Over View of the Human Body

HOW IS THE BODY ARRANGED—FROM THE SMALLEST ITEM TO THE BIGGEST ITEM?

Answer1. Cell

Basic unit of life

2. TissueA group of cells working together to do the same

job

3. OrganA group of Tissues working together to do the same job

4. Organ SystemA group of organs working together to do the same job

Does the human body have different types of tissues?

Tissues• Epithelial– Covers and protects internal organs

• Nervous– Sends electrical messages to and from the brain

• Muscle– Have cells that create movements

• Connective– Joins, supports, protects, cushions, and connects

organs

We have 11 Human body Systems

Lets name all of them

1. Muscular-Main Job is movement-3 types—cardiac, smooth, skeletal-Have over 650 muscles

2. Skeleton-Main job is for support-Have a variety of shapes—long/short/rectangle/ irregular/curved-At your age have 206 bones

3. Integumentary-Main job is protection and touch-Contains skin, hair, nails, and sweat glands-You have about 2 million sweat glands in your body

4. Digestive-Job is break down food you eat into a useable form for energy-Contains mouth, stomach, intestines, etc.-Your small intestine is about 21 ft.

5. CirculatoryJob= transport material throughout the body-Major players =blood, heart, and blood vessels-on Average the human heart beats 3 BILLION times in your life.

6. RespiratoryJob- is to take Oxygen to all your cells and remove Carbon Dioxide.Organs= Mouth, Nose, Lungs, etc.-Your right lung is slightly bigger than your left

7. NervousJob- is to send electrical impulses throughout your bodyOrgans- Brain, Spinal Cord, Nerves, etc.-The right side of your brain controls the left side of your body so the left side of the brain controls the right side of your body

8. Lymphatic-Also called the Immune system-Job is to keep you healthy by killing bacteria, viruses, tumors, cancers, etc.-Organs= spleen, lymph nodes, bone marrow-Eating chicken noodle soup helps this system fight of germs.

9. EndocrineJob- is to send chemical messages throughout your body through the use of hormones.Organs= pancreas, thymus gland, adrenal gland-Behavior and characteristic of a person is largely influenced by this system.

10. UrinaryJob- get rid of liquid waste from your bodyOrgans= kidneys and bladder-Your right kidney is slightly higher than your left in your body.

11. ReproductiveJob= is produce an offspring

The End