life science 1.1 : body organization
TRANSCRIPT
Life Science
Human Body Systems and Health
1. Body Organization and Structure2. Circulation and Respiration3. The Digestive and Urinary Systems4. Communication and Control5. Body Defenses and Diseases6. Staying Healthy
Table of Contents
Life Science 1.1
Body Organization and Structure
1. Describe how tissues, organs, and organ systems are related.
2. List 11 major organ systems.3. Identify how organ systems work together to maintain
homeostasis.
Bellringer:Match the body system in the first column with the
correct function in the second column:
1. respiratory system a. regulates body functions2. muscular system b. breaks down food3. digestive system c. pumps blood4. circulatory system d. absorbs oxygen5. endocrine system e. moves bones
Objectives:
The many kinds of cells in your body help your internal environment stay stable.
Homeostasis The maintenance of a constant internal state
in a changing environment.Cells Form Tissues
A group of similar cells working together forms a tissue.
Your body has four main kinds of tissue.
Cells, Tissues, and Organs
Tissues Form Organs Two or more tissues working together to carry
out a specialized function form an organ.
Organs Form Systems Organs that work together make up an organ system.
Organ systems work together to maintain homeostasis.Your body has 11 major organ systems.
Working Together
Integumentary System
Your skin, hair, and nails protect the tissue that lies beneath.
Muscular System
Works with skeletal system to help you mover.
Skeletal System
Your bones provide a frame to support and protect your body parts.
Cardiovascular System
Your heart pumps blood through all of your blood vessels.
Respiratory System
Your lungs absorb oxygen and release carbon dioxide.
Urinary System
Removes wastes from the blood and regulates your body’s fluids.
Male Reproductiv
e SystemProduces and delivers sperm.
Female Reproductiv
e System
Produces eggs and nourishes and protects the fetus.
Nervous SystemReceives and
sends electrical messages throughout body.
Digestive SystemBreaks down
the food you eat into nutrients that your body can absorb.
Lymphatic SystemReturns leaked
fluids to blood vessels and helps get rid of bacteria and viruses.
Endocrine SystemSend out
chemical messages.