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Flashcards in Muscles of respiration Deck (17):
1

Origin of Scalenes?

Transverse processes for C2 to C7 of Cervical vertebrae

2

Insertion of Scalenes?

1st & 2nd Rib

3

Scalenes role in inspiration?

Contraction - elevating ribs

4

Sternocleidomastoid origin?

Manubrium of sternum/clavicle

5

Sternocleidomastoid insertion?

Mastoid process of temporal bones of skull

6

Pectoralis Minor Origin?

3rd to 5th ribs

7

Pectoralis Minor Insertion?

Coracoid process of scapula

8

Role of Pectoralis Minor in inspiration?

Elevates 3rd to 5th rib and expands ribs

9

Pectoralis Major Description?

Fan shaped muscles which sit on top of the Pectoralis minor

10

Role internal intercostals in expiration?

Lowers rib cage and moves it inwards

11

Origin of Internal Intercostals?

Superior border of ribs

12

Insertion of Internal Intercostals

Inferior border of ribs

13

Role of the Oblique's

Return chest wall into place
Affects the lower 8 ribs

14

Role of the Rectus Abdominus

Attach sternum to pelvic girdle

15

Role of Quadratus Lumborum

Connects Pelvis to spine
Depresses the thoracic rib cage

16

Origin of Quadratus Lumborum

Transverse processes of  L1 – L4, the ilolumbar ligament, posterior third of the iliac crest

17

Insertion of Quadratus Lumborum

Inferior border of the 12th rib