Movement & Support
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What does integument include?
Skin & Derivatives
Gives rise to most derivatives of integument
What are derivatives of integument? (4)
Hair, feathers, claws, horns
Function of Integument (5)
What is Epidermis composed of?
Stratified squamos epithelium
What is Dermis composed of?
Dense connective tissue
What might the dermis contain?
Bones of dermal origin
What could be found in the dermis?
Chromatophores (pigment cells)
Function of Skeletal Systems (3)
Provide rigidity to body
surfaces for muscles attachment
protection for internal oragans
Body fluid is used as an internal hyrdrostatic skeleton
Muscles in body wall contract against the coelemic fluids that are incompressible
Provide rigid elements to which muscles attach
Protective skeleton that often must be molted to allow growth
Echinoderms & Vertebrates
Vertebrate endoskeleton is composed of bone & cartilage
What animals are composed of cartilage?
Jawless fish & elasmobranches (sharks)
Found on surface of bone joints of adult vertebrates.
Type of connective tissue with calcified extracellular matrix
Function of Bones
Protection & Support
Reservoir for calcium
Blood cell production
Protists & Comb Jellies use it to move fluid for respiration & other functions
Action produces different whip-like movement
Skeletal Muscle Tissue (4)
Attached to skeleton
What is each skeletal muscle composed of?
Each fosicle is a bundle of skeletal-
Skeletal Muscle Fibers (3)
What does each muscle fiber contain a bundle of?
What is the membrane that surrounds each myofibril?
Two filaments of
Thin filament composed of
Thick filament composed of
Unit of the myofibril whose function is contractile
Where are the
Found in a series along the myofibril
Movement & Support
Zoology Movement Support
Understand how different organ systems allow for movement