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Skeletal System.pptx
- 2. HealthCare Academy Objectives At the completion of this lesson, the EMT Students will be able to: Learn the functions of skeletal System. Differentiate between Axial and Appendicular skeleton. Differentiate between cranial and facial bones. Describe the structure of vertebral Column. Identify the bones forming thoracic cage. Name the bones of upper limb. Name the bones of lower limb. List 206 bones of the body.
- 3. Skeletal System HealthCare Academy Parts of skeletal System Bones (skeleton) Joints Cartilages Ligaments (bone to bone) Tendon (bone to muscle)
- 4. HealthCare Academy Skeletal System Divided into two divisions Axial skeleton- Skull, spinal column Appendicular skeleton- Limbs and Girdle
- 5. HealthCare Academy Axial Skeleton Axial Skeleton supports and protects organs of head, neck and trunk. It consists of:- • Skull (cranium and facial bones) • Hyoid Bone (anchors tongue and muscles associated with swallowing) • Vertebral Column (vertebrae and disks) • Bony Thorax (ribs and sternum)
- 6. HealthCare Academy Axial Skeleton Axial means around the axis
- 7. HealthCare Academy Appendicular Skeleton Appendicular skeleton includes bone of limbs and bones that anchor them to the axial skeleton. They are:- • Pectoral girdle (clavicle, scapula) • Upper limbs (arms) • Pelvic girdle (sacrum, coccyx) • Lower limbs (legs) • Articulation-where joints meet, connect, and are formed.
- 8. HealthCare Academy Appendicular Skeleton Appendicular means attached to something large
- 11. HealthCare Academy Lets Study Axial Skeleton First (80 Bones)
- 12. The Axial Skeleton HealthCare Academy Forms the longitudinal part of the body. Divided into 3 parts Skull Vertebral Column Rib Cage
- 13. HealthCare Academy The Skull (22 Bones) Skull bones are divided into:- Facial Bones (14 Bones) Cranial Bones (8 Bones)
- 15. HealthCare Academy 1 Frontal bone 2 Parietal bone 2 Temporal bone 1 Occipital bone 1 Sphenoid bone 1 Ethmoid bone Cranial Bones
- 16. HealthCare Academy Facial Bones 2 Maxilla 2 Zygomatic bones 2 Lacrimal bones 2 Nasal bones 2 Inferior nasal conchae 2 Palatine bones 1 Vomer 1 Mandible
- 17. HealthCare Academy Hyoid Bone (1 Bone) • Hyoid bone is also known as lingual bone. • It is a horse-shoe shaped bone. • Situated in the anterior midline of the • neck between the chin and thyroid cartilage. Hyoid Bone Larynx
- 18. HealthCare Academy Auditory Ossicles (6Bones) Auditory ossicles are the three smallest bones in the human body. The term “Ossicles” literally means “tiny bones” and commonly refers to the auditory ossicles, though the term may refer to any small bone throughout the body.
- 19. Vertebral Column (26Bones) HealthCare Academy Functions o Axial support for the body and balance. o Protect spinal cord. o Flexible motion.
- 20. HealthCare Academy Cervical Vertebrae • 7 in numbers • Identified as C-1 to C-7 • First 2 are called atlas and axis because they perform different functions
- 21. Cervical Region HealthCare Academy • Neck region. • Protects the brain stem and the spinal cord. • Support the skull. • Very mobile:- o Is responsible for movement of the head. o Allows for a wide range of movement
- 22. HealthCare Academy Thoracic Vertebrae Larger than cervical vertebrae Articulate to ribs T-1 to T-12
- 23. HealthCare Academy Lumbar Vertebrae • L-1 to L-5 • Massive blocks-like bodies • Short-hatchet shaped spinous process
- 42. HealthCare Academy • Femur is the largest, longest and Strongest bone in the body. • Head fits in Socket (acetabulum) of pelvis. • Neck is weakest. • Greater trochanter. • Distal: Lateral & medial condyles and epicondyles. • Patella: sesmoid bone.
- 46. HealthCare Academy Now Can you tell ?
- 47. Radio Ulnar Joint HealthCare Academy