1 / 12

Do now:

Do now:. Why do we do CPR on someone that appears to be having a heart attack? Do we expect the person to be revived? 1. Ideally, the pumping will start the heart although highly unlikely.

quynh
Télécharger la présentation

Do now:

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. Do now: • Why do we do CPR on someone that appears to be having a heart attack? • Do we expect the person to be revived? • 1. Ideally, the pumping will start the heart although highly unlikely. • 2. The pumping on the chest mimics the heart pumping and fresh blood circulating to the heart, brain and other vital organs. • Unless a defib. unit arrives on the scene and the person is brought to the hospital in under an hour this person will likely not survive.

  2. CPR • CPR is crucial to maintaining life, but unless defibrillation

  3. Homework • Due Today - 1 page minimum summary of the first readingof Section 33.1 – The Circulatory System. Pages 948-953. Also, the rough draft due June 8th • Due on today also is the rough draft. • Due on Tuesday June 12th - Quiz on Sections 32.2, 33.1 – It will include a diagram on the heart & circulatory system. • Please note - Due on Tuesday June 12th - Re-read & review Section 33.1 – The Circulatory System. Pages 948-953

  4. New Material – Circulatory System • Why do we breath? • Why does the heart pump? • Each time we inhale we are taking in CO2 & O2 (mostly for the O2 ) and expelling excess CO2 . The body needs fresh O2 for the heart & brain. • The technical name for the heart is the myocardium.

  5. The Heart • Atriums – the top cavities • Ventricles: • Bottom cavities

  6. The Heart • Atriums – these are blood collection areas. The Right Atrium collects old blood, once full it dumps into the Right Ventricle. • Right Ventricle will • pump this old • blood to the lungs.

  7. The Heart • Left Atrium receives fresh blood from the lungs. Which then fills and dumps into the Left Ventricle. • The Right Ventricle will • pump blood to the rest • of the body. • This is why the Right • Ventricle is thicker than • the left since it pumps • blood to the whole body.

  8. New Material • The heart and vessels • Label these!

  9. New Material • Veins versus arteries – veins carry deoxygenated blood (lacking O2), except Pulmonary Arteries & Veins

  10. New Material • Blood Flow & circulation – Blood going to the lungs is to exchange • CO2 Gas for O2 Gas. • which will expelled • when exhaling.

  11. New Material • Blood Flow & circulation – Blood Pressure. • For example 120 / 80. • What does that mean?

  12. New Material • More to follow in Tuesday’s class after the Quiz. • Reminder: Go to the paper guidelines • http://science.hyde.wikispaces.net/Biology-Walsh • Please place the chairs on the tables and clean around your desk. • Wait to be dismissed

More Related