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Back Muscles
Function, Origin, Insertion, Innervation, Blood Supply
16
Biology
Graduate
01/21/2013

Additional Biology Flashcards

 


 

Cards

Term

 

 

Trapezius

 

(Superficial)

Definition

F:rotate, elevate, adduct scapula move upper limb

 

O:external occipital protruberance, ligamentum nuchae, spinous process

 

I:Lateral clavicle, spine of scapula

 

N:CN XI (Accessory)

 

B:Transverse cervical a.

 

Term

 

 

Latissimus dorsi

 

(Superficial)

Definition

F:Extends, adducts, and medially rotates humerus

 

O:Thoracolumbar fascia

 

I:sulcus of humerus

 

N:Thoracodorsal Nerve

 

B:Thoracodorsal A

Term

 

 

Rhomboid major

 

(Superficial)

Definition

F: rotate scapula, adducts scapula toward vertebral column

 

O:spinous processes of T2-T5

 

I:Medial border of scapula

 

N:Dorsal scapular

 

B:Transverse cervical a.

Term

 

 

Rhomboid minor

 

(Superficial)

Definition

F:rotate scapula, adducts scapula toward vertebral column

 

O:spinous processes of C7-T1

 

I:Medial border of scapula

 

N:Dorsal scapular

 

B:Transverse cervical a.

Term

 

 

Levator scapulae

 

(Superficial)

Definition

F:elevate scapula, rotate laterally

 

O:transverse processes of C1-4

 

I:upper scapula

 

N:Dorsal scapular

 

B:Transverse cervical a.

Term

 

 

Serratus posterior superior

 

(Intermediate)

Definition

F:Elevates Ribs 2-5 (Respiratory aid)

 

O: Spinous processes of C7-T3

 

I:Upper border of Ribs 2,3,4,5

 

N:Anterior rami of T1-T4

 

B:????

Term

 

 

Serratus posterior inferior

 

(Intermediate)

Definition

F:Draws back Ribs 9-12 (Respiratory aid)

 

O: Spinous processes of T11-L3

 

I:Lower border of Ribs 9, 10, 11, 12

 

N:Anterior rami of T9-T12

 

B:????

Term

 

 

Splenius capitis

 

(Deep --> Superficial)

Definition

F:extend, rotate and bend H&N

 

O:Lower part of nuchal ligament, to spinous processes of C3-T4

 

I:Superior nuchal ligament and mastoid process

 

N:Posterior rami of spinal nerves

 

B:Muscular br of aorta

Term

 

 

Splenius cervicus

 

(Deep --> Superficial)

Definition

F:extend, rotate and bend H&N

 

O:Spinous processes of T3-T6

 

I:Transverse process of C2-C5

 

N:Posterior rami of spinal nerves

 

B:Muscular br of aorta

Term

 

 

Spinalis

 

(Deep -->Erector Spinae)

Definition

F:extend vertebral column

 

O:Spinous processes of C6-L2

 

I:spinous processes of C2-T8

 

N:Posterior rami of cervical/thoracic spinal nerves

 

B:Muscular br of aorta

Term

 

 

Longissimus

 

(Deep -->Erector Spinae)

Definition

F:extend and laterally flexes vertebral column

 

O:Transverse processes of T8-L5

 

I:mastoid process to transverse processes of thoracic vertebrae

 

N:Posterior rami of cervical/thoracic/lumbar spinal nerves

 

B:Muscular br of aorta

Term

 

 

Iliocostalis

 

(Deep -->Erector Spinae)

Definition

F:extends, laterally flexes and rotates vertebral column

 

O:Cervical (ribs) to lumbar(iliac crest), outermost of erector spinae

 

I:inferior border/ angles of ribs, transverse processes in cervical

 

N:Posterior rami of cervical/thoracic/lumbar spinal nerves

 

B:Muscular br of aorta

Term

 

 

Semispinalis capitis

 

(Deep -->Transversospinalis)

Definition

F:extend H&N and laterally flex H

 

O:transverse processes of C7-T4

 

I:sup. nuchal line and mastoid process

 

N: Posterior rami of cervical nerves

 

B:Muscular br of aorta

Term

 

 

Semispinalis cervicis

 

(Deep -->Transversospinalis)

Definition

F:extend H&N and laterally flex H

 

O:spinous processes of T3-T6

 

I:transverse processes of C2-C4

 

N: Posterior rami of C4-T5

 

B:Muscular br of aorta

Term

 

 

Multifidus

 

(Deep -->Transversospinalis)

Definition

F: bilaterally extension, rotate opposite side or vertebral column

 

O:articular processes of cervial to dorsal sacrum

 

I:spinous processes of vertebrae

 

N:posterior rami of spinal nerves

 

B:Muscular br of aorta

Term

 

 

Rotatores

 

(Deep -->Transversospinalis)

Definition

F:bilaterally extension, rotate opposite side or vertebral column

 

O:transverse process of one vertebrae

 

I:to the base of spinous process of vertebrae above

 

N:posterior rami of spinal nerves

 

B:Muscular br of aorta

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