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Histology & Skull Anatomy Review Lab

Assess knowledge of histology and learn about skeletal anatomy through practical lab exercises on the skull.

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Histology & Skull Anatomy Review Lab

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  1. Review Histology lab practical Skeletal system Anatomy Notes – Skull anatomy "I'm a big believer in punctuality, though it makes me very lonely." E. Verral Lucas To assess knowledge of histology and learn about skeletal anatomy Title: Anat & Phys 9/22/06 Class Topics Objectives: Thursday, January 2, 20206:51 AM

  2. Class Assignments What By When • Skeletal Anatomy Quiz 9/26/06 • Due this class period • Due next class period • Due in the future

  3. Cranium - 8 1 Frontal 2 Parietal 1 Occipital 2 Temporal 1 Ethmoid 1 Sphenoid Ear Ossicles - 6 2 Malleus 2 Incus 2 Stapes Facial - 14 2 Zygomatic 2 Maxilla 2 Nasal 2 Nasal Conchae 2 Palatine 2 Lacrimal 1 Vomer 1 Mandible Hyoid 1 1 Hyoid bone Axial Skeleton

  4. Axial Skeleton • Ribs - 25 • 24 ribs (12 on each side) • 1 Sternum • Vertebrae - 26 • 7 Cervical • 12 Thoracic • 5 Lumbar • 1 Sacrum • 1 Coccyx

  5. Pectoral Girdle (4) 2 scapula 2 clavicle Upper limbs (60) 2 humerus 2 radius 2 ulna 16 carpals 10 metacarpals 28 phalanges Pelvic Girdle (2) 2 os coxa Lower limbs (60) 2 femur 2 tibia 2 fibula 2 patella 14 tarsals 10 metatarsals 28 phalanges Appendicular Skeleton

  6. All the Bones • Axial Skeleton • Appendicular Skeleton • Total Bones

  7. Condyle Facet Fissure Foramen Fossa Process Spine Trochanter Tubercle Tuberosity Suture Head Neck Diaphysis Epiphysis Terminology

  8. Frontal Bone • Superior, anterior bone of skull (Forehead) • Contains supraorbital foramen • blood and nerves for forehead • Connects to parietal bones at coronal suture • Frontal sinus • Superior section of orbits of eyes

  9. Parietal Bone • Meet at superior margin (top) with saggital suture • Joins with frontal at coronal suture • No foramen

  10. Occipital bone • Posterior and inferior region (back and floor) of cranium • Meets with parietal at lambdoidal suture • Contains foramen magnum • exit for spinal cord • guarded by occipital condyles • articulates with the atlas (1st cervical vertebrae) • External occipital protuberance

  11. Temporal Bone • Meets with parietal at squamosal suture • contains external auditory meatus • ear canal • mandibular fossa • articulation with mandible • Zygomatic process • Posterior region (back part) of zygomatic arch • Cheek bone

  12. Temporal Bone (cont.) • Mastoid process • Anchor for neck muscles • sternocleidomastoid • Styloid process • anchors for muscles of tongue and pharnyx

  13. Sphenoid bone • Posterior region of orbits, inferior region of cranium (lower walls and floor) • Contains optic foramen • opening for optic nerve • Superior and inferior orbital fissures • nerves and blood to eyes • Sella turcica (Turkish saddle) • houses the anterior pituitary gland • Sphenoid sinus

  14. Ethmoid bone • Makes up nasal septum and divides cranial cavity from nasal cavity • splits into some of nasal conchae • Cribriform plate • for passage of olfactory nerves • Crista Galli (Rooster’s comb) • Projection in the middle of the cribriform plate • Ethmoid sinus

  15. Ethmoid bone

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