circulatory system 1.heart 2. blood vessels 3. blood
TRANSCRIPT
![Page 1: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/1.jpg)
Circulatory System
1. Heart2. Blood vessels3. Blood
![Page 2: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/2.jpg)
• Heart pumps blood through blood vessels to lungs
• In lungs, red blood cells loaded with oxygen
• Arteries carry oxygen rich blood to body
• Arteries divide into capillaries
![Page 3: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/3.jpg)
• In capillaries, blood cells drop off oxygen and nutrients and collect waste products including carbon dioxide
• Blood travels back to the heart and lungs through veins
• Red blood cells deposit carbon dioxide in the lungs
![Page 4: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/4.jpg)
Blood is a mixture of plasma and three different types of blood cells:
1. Red blood cells (carry oxygen to body)
2. White blood cells (fight disease)
3. Platelets (stop bleeding)
![Page 5: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/5.jpg)
CLOGGED ARTERIES• Fat in blood sticks to side of arteries, limits amount of blood that can pass
through• Can cause high blood pressure, stroke or heart attack
![Page 6: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/6.jpg)
![Page 7: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/7.jpg)
HEART ATTACK
![Page 8: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/8.jpg)
HEART ATTACK
![Page 9: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/9.jpg)
LYMPHATIC SYSTEM• Produces white
blood cells that fight germs and infections
• Traps foreign particles
• White blood cells are transported through body in a pale fluid called lymph
![Page 10: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/10.jpg)
LYMPH NODES• Oval tissue• Filled with white blood
cells• In strategic locations
(neck, abdomen, groin, armpits)
• Filter and destroy foreign matter like bacteria
• When they are fighting they swell up
![Page 11: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/11.jpg)
LYMPHATIC SYSTEM
• White blood cells are created in bone marrow
• Tonsils prevent germs from entering your body through your throat
![Page 12: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/12.jpg)
COMMUNICABLE AND NONCOMMUNICABLE DISEASE
Noncommunicable disease can’t be spread directly from person to person:
• Hereditary diseases• Poor nutrition• Risky behaviors (ie:
smoking)
![Page 13: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/13.jpg)
COMMUNICABLE AND NONCOMMUNICABLE DISEASE
Communicable disease can be spread directly from person to person. Is contagious.
• Epidemic: a disease that is spreading rapidly
• Diseases from humans/animals• Ex: Cold, flu, rabies• Can be spread by coughing,
sneezing, touching, sharing drinking glasses and eating utensils
• Can be due to bacteria or viruses
![Page 14: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/14.jpg)
Bacterial diseases
Bacteria are tiny organisms that cause disease. Examples:
• Tetanus• Tuberculosis• Typhoid fever
![Page 15: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/15.jpg)
Viral diseases
Viral diseases are caused by tiny organisms called viruses.
They invade living cells and inject their DNA into the host cells.
Examples:• Common cold• Chicken pox• Rabies• Mononucleosis• Polio
![Page 16: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/16.jpg)
Bacteria and viruses invade the body, this activates the immune system
![Page 17: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/17.jpg)
• Antibodies are produced to defeat a specific bacteria or virus
• An Antigen is a specific chemical label that the antibody can attach to, it fits like a lock and key
![Page 18: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/18.jpg)
ANTIBIOTICS• Antibiotics are
drugs that kill bacteria
• Penicillin is an antibiotic
• It was discovered by Dr. Alexander Fleming in 1928
• Antibiotics do not kill viruses
![Page 19: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/19.jpg)
VACCINES
• A vaccination protects people against a disease by stimulating the body to produce antibodies
• Not all diseases have vaccines yet, such as AIDS caused by HIV
![Page 20: Circulatory System 1.Heart 2. Blood vessels 3. Blood](https://reader035.vdocument.in/reader035/viewer/2022062304/56649e4c5503460f94b4132c/html5/thumbnails/20.jpg)