muscle powerpoint

Muscular SystemMuscular System

There are about 600 muscles in your body.

There are about 600 muscles in your body.

Muscle ControlMuscle Control

Involuntary Muscle: Not under conscious control.

Heart beat, digestion

Voluntary Muscle: Under your control.

Walking, jumping, etc.

Involuntary Muscle: Not under conscious control.

Heart beat, digestion

Voluntary Muscle: Under your control.

Walking, jumping, etc.

3 Types of Muscle3 Types of Muscle

Skeletal

Smooth

Cardiac

Skeletal

Smooth

Cardiac

Skeletal MuscleSkeletal Muscle

Attached to bones of the skeleton.VoluntaryStriated(lines)

Attached to bones of the skeleton.VoluntaryStriated(lines)

Smooth MuscleSmooth Muscle

Inside many internal organsInvoluntaryNot striated

Inside many internal organsInvoluntaryNot striated

Cardiac MuscleCardiac Muscle

HeartInvoluntaryStriatedDoes not get

tired

HeartInvoluntaryStriatedDoes not get

tired

Muscles at WorkMuscles at Work

Skeletal muscles work in pairs.One muscle contractsThe other lengthens

Skeletal muscles work in pairs.One muscle contractsThe other lengthens

Muscle CellsMuscle Cells

SkinSkin

FunctionsFunctions

Regulates body temperature Stores water and fat The largest organ

sensory organ Prevents water loss Prevents entry of

bacteria

Regulates body temperature Stores water and fat The largest organ

sensory organ Prevents water loss Prevents entry of

bacteria

Layers of SkinLayers of Skin

Epidermis – the thin outer layer of skin that sheds

Dermis – the middle thick layer- contains sweat glands, nerves, and blood vessels

Subcutaneous – the deepest layer that contains fat and helps protect body from injury and conserve heat

Epidermis – the thin outer layer of skin that sheds

Dermis – the middle thick layer- contains sweat glands, nerves, and blood vessels

Subcutaneous – the deepest layer that contains fat and helps protect body from injury and conserve heat

Facts About SkinFacts About Skin

An adult has more than 20 square feet of skin – about the size of a blanket.

You shed about 40 pounds in a lifetime.

Every minutes 30,000 to 40,000 dead skin cells fall from your body.

An adult has more than 20 square feet of skin – about the size of a blanket.

You shed about 40 pounds in a lifetime.

Every minutes 30,000 to 40,000 dead skin cells fall from your body.

Facts About SkinFacts About Skin

In a month time your body has made a new layer of skin

There are over a million dust mites on your mattress and pillow chomping on dead skin cells that fell off you last night.

The eyelid has the thinnest skin, the palms and soles are the thickest.

In a month time your body has made a new layer of skin

There are over a million dust mites on your mattress and pillow chomping on dead skin cells that fell off you last night.

The eyelid has the thinnest skin, the palms and soles are the thickest.

Parts of the SkinParts of the Skin

Muscle, Skin, Bone CellsMuscle, Skin, Bone Cells

Bone Cell

Muscle Cell

Skin Cell

Bone Cell

Muscle Cell

Skin Cell