Dem Bone ID training lab

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Presentation transcript:

Dem Bone ID training lab https://www.youtube.com/watch?v=Ns91jtuPHZI

The Skeletal System Parts of the skeletal system include: Bones (skeleton) Joints Cartilages Ligaments Divided into two divisions: Axial skeleton (skull, ribs and vertebra) Appendicular skeleton (pelvis, extremities)

Functions of Bones Support of the body Protection of soft organs Movement due to attached skeletal muscles Storage of minerals and fats Blood cell formation

Bones of the Human Body The adult skeleton has 206 bones Two basic types of bone tissue Compact bone Homogeneous Spongy bone Small needle-like pieces of bone Many open spaces Figure 5.2b

Classification of Bones on the Basis of Shape Figure 5.1

Classification of Bones Long bones Typically longer than wide Have a shaft with heads at both ends Contain mostly compact bone Examples: Femur, humerus Short bones Generally cube-shape Contain mostly spongy bone Examples: Carpals, tarsals

Classification of Bones Flat bones Thin and flattened, usually curved Thin layers of compact bone around a layer of spongy bone Examples: Skull, ribs, sternum Irregular bones Irregular in shape Do not fit into other bone classification categories Example: Vertebrae and hip

Dorsal vs Ventral Medial vs Lateral

Superior vs Inferior

Structures of a Long Bone Articular cartilage Covers the external surface of the epiphyses Made of hyaline cartilage Decreases friction at joint surfaces Figure 5.2a

Common Types of Fractures Table 5.2

Stages in the Healing of a Bone Fracture Figure 5.5

The Hyoid Bone The only bone that does not articulate with another bone Serves as a moveable base for the tongue Figure 5.12

The Bony Thorax Made-up of three parts Sternum Ribs Thoracic vertebrae Figure 5.19a

The Skull Figure 5.7

Bones of the Skull Figure 5.11

Human Skull, Superior View Figure 5.8

Human Skull, Inferior View Figure 5.9

Bones of the Shoulder Girdle Figure 5.20a–b

Bones of the Upper Limb The arm is formed by a single bone Humerus Figure 5.21a–b

Bones of the Upper Limb The forearm has two bones Ulna Radius Figure 5.21c

Bones of the Upper Limb The hand Carpals – wrist Metacarpals – palm Phalanges – fingers Figure 5.22

Bones of the Pelvic Girdle Hip bones Composed of three pair of fused bones Ilium Ischium Pubic bone The total weight of the upper body rests on the pelvis Protects several organs Reproductive organs Urinary bladder Part of the large intestine

The Pelvis Figure 5.23a

The Pelvis: Right Coxal Bone Figure 5.23b

Gender Differences of the Pelvis Figure 5.23c

Bones of the Lower Limbs The thigh has one bone Femur – thigh bone Figure 5.24a–b

Bones of the Lower Limbs The leg has two bones Tibia Fibula Figure 5.24c

Bones of the Lower Limbs The foot Tarsus – ankle Metatarsals – sole Phalanges – toes Figure 5.25