human systems part one humans are complex organisms made up of many different types of systems, each...

Human Systems Human Systems Part OnePart One

Humans are complex organisms made up of many different types of systems, each carries out a specific life process.

Human SystemsHuman Systems

A- A- LevelsLevels ofof OrganizationOrganization::

1- CellsCells the basic unit of life. Humans have many different cells that carry out many different functions.

2- TissuesTissues:: Groups of similar cells working together to perform a task

Skin Lung Heart

3- 3- OrganOrgan:: Groups of tissues working together to perform a task.

4- 4- OrganOrgan SystemsSystems:: a group of OrgansOrgans working together to perform a task.

II- II- SkeletalSkeletal SystemSystem

A-A- Function

1-Support

2- Protects Internal Organs

3- Produces Blood Cells

B-B- Bones are Strong but Light.

1- 1- JointsJoints: Place where : Place where bones meet.bones meet.

a- ball and socketa- ball and socket

b-hingeb-hinge

c-immovablec-immovable

d-pivot d-pivot

2-2- TendonsTendons: Attach muscle to bone

3-3-LigamentsLigaments: Attach bone to bone

III- III- MuscleMuscle

A- Two Types A- Two Types

1-1- VoluntaryVoluntary you can control

a- Skeletal muscle

2- 2- InvoluntaryInvoluntary you have no control over.

a-a- Cardiac (Heart)

b- b- Smooth (Stomach, Circulatory)

B- B- SkeletalSkeletal MuscleMuscle: Works in opposing pairs

Front View (Anterior) Back View (Posterior)

IV- IV- SkinSkin: :

A- First Line of Defense:A- First Line of Defense:

1- Function=1- Function=

a- Gets rid of wastes (perspire)

b- Regulates Body Temperature

c- Protects if not cut or open

d- Water proof

A.A. POREPOREB.B. HAIRHAIRC.C. NERVE NERVE

ENDINGSENDINGSD.D. FAT CELLSFAT CELLSE.E. SWEAT SWEAT

GLANDGLANDF.F. HAIR HAIR

FOLLICLEFOLLICLEG.G.DERMISDERMISH.H. EPIDERMIS EPIDERMIS I.I. BLOOD BLOOD

VESSELSVESSELS