Sept. 4, 2018 You need: Clean paper / Pencil Name plate Body organization foldable Warm Up: (on your WARM UP sheet) List the levels of body organization – from smallest to largest. (Hint: CELL is first) I CAN: identify the parts and function of the digestive system.

Be the positive. It takes many “put-ups” to cancel a “put-down.”

Check your desk. Please be INTENTIONAL! Place, don’t toss/throw. Think about noise.

Polygamy Polygamy Word dissection Word parts…prefix, suffix Cutting up words Definitions of each part Polygamy Polygamy

MRS NERG-C M - Movement R – Respirations S – Sensitivity (responds to stimulus) N – Nutrition / nutrients E - Excretion R – Reproduces G - Growth C - Cells

Introduction to the Human Body: ? ? How are our bodies organized? Introduction to the Human Body: ?

Label your foldable… ORGANISM (body) ORGAN SYSTEMS ORGANS TISSUES CELLS

How are cells organized? ORGANISM (BODY) Complex living things are organized into 5 levels. Cells carry on the processes that keep us alive. Examples: Red Blood Cells Muscle Cells Skin Cells ORGAN SYSTEM ORGANS TISSUES CELLS

What are all living things made of? All living things are made of CELLS! (You have billions of cells inside you.) Cells have specialized jobs, and are organized in your body. For example, these red blood cells carry oxygen around your body in your blood.

Cells are organized into TISSUES! A TISSUE is a group of similar cells that all do the same thing (they have the same function). Examples: Muscle Tissue (Muscles) Nervous Tissue (Nerves) Connective Tissue (Bones) TISSUES CELLS

Tissues are organized into ORGANS! An ORGAN is a structure made of different tissues. The organ does a specific, complex job. Examples: Heart Stomach Brain Lungs ORGANS TISSUES CELLS

Organs are organized into ORGAN SYSTEMS! An ORGAN SYSTEM is a group of organs that work together to perform a major job. Examples: Circulatory System Digestive System Skeletal System ORGAN SYSTEM ORGANS TISSUES CELLS

Organ Systems are organized into ORGANISMS! ORGANISM (BODY) An ORGANISM is a living thing, with organ systems that work together to keep a body alive. Examples: Human Beings ORGAN SYSTEM ORGANS TISSUES CELLS

What is HOMEOSTASIS? HOMEOSTASIS is how your body maintains an INTERNAL BALANCE. It keeps your body STABLE in spite of changes OUTSIDE YOUR BODY. Example: Your body keeps CONSTANT TEMPERATURE no matter what the outside temperature.

How does your body maintain HOMEOSTASIS? When you are TOO HOT, your body SWEATS to keep you cool. When you are TOO COLD, your body SHIVERS to keep you warm.

The Digestive System

The Digestive System When a person begins to eat food, the body's digestive system begins to work. The digestive system is the system of the body that is responsible for breaking down the food a person eats. The process of food being broken down is called digestion.

Digestion allows the body to receive the nutrients and the energy from the food that is eaten. During digestion, all of the food a person eats is eventually turned into the building blocks and fuel a person needs. The system actually begins to work when a person sees or smells the food. Saliva, or spit, begins to form in the mouth. When the food is eaten, the saliva will begin to break down the chemicals in the food making it mushy and easy to swallow.

With the help of a person's tongue the mushy food then moves to the back of the mouth into the opening of the esophagus. The esophagus is about a 10-inch pipe that moves the food from the back of the throat to the stomach. There is also a small flap blocking the windpipe to make sure the food goes down the correct tube. The special flap is called the epiglottis. If a person begins to cough or choke, it is sometimes caused by food or drink going down the windpipe instead of the esophagus. There are muscles in the esophagus that help push the food into the stomach.

The Digestive System The digestive system has 3 main functions: It breaks down food into particles that the body can use. It absorbs nutrients into the blood. It eliminates waste from the body. Mouth Esophagus

The Digestive System Digestion can happen in two ways: Mechanical digestion: foods are physically broken down into smaller parts (like by teeth). Chemical digestion: Chemicals called ENZYMES break foods into their smaller “building blocks” (for example, starch gets broken down into sugar). Mouth Esophagus

The Digestive System MOUTH: your teeth break down food into smaller pieces (mechanical digestion). Saliva has enzymes that start chemical digestion. ESOPHAGUS: smooth muscles push food down to the stomach (peristalsis). Mouth Esophagus

The Digestive System Most digestion happens in the Stomach: Mechanical digestion occurs when the stomach muscles churn the food. Chemical digestion happens when stomach acid breaks down food. Mouth Esophagus Stomach

The Digestive System Liver, gallbladder and pancreas: produces & stores chemicals (enzymes) that help digest food in the small intestine. Mouth Esophagus Stomach Liver Pancreas Gallbladder

The Digestive System Small intestine: completes chemical digestion and absorbs nutrients for the body. The nutrients pass through the villi into blood vessels. Large intestine: water is reabsorbed by the body. Rectum: compresses waste into a solid form. Mouth Esophagus Stomach Liver Pancreas Gallbladder Small intestine Large intestine Rectum

Homework Name plate/tent Ask folks to sign up for REMIND and do the parent survey. Get rules page signed!

Are there any questions?