectus Capitis posterior major

A

O: Spine of Axis (C2)
I: Occipital Bone
N: Suboccipital n. (Dorsal Rami of C1)
B: Vertebral A and deep cerv. A

23
Q

Rectus Capitis Posterior Minor

A

O: Post. Tubercle of atlas (C1)
I: Occipital Bone
N: Suboccipital n. (Dorsal Rami of C1)
B: Vertebral A. and deep cerv A.

24
Q

Thoracic Diaphragm

A

N: Phrenic (C3,4,5)
B: Above: Pericardiacophrenic artery, Musculophrenic artery(Bother from internal thoracic), superior phrenic (from aorta) Below: Inferior phrenic arteries (from aorta)

25
Q

Pectoralis Major

A

O: Clavicle/Sternum/Upper 6 costal cartilages
I:Lateral lip of intertubercular groove
N: Medial and Lateral Pectoral nerves (Br. Plex)
B: Pectoral Brs. of Thoracoacromial trunk

26
Q

Pectoralis Minor

A

O: Ribs 3-5
I: Coracoid process of scapula
N: Medial pectoral nerve (Br. Plex)
B:Pectoral Brs. of Thoracoacromial trunk

27
Q

Serratus Anterior

A

O: Upper 8-9 ribs
I: Medial border of scapula
N: Long thoracic nerve (C5-7)
B: Lateral Thoracic Artery

28
Q

Levator Costarum

A

O: Trans. Process C7-T11
I: Costal Tubercle and Costal Angle
N: Dorsal Primary Rami

29
Q

External Intercostals

A

Action: Elevate
Fibers: Anteroinferiorly from upper to lower rib
Starts at costal tubercle, ends at costochondral jxn
Extends to sternum as external/anterior intercostal membrane
N: Ventral primary rami (intercostals)
B: Intercostals

30
Q

Internal Intercostals

A

Action: Depress
Fibers: Posteroinferiorly from upper to lower rib
Starts at lateral sternal border, ends at costal angle
Extends to vertebrae as internal/posterior intercostal membrane
N: Ventral Primary Rami (Intercostals)
B: Intercostals

31
Q

Innermost Intercostal Muscle

A

Action: Elevation
Located in 3rd muscular layer of intercostal space
Found internally on posterolateral thoracic wall

32
Q

Subcostal Muscle

A

Located internally on post. thoracic wall
Crosses more than 1 intercostal space
Elevates
Located in 3rd muscular layer posteriorly

33
Q

Transversus Thoracis

A

Action: Depresses
Lower sternum to internal surface of 2-6 costal cartilage
Located in 3rd Muscular layer anteriorly

Anatomy Exam III (1 decks)

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