Do Now: Draw this table in your notebook: Body ------------------------------ City ex: Brain-----------------------Mayor’s office As you watch the following clip, try to make at least 3 analogies between the human body and a city Watch this (Osmosis Jones): http://www.youtube.com/watch?v=qKq3hOgC8YE

Anatomy and Physiology Protection, Support, and Movement

Major Organ Systems of the Human Body

Human Body Systems Learning Target: By the end of the class, students will be able to describe the functions and major structures of human body systems by completing a 5 question quiz!!! 

Standard HS-LS1-2. Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.

Objectives: Understand the how the human body is organized starting from the smallest (cells) to the largest (organism) level. Explain how different organ systems work together to maintain homeostasis. Understand the importance of maintaining a stable internal environment in the human body.

Big Idea # I Physiology :The internal environment of the human body is stable because of multiple organ systems working together. The human body is made of different levels of organization starting with cells and building up all the way to organ systems. Organ systems work together through mechanisms like negative feedback loops to maintain homeostasis in the human body.

What are the 5 levels of organization? Cells-has a particular structure and make up. (epithelial cell) Tissues-groups of similar cells to perform a specialized function (Epithelial lung tissue cell). Organs-different types of tissue that function together (lung).

What are the 5 levels of organization? Organ systems( respiratory system)-are made of two or more organs. Organism (you)-Organ systems work together and interact to keep you alive.

How are tissue and organ systems different? Tissues make up organs. Organ systems are made up of many organs.

What is the function of skeletal system? The skeletal system includes bones and tissues that are important for supporting, protecting, and moving your body. Jumping/landing your bones absorb 12 times your weight.

What is the function of the muscular system? Muscles are tissues that can contract (shorten), causing movement. It takes 17 muscles in your face to smile, but it takes 43 muscles to frown.

How do the skeletal and muscular systems work together? Bones and tissues are important for supporting and moving your body. Muscles are tissues that can contract, causing movement. The skeletal and muscular systems work together by muscles contracting, causing bones to move at their joints.

What is the function of the integumentary system? The integumentary system has many tissues that protect your body (multiple layers of cells, glands, nerves). Your skin is your largest organ (avg. 8lbs ,22 feet)

How does your body protect itself (macro-level)? The integumentary system has many tissues that protect the body (skin, hair, nails, oil gland, and sweat glands). The skeletal system provides protection for our internal organs.

Muscular System Integumentary System Nervous System Skeletal System Which of the following organ systems is responsible for protection and support? Muscular System Integumentary System Nervous System Skeletal System Endocrine System

How do the muscular, skeletal, and integumentary systems maintain homeostasis? Integumentary-first line of defense against pathogens. (keeps stable internal environment) Skeletal-protects organs (maintains normal organ functions) Muscular-pushes substances through the body such as blood, food, and other fluids.

Homeostasis = Balance

Changes may be external (on the outside) or internal (on the inside), and the body must respond appropriately. A person who is in good health is in a state of homeostasis. When the body is out of balance or sick, it is not in a state of homeostasis

Summary Questions: Write question in nb Why must the skeletal and muscular systems work together to allow you to move? Why is your skin so important? How do the muscular, skeletal, and integumentary systems maintain homeostasis?