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SkeletalSystemIsabelBlackwood (Skeletal Systems and Tissue (Functions of…
SkeletalSystemIsabelBlackwood
Skeletal Systems and Tissue
Functions of Skeletal System
Support
Tendons, Ligaments, Framework for Soft Tissue
Movement
With help of Muscles
Protection
Cranium, Ribcage, Vertebrae
Mineral Storage
Calcium and Phosphate
Blood Cell Formation
Red Bone Marrow
Energy Storage
Fatty Yellow Bone Marrow
Structural Components of Skeletal System
35% Organic Materials
Cells, Extra Cellular Matrix
65% Inorganic Materials
Minerals
Compact Bone
Composed of Osteons
On the outer part of every bone
Components of a Long Bone
Contains Yellow Bone Marrow
Longer than it is wide
Vascular
Bone Marrow
Red Bone Marrow
Yellow Bone Marrow
Types of Bone Cells
Osteogenic Cells
Osteoblast
Osteocyte
Osteoclasts
Spongy Bone
No Osteons
Composed of Trabeculae and osteocytes
In the ends of Long Bones and inside all other bones
Location of Red bone marrow
Skeletal Muscle
Functions
Produce Movement
Bones
Blood
Hallow Organs
Open and Close Passages in the Body
Sphincter
Urethra
Iris
Maintain Posture
Stabilize Joints
Generate Heat
Properties
Contractility
Generate tension from pulling
Excitability
Responds to stimuli
Extensibility
Can extend muscles
Elasticity
Can return to original shape
Connective Tissue Layers
Endomysium
Composed of Reticular FIbers
Creates space for blood vessels
Perimysium
Composed of Dense Irregular Connective Tissue
Covers Each Fascicle
Contains Blood Vessels
Epimysium
Composed of Dense Irregular Connective Tissue
Binds Fascicles together
Deep Fascin
Binds groups of muscles together
Composed of Dense Irregular Connective Tissue
Components of a Skeletal Fiber
Sarcolemma
Transverse Tubles
Sarcoplasmic Reticulum
Myofibrils
Mitochondria
Microfibrils
Joints
Fibrous Joints
Sutures
Syndesmosis
Gomphosis
Cartilaginous Joints
Syndchrondosis
Symphysis
Synovial Joint Components
2 Layers of Membrane
Synovial fluid
Six Structural Types of Synovial Joints
Plane Joint
Hinge Joint
Pivot Joint
Condylar Joint
Saddle Joint
Ball and Socket Joint