Small Animal Skeletal Systems
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Transcript of Small Animal Skeletal Systems
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SMALL ANIMAL SKELETAL SYSTEMS
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Functions of the Skeletal System
• Form• Protection• Support• Strength
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How does it work?• Bone- Hard tissue that supports and protects other organs
• Cartilage- Firm, flexible tissues that are not as hard as bone
• Ligaments- Tissue that connects bone to bone
• Tendons- Tissue that connects bone to muscle
• Joints- Where bones meet and allows for movement
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Bones• Spongy bone
• Fills ends of bones and lines hollow portions• Red marrow
• Inside cavities of spongy bone, formation of red blood cells
• Yellow marrow• Fat and energy storage
• Compact bone • Layer of hard mineral matter, Calcium, gives bones
strength• Periosteum
• Outer most layer, Cushions the hard portion of the bone, Repair of broken bones
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Joints
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Joints
Plane Joint
Hinge Joint
Ball&Socket JointHinge Joint
Ellipsoid Joint
Ball&Socket Joint
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Parts of the Skeleton• Axial - central axis bones• Pectoral - bones of the fore limbs• Pelvic - bones of the hind limbs
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Bones of the Axial Skeleton• Skull
• Maxilla• Mandible
• Vertebrae• Cervical Vertebrae• Thoracic Vertebrae• Lumbar Vertebrae• Sacrum• Caudal Vertebrae
• Ribs• Sternum
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Maxilla
Thoracic Cervical
Caudal
Lumbar
Mandible
SacrumRibs Sternum
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Bones of the Pectoral Skeleton• Scapula• Humerus• Radius• Ulna• Carpus• Metacarpus• Phalange
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Scapula
HumerusRadius
UlnaCarpusMetacarpus
Phalange
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Bones of the Pelvic Skeleton • Pelvis
• Ilium• Ischium
• Femur• Patella/Rotula• Tibia• Fibula• Tarsus• Metatarsus• Phalange
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Phalange
MetatarsusTibia
Tarsus
FibulaPatella
FemurIschium
IliumPelvis
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LETS LOOK AT THE SKELETAL SYSTEMS OF
DIFFERENT SMALL ANIMALS!!
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Dog
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Cat
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Rabbit
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Rat
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CAN YOU NAME THE BONES?
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Dog 1
543
2
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Cat
15
4
32
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Rabbit
1
5 4
32
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Rat
1
54
32