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Skeletal system in Trunk

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Presentation on theme: "Skeletal system in Trunk"— Presentation transcript:

1 Skeletal system in Trunk

2 Body Cavities Dorsal cavity protects the nervous system, and is divided into two subdivisions Cranial cavity is within the skull and encases the brain Vertebral cavity runs within the vertebral column and encases the spinal cord Ventral cavity houses the internal organs (viscera), and is divided into two subdivisions: thoracic and abdominopelvic

3 Body Cavities

4 Vertebral column FUNCTIONS: 1. Support 2. Movement
3. Protection of CNS/PNS

5 Support

6 Movement

7 Protection of CNS/PNS

8 Bones

9 A typical vertebra

10

11 Vertebral canal

12

13

14 Intervertebral Discs

15 Intervertebral Discs herniation
Fig Posterolateral disc prolapse. (By permission from Moore K, Agur AMR 2002 Essential Clinical Anatomy, 2nd edn. Philadelphia: Lippincott Williams and Wilkins.)

16 Sacrum and Coccyx

17 JOINTS

18 Characteristic features of SVJ

19 Vertebral joints: a. between disks (symphysis) b
Vertebral joints: a. between disks (symphysis) b. between arches (synovial)

20 LIGAMENTS

21 Bony Thorax (Thoracic Cage)

22

23

24 End

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