Locomotion Topic 14.

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Presentation transcript:

Locomotion Topic 14

Locomotion Locomotion: the ability to move from place to place Motile: able to move Sessile: unable to move

Advantages of Motility Obtain food Migrate Find shelter Escape predators Mating

Exoskeleton Outside Made of CHITIN Shell does not grow Animals must molt, remove old shell and grow new shell

Horseshoe Crab Molting http://www.youtube.com/watch?v=Daz8nkh-pWM

Endoskeleton Inside Made of bone and cartilage Mammals, reptiles, amphibians, & birds

Cartilage Connective Tissue Soft and Flexible Found in: Ears Nose Larynx Trachea Between Vertebrae

Joints Places where bones meet Types: Immovable Hinge Ball & Socket Pivot Gliding

Ligaments- attach bone to bone Tendons- attach muscle to bone

Skeletal Muscle Voluntary Attach to skeleton Work in pairs

Visceral Muscle Involuntary Lining of digestive tract & blood vessels aka SMOOTH MUSCLE Involuntary Lining of digestive tract & blood vessels

Cardiac Muscle Involuntary Found in Heart ♥