1 / 8

KEY CONCEPT The circulatory system transports materials throughout the body.

Learn about the circulatory system, including arteries, veins, and capillaries, and how they transport blood throughout the body. Understand the role of blood pressure and the importance of a healthy lifestyle in preventing circulatory diseases.

gmichael
Download Presentation

KEY CONCEPT The circulatory system transports materials throughout the body.

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. KEY CONCEPT The circulatory system transports materials throughout the body.

  2. Test tomorrow on Circulatory System and Blood • Today- page 935 • Answer # 1-6, 13-23, 30-32 • Use notebook paper, please

  3. endothelium smooth muscle valve connective tissue ARTERY VEIN CAPILLARIES arteriole venule Arteries, veins, and capillaries transport blood to all parts of the body. • Arteries carry blood away from the heart. • blood under great pressure • thicker, more muscular walls

  4. endothelium smooth muscle valve connective tissue ARTERY VEIN CAPILLARIES arteriole venule • blood under less pressure • thinner walls, larger diameter • valves prevent backflow • Veins carry blood back to the heart.

  5. endothelium smooth muscle valve connective tissue ARTERY VEIN CAPILLARIES arteriole venule • Capillaries move blood between veins, arteries, and cells.

  6. Blood pressure is a measure of the force of blood pushing against artery walls. • systolic pressure: left ventricle contracts • diastolic pressure: left ventricle relaxes • High blood pressure can precede a heart attack or stroke.

  7. Lifestyle plays a key role in circulatory diseases. • Some choices lead to an increased risk of circulatory diseases. • smoking • long-term stress • excessive weight • lack of exercise • diet low in fruitsand vegetables,high in saturatedfats

  8. Circulatory diseases affect mainly the heart and the arteries. • artery walls become thick and inflexible • plaque blocks blood flow in arteries

More Related