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Flashcards in HNS spine muscles Deck (10):
1

State the origin, insertion and function of the trapzeius

Origin - external occipital protuberance, cervical and thoracic spine
Insertion - clavicle and scapula
Function - elevate and rotate the scapula when the humerus is abducted

2

State the origin, insertion and function of the latissimus dorsi

Origin - T7 to sacrum + thoracolumbar fasica + posterior 1/3 of iliac crest
Insertion - intertubercular sulcus of humerus
Function - extedsd, adducts and medially rotates the humerus

3

State the origin, insertion and function of the Levator scapulae

Origin - transverse processes of C1-C4
Insertion - upper medial scapula
Function - elevates the scapula

4

State the origin, insertion and function of the Rhomboid major

Origin - spinous processes of T2-T5
Insertion - medial border of scapula
Function - adduct and elevate scapula

5

State the origin, insertion and function of the Rhomboid minor

Origin - spinous processes of C7-T1
Insertion - medial border of scapula
Function - adduct and elevate scapula

6

State the origin, insertion and function of the serratus posterior superior

Origin - C7-T3
Insertion - upper border of ribs 2-5
Function - elevates ribs 2-5

7

State the origin, insertion and function of the serratus posterior inferior

Origin - T11-L3
Insertion - lateral inferior margins of ribs 9-12
Function - depresses ribs 9-12 and prevents lower limb from elevating when the diaphragm contracts.

8

State the location and function of the spinotransversales

Location - The two spinotransversales muscles run from the spinous processes up to T6 and ligamentum nuchae, running superiorly and laterally
Function - Extensors and rotators of the head and neck

9

State the location and function of the erector spinae and transversospinales

Location - Erector spinae lie posterolaterally to the vertebral column between the spinous processes medially and the angles of the ribs laterally
Location - transversospinales run obliquely upward and medially from the transverse process to the spinous process
Function - extensors and rotators of the spinal column

10

State the location and function of the interspinales and intertransversarii

Location - interspinales pass between adjacent spinous processes
Location - intertransversarii pass between adacent transverse processes
Function - Short segmental muscles that are the stabilisers of the vertebral column