WARM UP 1/20 1. How many bones do we have in our body? 2. How many in our head? 3. Name as many bones as you know.

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WARM UP 1/20 1. How many bones do we have in our body? 2. How many in our head? 3. Name as many bones as you know.

Ch. 7 SKELETAL BONES

206 total bones in the adult body Children – around 450 * due to some bones not yet fused EX: - wrist - ankle - pelvis - skull

CHILD’s SKULL Fontanels – areas where the major skull bones have not fused together yet AKA “soft spots” Purpose: so skull can be flexible for birth

2 Major Skeletal regions: 1. AXIAL – head neck and torso (80) 2. APPENDICULAR – arms and legs (126)

AXIAL SKULL – 28 bones total Cranium (8) Face (14) Ear (6)

SKULL FEATURES SUTURES – immovable joints between skull bones SINUS – cavity or space MEATUS – tube-shaped opening

FORAMEN – hole (for blood vessels) * foramen magnum – hole at bottom of skull, where spinal cord attaches to brain. PROCESS – projection (sticking out)

SKULL BONE LABELING FRONT VIEW 1. Suture 2. Parietal 3. Sphenoid 4. Nasal 5. Ethmoid 6. zygomatic 7.Mastoid process 8.Frontal 9.Maxilla 10.Mandible 11.Supraorbital foramen 12.Orbital foramen

13. Lacrimal 14. Infraorbital foramen 15. SKIP 16. Vomer (nasal septum) 17. Mental foramen

SIDE VIEW 1. Suture 2. Suture 3. Parietal 4. Occipital 5. Auditory meatus 6. Mastoid process 7. Styloid process 8. temporal 9. Sphenoid 10. Zygomatic 11. Mandible 12. Suture 13. Frontal 14. Lacrimal 15. SKIP 16. nasal

17. Ethmoid 18. Maxilla 19. Mental foramen 20. Zygomatic process EAR bones Malleus (hammer) Incus (anvil) Stapes (stirrup)

WARM UP 1/23 1. First two neck bones 2. “butt” bone 3. Difference between true and false ribs 4. Lower jaw bone 5. What is a foramen? 6. Name 3 parts of a vertebrae 7. 3 parts of the sternum

ANTERIOR (front) 1. Cranium or skull (28) 2. Cervical vertebrae (7) 3. Clavicle 4. Scapula 5. Sternum (3) 6. Humerus 7. Rib (24) 8. Ulna 9. Radius 10. Ilium 11. Ischium 12. Carpals (16 total) 13. Metacarpals (10 total) 14. Phalanges (28 total) 15. Pubic 16. Femur 17. Patella 18. Tibia 19. Fibula 20. Tarsal 21. Metatarsal (10 total) 22. Phalanges (28 total) 23. Sacrum 24. coccyx 25. pubic symphysis

POSTERIOR (back) 1. Scapula 2. Humerus 3. Ulna 4. Radius 5. Pubic Femur 8. Fibula 9. Tibia 10. Calcaneous Cervical vertebrae (7) 13. Clavical 14. Thoracic vertebrae (12) 15. Olecranal process 16. Lumbar vertebrae (5) 17. Ilium 18. Sacrum 19. Coccyx 20. Carpals 21. Metacarpals 22. phalanges

1. Neck bones 2. Shoulder blade 3. Collar 4. Tailbone 5. Breastbone 6. Upper leg 7. Shin 8. Knee 9. Wrists 10. Hand 11. Lower leg to ankle Fingers and toes Ankle Feet Hip Upper arm Bone to pinky Bone to thumb Elbow Middle back Lower back Heel butt Lower jaw Forehead Cheek Upper jaw Back of head Top of head Bone behind eye Side of eye Side of head (2)

SKULL BONES 1.Frontal 2.Sphenoid 3.Nasal 4.Zygomatic arch 5.Maxilla 6.Mandible 7.Mental foramen 8.Nasal septum 9.Infraorbital foramen 10.Orbital

11. Parietal 12. Suture 13. Occipital 14. Mastoid process 15. Styloid process 16. Zygomatic process 17.Temporal 18.Sphenoid 19.Mandible 20.Mental foramen 21.Maxilla