Sponge: Set up Cornell Notes on pg. 79 Topic: 14 Sponge: Set up Cornell Notes on pg. 79 Topic: 14.1 Blood Essential Questions: When dealing with blood, what is one of the easiest ways to protect yourself? 14.1 Blood 2.1 Atoms, Ions, and Molecules When dealing with blood, what is one of the easiest ways to protect yourself? Turn in Lab 35 to printer

“Twitter” Talk Answers P. 78 Blood- Bubble Map “Twitter” Talk Answers

On the top of pg. 78 Please make a bubble map with everything you know about blood: What’s in blood Diseases/Disorders Where blood is found Functions Blood

On the top of pg. 78 Please make a bubble map with everything you know about blood: Transports gases Hemoglobin RBC Circulatory System Blood Platelets Heart Helps maintain body heat Veins WBC Arteries Capillaries

Blood Blood is a type of connective tissue whose cells are suspended in a liquid extracellular matrix Blood is slightly heavier and 3-4 times more viscous (vis-cus) or having a thick, sticky consistency, than water

Blood Blood has many vital functions: Transports nutrients, oxygen, wastes, and hormones Helps maintain the stability of the interstitial fluid Distributes heat Link the bodies internal and external environments Provides HOMEOSTASIS

Blood Cells Blood Cells: Are formed mostly in red bone marrow Three types: Red blood cells White blood cells Platelets (cell fragments)

The Components of Blood and Their Importance (52s) http://www.youtube.com/watch?v=R-sKZWqsUpw

Blood Volume Blood volume varies with: Body size Changes in fluid and electrolyte concentration Amount of adipose (Fat) tissue Makes up about 8% of body weight Average size adult has about 5 liters

Blood Composition If a blood is prevented from clotting, the cells separate from the liquid portion of the blood and settle at the bottom A Centrifuge quickly packs the cells into the lower part of the centrifuge tube The percentage of cells and liquid in the blood sample can then be calculated and used for diagnostic purposes.

Blood Composition A blood sample is usually about: 45% RBC --This % is called the hematocrit or HCT > 1% WBCs/ platelets 55% Plasma

Ch. 14 Blood Introduction Intro to blood readings: Read Ch. 14 Intro-“Universal Precautions” Highlight Answer questions CDC’s “Perspectives in Disease Prevention and Health Promotion [update]”

What are “universal precautions”? Specific measure that health-care workers should take to prevent transmission of bloodborne infectious agents in the workplace 2.What are some of the CDC’s recommendations to prevent infections? Gloves/goggles/masks/fumehoods/sharps containers/ hand washing before and after procedures 3. What happens to a person afflicted with Marburg virus? Headache/fever/vomiting/ bleeding from all openings, internally, and under the skin 4. What is thought to have caused the spread of the Marburg virus? Contaminated medical equipment (re-using of needles) 5. Why is the Marburg virus so contagious? Vomit/sweat/ saliva/ huge volumes of blood 6. Predict what may have happened if “universal precautions” were taken in regards to the Marburg outbreak. Although highly contagious, probably wouldn’t have spread so rapidly

Make sure to record your answers on the bottom ½ of p. 78 Twitter Talk Directions: You MUST keep your answer to 80 characters or less. Work as a table. Use your cell phones to create, screenshot, and submit your “Tweet” to Google Classroom. Make sure to include all table members’ names in comment section. Ex: How can you protect yourself from bloodborne pathogens Make sure to record your answers on the bottom ½ of p. 78

Twitter Talk Prompts: 1. What are blood borne pathogens? Occupational Safety & Health Administration (OSHA): 1. What are blood borne pathogens? 2. How might one be exposed to a blood borne pathogen? 3. What can be done to control exposure to blood borne pathogens? 4. If you are potentially exposed to any hazardous materials what should you do?

Mrs. McCobb’s [past] Favorite Answers: Bldbrn pathogns r microrgnisms in blood th@ cause dizees in humans #Bldbrnpathogns #HIV #HCV How mi8 1 b xposed 2 blodborn pathogens? Needlesticks & othr sharps injuries may expose If potentially xposed 2 any hazmat material #cleanriteaway

Angola Marburg Outbreak 8m30s http://www.youtube.com/watch?v=ArvRd6VejRI