You need Clean paper Pencil Feb 1 2019

You need: • Clean paper / Pencil Feb. 1, 2019 Warm Up: (on your WARM UP sheet) List the pathway of the food through the digestive system. (what organs? ) I CAN: identify the parts and function of the excretory system.

Review Contact Ms. Garris t e n. c • Phone = (919)-560 -3916 ext. 16331 n s p • Written note…but bring it todme @ s before/after class!! i r r a • Email = Audrey. Garris@dpsnc. net G. y e r d u A

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

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

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

Body Organization Organism Organ System Organ Tissue Cell Review

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

Review Cells are organized into TISSUES! Ø 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

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

Review Organs are organized into ORGAN SYSTEMS! Ø 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. Review into ORGANISMS! ORGANISM (BODY) Ø 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

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

Review The Digestive System

Review The Digestive System (Flip to the back of your notes) The digestive system has 3 main functions: 1. It breaks down food into particles that the body can use. 2. It absorbs nutrients into the blood. 3. It eliminates waste from the body. Mouth Esophagus

Review The Digestive System Digestion can happen in two ways: Mouth 1. Mechanical digestion: foods Esophagus are physically broken down into smaller parts (like by teeth). 2. Chemical digestion: Chemicals called ENZYMES break foods into their smaller “building blocks” (for example, starch gets broken down into sugar).

Review Categories of NUTRIENTS 1. Water - most important because other stuff can dissolve into it. “Water soluble” 2. Minerals 3. Vitamins 4. Fat 5. Carbohydrates 6. Proteins ** You may need to write the list on your notes. **

The Digestive System (Now go to the “front” of your notes) • 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 (break down) 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 Liver Gallbladder Stomach Pancreas

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 Liver Gallbladder Stomach Pancreas Small intestine Large intestine Rectum

Mouth Esophagus Liver Gallbladder Stomach Pancreas Small intestine Large intestine Rectum

Mouth Salivary glands Liver (and the gall bladder is green!!! Large intestine Esophagus Stomach Small Intestine Appendix Rectum Anus

Paper guts • • Color Cut out Assemble Paste

Brain. Pop! • Log onto the computer. • Go to Brain. Pop (www. brainpop. com) • Log into Brain. Pop – Username: carrington 1 – Password: cougars On Brain. Pop – Find Body Systems Watch the movie clip, try the quiz. Find the specific body system called the DIGESTIVE system. Watch the movie clip, try the quiz. You may try multiple times. Choose your final quiz answers ON THE PAPER VERSION! Search Body Systems and scroll down to the games. Play “Build-A-Body: Digestive System”

The Digestive System Mouth Esophagus Liver Gallbladder Stomach Pancreas Small intestine Large intestine Rectum

Excretory System Fluid’ s

Main Function: • The system of the body that collects waste produced by cells and removes the wastes from the body. (also known as: excretion)

Wastes Eliminated: • It specifically removes Urea – chemicals that come from the break down of proteins • Excess water • Other wastes

Structures of the excretory system • Kidneys – (2) filter blood • Ureters – 2 narrow tubes that leading from the kidneys to the bladder • Urinary Bladder-fist sized pouch (muscular sac) that holds about 2 cups of urine • Urethra – exit tube

The Kidneys and their Nephrons The kidneys are made of millions of nephrons, tiny filter factories. • First, the wastes and the needed materials, like glucose and water, are filtered out of blood • Second, the needed materials are returned to the blood and wastes are eliminated.

What happens in a nephron? Not on Notes – but you can read and discuss 1. Blood flows from an artery into a nephron in the kidney. 3. The materials that were removed pass into a long, twisting tube that is surrounded by capillaries. 4. As the filtered material flows through the tube, most of the water and glucose are re-absorbed into the blood. Most of the urea stays in the tube. 2. Blood reaches a cluster of capillaries. There – urea, water, glucose, and other materials are filtered out of the blood. These materials pass into a capsule that surrounds the capillaries. 5. After the reabsorbing process is complete, the liquid that remains in the tube is called urine.

What happens in a nephron? Not on Notes – but read and discuss artery 1. Blood flows from an ______ into a kidney nephron in the ________. capillaries 2. Blood reaches a cluster of ______ water where ______, urea _____, other materials are glucose and _______ filtered out of the blood. 3. The materials that were removed pass into a long, twisting tube that is surrounded by __________. capillaries

What happens in a nephron? Not on Notes – but read and discuss 4. As the filtered material flows through the water tube, most of the ________ and the glucose _______ are re-absorbed into the urea blood. Most of the ________ stays in the tube. re-absorbing 5. After the _____________ process is complete, the liquid that remains in urine the tube is called _________.

Nephrons Not on Notes – but read and discuss Capillaries Kidney Urea, water, glucose, and other materials…

After the reabsorbing process is complete, the liquid that remains in the tube is called… URINE.

What happens in the Nephrons? Just to review… • Materials and wastes go through the tubes • Protein, glucose, most water, and some other materials return to the blood • Wastes and small amounts of water stay and are excreted

Analyzing signs of disease… • Doctors will dip a strip of paper into urine to test for the presence of glucose and protein. • The presence of Glucose = diabetes • The presence of Protein = kidneys not functioning correctly

Homeostasis with Excretion • Excretion maintains homeostasis by keeping the body’s internal environment stable and free of harmful levels of chemicals. – Kidneys – Lungs and Skin – Liver

Homeostasis • Kidneys – Regulate amount of water in your body – Hot day – you will sweat a lot, but you don’t drink a lot so you excrete small amounts of urine

Homeostasis • Lungs and Skin – Exhale carbon dioxide and water vapor – Sweat water and urea • Liver – Breaks down wastes before excreting them

Brain. Pop Click here. • They have a video about the Urinary System (which is the same as the Excretory – although Excretory is likely the better name!). • Watch the video (maybe twice). • Answer the quiz questions…as a class or as an individual (or on paper) – it’s up to the teacher.

Check the time. If you have more time, you can give the students their Body Systems chart and have them work on Digestive and Excretory. They can use the textbook, but its really just about filling in using context clues. After the Body Systems chart, you can let them identify the sequence of events in the excretory system (urinary system). The last hand-out has a picture of the urinary system and students would need to cut out the boxes showing each step. You may need to “unhide” the next slides. Please be sure you truly need it before passing it out. I can use it Monday.

4 th period only • 4 th needs to hear/see the afternoon announcements. I’ve asked Destiny B and Muntasir to help with the computer as needed. • Link to the announcements here – or use a google window to open.

Word Bank • • • Kidney Bladder Nephron Blood vessel/blood Ureters Urethra

Are there any questions?