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Body Systems

Human Body Systems Intro
by

Victoria Manistre

on 10 December 2014

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Transcript of Body Systems

Body Systems
The Nervous
System
Circulatory
System
Skeletal / Muscular
System
Excretory
System
Functions
:
Transports materials to body tissues
Removes waste from body tissues
Helps maintain homeostasis (regulates temperature, pH, and levels of chemicals)
Helps fight infection (white blood cells)
Organs: heart, blood vessels, blood
Red Blood Cells- Carry Oxygen
White Blood Cells- Fight Infection
Cardiac Muscle Cells (pictured below)
Circulatory System Specialized Cells
Nerve Cell
Nervous System Specialized Cells
Function
Respond to stimuli
Transmit electrical impulses
See taser video
Sensory organs to:
find prey
avoid predator
find a Mate

Organs: Nerves, Spinal cord, Brain
Interact to produce movement
Body parts/Organs:
Muscles – pull the bones to move them
Bones – provide the structure/ support protection
Functions
Muscle Cells – muscle cells form long fibers that contract to pull on bones



Bone Cells – Very dense but has hollow areas for blood vessels
Muscular/skeletal Specialized Cell Types
Waste leaves the cell by diffusion through a selectively permeable membrane
Organs: Kidney, lungs, skin, cell membrane
Function
(water, salt, some urea)



to allow for gas exchange
Excretory System Specialized Cell Types
Produces hormones (chemicals) that help the body maintain homeostasis

Organs: glands
Function
Endocrine
System
Feedback
Insulin is a hormone in your body to help regulate blood sugar levels to maintain homeostasis.
Jelly fish like these don't have an excretory system.
Instead they use diffusion to remove waste.
Nervous system responds to stimulus (flame) and sends signal to muscular system to move.
Full transcript