Body Organization and Structure

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Presentation transcript:

Body Organization and Structure

HOMEOSTASIS If homeostasis is interrupted, cells suffer and sometimes die. The human body’s maintenance of a stable internal environment.

THE WORK OF CELLS Cells have their own positions (or jobs) in the body!

RED BLOOD CELLS

Groups of cells working together form a TISSUE There are 4 types of tissues: Epithelial Tissue Nervous Tissue Muscle Tissue Connective Tissue

EPITHELIAL TISSUE Covers and protects underlying tissue. When you look at the surface of your skin, you see epithelial tissue

NERVOUS TISSUE Sends electrical signals through the body. It is found in the brain, nerves and sense organs.

MUSCLE TISSUE Made up of cells that can contract and relax to produce movement

CONNECTIVE TISSUE Joins, supports, protects, insulates, nourishes, and cushions organs. It also keeps organs from falling apart.

TISSUE + TISSUE= ORGAN Two or more tissues working together, form an organ. One type of tissue alone cannot do all of the things that several types working together can do.

ORGAN + ORGAN = ORGAN SYSTEM Organs working together make up an organ system. The failure of any part can affect the entire system

11 MAJOR ORGAN SYSTEMS Integumentary system Muscular system Skeletal system Cardiovascular system Respiratory system Urinary system Reproductive system. Nervous system Lymphatic system Digestive system Endocrine system

Integumentary System Includes skin, hair, nails and their underlying tissues

Skeletal muscles move bones. Muscular System Skeletal muscles move bones.

Skeletal System Bones frame and protect body parts.

Cardiovascular System The heart pumps blood through blood vessels.

Respiratory System Lungs absorb oxygen and release carbon dioxide.

Removes wastes from the blood and regulates body fluids. Urinary System Removes wastes from the blood and regulates body fluids.

Reproductive System Females produces eggs, feed/shelter unborn baby- males produce sperm.

Receives and sends electrical messages. Nervous System Receives and sends electrical messages.

Lymphatic System Returns leaked fluids to blood vessels and helps flush harmful germs out.

Digestive System Breaks down food into nutrients.

Endocrine System Glands regulate body functions by sending out chemical messages.

We are the sum of our parts!

A brief overview of the body’s systems Please remember: You won’t take all this in at once Nobody does! The homework and tests will help Revision is a must – and you will never remember it all – but if you follow the guidance given on the Student Area you will pass the exam!