1 / 17

Blood

Blood. Overview… Blah…. What it is Structures & Functions Parts of blood Red blood cells White blood cells Plasma Platelets Lymph Blood Type and Rh Factor Blood Extras… Blood Donation Infection Blood-doping. Blood – What it is?. Specialized fluid in the body.

kaylee
Télécharger la présentation

Blood

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Blood

  2. Overview… Blah… • What it is • Structures & Functions • Parts of blood • Red blood cells • White blood cells • Plasma • Platelets • Lymph • Blood Type and Rh Factor • Blood Extras… • Blood Donation • Infection • Blood-doping

  3. Blood – What it is?... • Specialized fluid in the body. • Delivers necessary substances. • Nutrients • Oxygen • Removes waste products from cells. • Carbon dioxide • Cell waste

  4. Parts of the Blood

  5. Structures & Functions of Blood

  6. Red Blood Cells • A.k.a. Erthrocytes (“red” & “cell”) • Deliver oxygen & remove carbon dioxide and other waste. • Red because it contains hemoglobin which binds oxygen. Bluer when oxygen-poor. • Made in bone marrow in humans. • Live for 120 days • No organelles or nucleus • Single drop = millions of cells

  7. White Blood Cells

  8. White Blood Cells • A.k.a. leukocytes (“white” & “cell”) • Cells of the immune system • Defend the body against infectious disease and foreign materials. • Indicator of disease – 1% of blood in healthy adult. Greater # may mean infection. • Produced in the bone marrow. • Live a few days to a few weeks.

  9. Platelets

  10. Platelets • A.k.a. Thrombocytes • Responsible for clotting of the blood when exposed to air. • Small, colorless, irregular shape, sticky surfaces. • Life span of 8-12 days • Excessive bleeding can occur if their numbers are too low.

  11. Plasma • Responsible for transport of cells. Like the stream to fish. • Carries dissolved salts (Ca, Na, Mg, K) • Transports blood, glucose, carbon dioxide. • ~55% of blood. Straw-colored, clear liquid. Mostly (~90%) water. • Serum is plasma without clotting proteins.

  12. Blood Types & Rh Factor

  13. Blood Types & Rh Factor • A, B, AB, O refer to the presence or absence of antigens in the blood. • O is most common (neither antigen). • Blood types are inherited. • Rh refers to the Rhesus Monkey – an antigen (D) is present in some people (which is common to Rhesus) = +. • 85% are + (99% Asians are +) • 15% are -.

  14. RBC Compatibility

  15. Conditions • Anemia – a symptom in which there are reduced RBC’s. Other symptoms are pale skin, feel weak, fast heart beat. • Leukemia – cancer affecting bone marrow and immunity. • Sickle-cell – anemia resulting genetically. RBC’s are sickle shaped.

More Related