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Human Skeletal System
- 1. HUMAN SKELETON SYSTEM ALL LOCOMOTIONS ARE MOVEMENTS BUT NOT ALL MOVEMENTS ARE NOT LOCOMOTION
- 2. LIGAMENT Bone to bone attachment TENDON Muscle to bone
- 3. What are the 5 Functions of the Skeletal What are the 5 Functions of the Skeletal System? System? ● 1. Movement: 1. Movement: Skeletal system provides points of attachment for Skeletal system provides points of attachment for muscles. Your legs and arms move when the muscles pull on muscles. Your legs and arms move when the muscles pull on the bones. the bones. ● 2. Support: 2. Support: The backbone is the main support center for the The backbone is the main support center for the upper body. It holds your head up and protects your spinal cord. upper body. It holds your head up and protects your spinal cord. ● 3. 3. Protection: Protection: The bones of your skull protect your brain. Your The bones of your skull protect your brain. Your ribs protect your lungs and heart from injury. ribs protect your lungs and heart from injury. ● 4. 4. Makes Blood: Makes Blood: Red and white blood cells are formed by tissue Red and white blood cells are formed by tissue called marrow, which is in the center of the bone. called marrow, which is in the center of the bone. ● 5. 5. Storage: Storage: Bones store minerals, such as calcium and Bones store minerals, such as calcium and phosphorus, and its used by the body. phosphorus, and its used by the body.
- 7. Epiphysis - growing end Diaphysis - shaft Periosteum - outside covering Medullary - inner space containing bone marrow Endosteum - lining of medullary cavity Bone structure
- 9. A X I A L BONES A X I A L BONES Skull Skull [Cranium (8)+Face (14)] 22 [Cranium (8)+Face (14)] 22 Hyoid(1) 1 Hyoid(1) 1 Ossicles Ossicles (3 in each ear) (3 in each ear) 6 6 Vertebrae (C7,T12,L5,S1,Co1) 26 Vertebrae (C7,T12,L5,S1,Co1) 26 Ribs(12 pairs)+sternum(1) Ribs(12 pairs)+sternum(1) 25 25 80 80
- 10. PEST OF (8)
- 12. Veer Can’t Make My Pet Zebra Laugh
- 14. 1 HYOID BONE
- 16. SIM
- 18. VERTEBRAL COLUMN
- 21. RIBS+ STERNUM
- 22. APPENDICULAR BONES APPENDICULAR BONES Upper Extremities Upper Extremities Lower Extremities Lower Extremities C Clavicle lavicle 2 2 Hip bone Hip bone 2 2 Scapulae Scapulae 2 2 Femur Femur 2 2 Humerus Humerus 2 2 Patella Patella 2 2 Radius Radius 2 2 Tibia Tibia 2 2 Ulna Ulna 2 2 Fibula Fibula 2 2 Carpals 16 Carpals 16 Tarsals Tarsals 14 14 Metacarpals 10 Metacarpals 10 Metatarsals Metatarsals 10 10 Phalanges Phalanges 28__ 28__ Phalanges Phalanges 28__ 28__ 64 64 62 62 Upper extremities = 64 Lower extremities = 62 126
- 25. CARPAL BONES TARSAL BONES MNEMONIC TO REMEBER CARPAL AND TARSAL
- 28. 1.The connections between the skull bones of adults that are immovable? SUTURES 2.separates occipital from the parietal bone? Lambdoid Suture 3.Attaches the frontal bone to the parietal bones of either sides? Coronal Suture 4.Consists of occipital, parietal, and frontal bones? The calvaria(skullcap) 5.Extends from lambdoid suture to the coronal suture, between the parietal bones? Sagital Suture 6.Forms the boundary between the temporal bone and the parietal bone? Squamous Suture 7. Are the site of articulation between the skull and first vertebrae of the neck? Occipital condyles 8. Attachment site of muscles and ligaments? Inferior and superior nuchal lines 9.Connects the cranial cavity with the vertebral canal, which is enclosed by the vertebral column. This foramen surrounds the connection between the brain and spinal cord? Foramen magnum 10.For hypoglossal nerves? Hypoglossal canals 11.Other parietal bone:• Occipital bone• Temporal bone• Frontal bone • Sphenoid? Articulations of parietal bones 12.Superior and inferior temporal lines:- to attach temporalis muscle • Grooves for cranial blood vessels? Marks of the parietal bones