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Thorax. Arthrology  Typical Rib  Head (two facets)  Neck  Tubercle (facet)  Angle  Proximal end – costal cartilage.

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Presentation on theme: "Thorax. Arthrology  Typical Rib  Head (two facets)  Neck  Tubercle (facet)  Angle  Proximal end – costal cartilage."— Presentation transcript:

1 Thorax

2 Arthrology  Typical Rib  Head (two facets)  Neck  Tubercle (facet)  Angle  Proximal end – costal cartilage

3 Typical Rib

4 Anterior articulations of ribs  Rib 1 to sternum (manubrium) –Fibrous joint –No movement  Ribs 2 – 7 true ribs –Synovial (gliding) joints –Radiate sternocostal ligaments  Ribs 8-10 = false, articulate with 7  = floating

5 Sternum

6 Rib Articulations

7 Rib Articulations (Posterior)

8 Posterior Joints  Superior costal facet with inferior articular facet of T vertebrae above  Inferior costal facet with superior facet of rib with same number  Facet on tubercle with transverse process of T vertebrae of same number  Radiate ligaments (head)  Costotransverse ligaments (tubercle with transverse process)

9 Posterior Joints

10

11 CostoVertebral Joints

12

13

14 Muscles associate with the ribs  Intercostals –External –Internal –Innermost  Transversus thoracicis  Levatores costarum

15 Muscles

16

17 Innervation/Blood Supply

18

19 Muscles/Nerves

20 Levatores Costarum

21 Muscles

22 Diaphragm  Origin  Insertion  Nerve Supply (Phrenic C3, C4 bilaterally)

23 Diaphragm

24

25

26

27 Phrenic Nerve

28 Combined actions of mm of respiration  Inspiration –Diaphragm –External intercostals –Levatores costorum –Accessory – SCM, Scalenes  Expiration –Mostly passive –Abdominals –Internal intercostals

29 MM of Respiration

30 Abdominal Muscles  Anterior Abdominal Wall  Skin/Subcutaneous fascia-fat  Rectus Sheath –Rectus abdominus –External obliques –Inguinal ligament  Inguinal canal – contents -hernia

31 Fascia

32

33 Rectus Sheath/Fascia

34

35 Muscles

36

37

38

39 Inguinal Ligament

40 Inguinal Ligament/Canal

41

42

43 Inguinal Canal/Femoral Sheath

44 Spermatic Cord

45

46 Femoral Nerve, Artery and Vein

47 Dermatomes

48 Abdominals  Anterior wall continued –Internal obliques –Transversus abdominus

49 Internal Oblique

50 Transversus Abdominus

51 Posterior Abdominal Wall  Quadratus Lumborum  Psoas Minor  Psoas Major  Iliacus

52 Posterior Abdominal Wall

53

54 Quadratus Lumborum  O: Iliac Crest – Laterally  I: 12 th rib, transverse process of lumbar vertebrae  A: Side bending of trunk; Reverse = elevation of pelvis, AKA hip hiking  N: Anterior rami of lumbar nerves


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