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ChapA4.1

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Information about ChapA4.1

Published on January 8, 2008

Author: stviator4b

Source: slideshare.net

Description

Muscular and Skeletal System
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The Skeletal and Muscular Systems

Structures of the Body cells: the building blocks of life make up your body many types of cells bone cells, muscle cells, blood cells, and nerve cells tissue: cells of the same type working together bone cells make bone tissue/muscle cells make up muscle tissue organs: body parts that do special jobs tissues of different kinds work together in organs bone tissue and other tissue form organs of bones muscle tissue and other tissue form organs of muscles

cells: the building blocks of life

make up your body

many types of cells

bone cells, muscle cells, blood cells, and nerve cells

tissue: cells of the same type working together

bone cells make bone tissue/muscle cells make up muscle tissue

organs: body parts that do special jobs

tissues of different kinds work together in organs

bone tissue and other tissue form organs of bones

muscle tissue and other tissue form organs of muscles

systems: groups of organs working together bones (type of organ) work together to make the skeletal system muscles (type of organ) work together to make the muscular system

systems: groups of organs working together

bones (type of organ) work together to make the skeletal system

muscles (type of organ) work together to make the muscular system

The Skeletal System your body is made up of many bones bones support your body and give it shape help you move and protect the organs inside your body bones meet at joints some open and close like hinge of a door your knee other joints let a bone move in many directions your shoulder

your body is made up of many bones

bones support your body and give it shape

help you move and protect the organs inside your body

bones meet at joints

some open and close like hinge of a door

your knee

other joints let a bone move in many directions

your shoulder

The Muscular System body has 3 types of muscles skeletal muscles move head, arms, legs, fingers, toes can’t push, only pull work in pairs control skeletal muscles by thinking cardiac muscles muscle your heart is made of muscle works without your thinking about it smooth muscles help organs inside your body do their job muscle works without your thinking about it all muscles move parts of your body do this by getting longer and shorter

body has 3 types of muscles

skeletal muscles

move head, arms, legs, fingers, toes

can’t push, only pull

work in pairs

control skeletal muscles by thinking

cardiac muscles

muscle your heart is made of

muscle works without your thinking about it

smooth muscles

help organs inside your body do their job

muscle works without your thinking about it

all muscles move parts of your body

do this by getting longer and shorter

A Closer Look at Muscles striated muscles skeletal muscle with light and dark stripes stripes patterns made by working parts of muscle cell fibers in skeletal muscle can be up to 30 cm (12in) long some muscles have more than 2000 fibers packed together

striated muscles

skeletal muscle with light and dark stripes

stripes patterns made by working parts of muscle cell

fibers in skeletal muscle can be up to 30 cm (12in) long

some muscles have more than 2000 fibers packed together

smooth muscle does not have stripes found in walls of organs stomach,intestines, blood vessels, bladder work by squeezing and relaxing slowly and smoothly fibers are shorter than skeletal muscles cardiac muscle stripes but not as many as skeletal (striated) makes up walls of heart squeezes and relaxes without ever stopping never gets tired

smooth muscle

does not have stripes

found in walls of organs

stomach,intestines, blood vessels, bladder

work by squeezing and relaxing slowly and smoothly

fibers are shorter than skeletal muscles

cardiac muscle

stripes but not as many as skeletal (striated)

makes up walls of heart

squeezes and relaxes without ever stopping

never gets tired

Summary the body is made up of basic parts called cells cells make up tissues tissues make up organs organs make up systems skeletal and muscular systems work together to help the body move

the body is made up of basic parts called cells

cells make up tissues

tissues make up organs

organs make up systems

skeletal and muscular systems work together to help the body move

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