1 / 26

Lab 4

Lab 4. Bones and Axial Skeleton James F. Thompson, Ph.D. Lab 4 Activities. bone and hyaline cartilage slide and osteon model compact/dense bone vs. spongy/cancellous bone general anatomy of a long bone bone classification and bone markings

damita
Download Presentation

Lab 4

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Lab 4 Bones and Axial Skeleton James F. Thompson, Ph.D.

  2. Lab 4 Activities bone and hyaline cartilage slide and osteon model compact/dense bone vs. spongy/cancellous bone general anatomy of a long bone bone classification and bone markings identify sample bones by general shape the axial skeleton - identify bones and bone markings listed in lab guide

  3. Functions of Bones • Support - framework for body • Protection • protect many internal organs • cranial bones surround the brain; vertebrae surround the spinal cord; pelvic girdle surrounds the reproductive organs • Movement - muscle attachments to bones • Mineral homeostasis - Ca++, PO-4 stored • Site of blood cell production - hematopoiesis in red bone marrow

  4. Hyaline Cartilage

  5. Elastic Cartilage

  6. Fibrocartilage

  7. Macroscopic Bone Structure • Diaphysis • shaft of a long bone • contains medullary or marrow cavity; • infants have red (hematopoietic) bone marrow • red marrow gradually replaced by yellow (fatty) bone marrow throughout life • Epiphysis (epiphyses) • ends of a long bone • epiphyseal plate - growth plate • nutrient foramen - site of blood vessel entry into bone • articular cartilage - hyaline cartilage covering epiphysis

  8. Types of Cells in Bone • Osteoblasts - bone forming cells • Osteocytes - mature bone cells • Osteoclasts- bone remodeling cells

  9. Types of Bone • Compact • appears very dense • Spongy • small struts of bone = trabeculae are generally oriented with the directions of stress

  10. Spongy Bone

  11. Compact Bone - Osteons • Perforating (Volkman’s) canals • Central (Haversian) canals • Osteon • central canal with lamellae • lacunae • osteocytes, & canaliculi

  12. Compact Bone – Microscopic View

  13. Bone Tissue (dried)

  14. The Axial Skeleton (blue)

  15. The Fetal Skull

  16. Anatomy of the Lateral Aspects of the Skull

  17. Anatomy of the Medial Aspects of the Skull

  18. Anatomy of the Inferior Portion of the Skull

  19. Anatomy of the Inferior Internal Portion of the Skull

  20. The Vertebral Column Note the Double Curvature of the Spine. It is an Adaptation for Upright Posture.

  21. Ligaments and Fibrocartilage Discs Uniting the Vertebrae

  22. Examine the Vertebrae from All Angles

  23. Posterolateral View of Articulated Vertebrae Much of the Rotation of the Head Occurs at the Joint Between the Atlas (C1) and Dens of the Axis (C2).

  24. Key Differences Among Vertebral Types: Regional Characteristics of Cervical, Thoracic, and Lumbar Vertebrae For Blood Vessels Size Of Body Facets for Rib to Attach. No Facets for Rib to Attach

  25. The Bony Thorax

  26. End Lab 4 Presentation .

More Related