After today, you will be able to answer: The Human Body After today, you will be able to answer: What are we made of? How are we organized?

Study of the Human Body Called anatomy and physiology Anatomy- study of the shape of an organism and its parts Ex: What are the size and shape of our lungs? Physiology – study of the function of an organism and its parts Ex: What do our lungs do for our bodies?

Remember! What are all living organisms made of? Cells!!!!

Levels of organization We are living organisms and are also made out of cells LEVELS EXAMPLE A group of cells make a tissue cardiac tissue

Levels of organization We are living organisms and are also made out of cells LEVELS EXAMPLE A group of cells make a tissue cardiac tissue A group of tissues make an organ heart

Levels of organization We are living organisms and are also made out of cells LEVELS EXAMPLE A group of cells make a tissue cardiac tissue A group of tissues make an organ heart A group of organs make a system circulatory system

Levels of organization We are living organisms and are also made out of cells LEVELS EXAMPLE A group of cells make a tissue cardiac tissue A group of tissues make an organ heart A group of organs make a system circulatory system A group of systems make an organism human

Organ Systems There are 11 main organ systems in the human body… Which ones can you name?

Organ systems Nervous Skeletal Muscular Circulatory Digestive Respiratory Integumentary (Skin) Excretory (Waste) Endocrine (Hormones) Reproductive Immune (fights disease) All of these systems work together to help you function!!

Organ systems Nervous Skeletal Muscular Circulatory Digestive Respiratory Integumentary (Skin) Excretory (Waste) Endocrine (Hormones) Reproductive Immune (fights disease)

Nervous system Responsible for process information from the environment Senses: taste, see, touch, etc. Also to send messages from the brain to other organs Controls movement and function Ex: tells your lungs to inhale and keeps your heart beating Made of special cells- neurons

Skeletal system Gives your body shape and structure Protects internal organs Ex: rib cage and heart Attaches to muscular system – to help with movement Made of bones, ligaments and tendons

Muscular System Provides movement Attached to skeletal system Two types of muscles: Voluntary Ex: you kick your leg Involuntary Ex: your heart beating Ex: Your stomach moving food

Circulatory System Moves blood through the body Transports oxygen from lungs to other organs Made of heart, arteries, capillaries and veins Arteries- blood flows away from heart Veins- blood flows to the heart

Digestive System Breaks down food to chemicals that our body can use Starts with the mouth! Ex: chewing and digesting This provides energy for your body!