1 / 9

Fascinating Cardiovascular System Facts: Blood Vessels and More

Learn about the incredible 60,000 miles of blood vessels in the human body, the three main parts of the cardiovascular system (heart, blood, vessels), and the unique structure and functions of arteries, veins, and capillaries.

tammiea
Download Presentation

Fascinating Cardiovascular System Facts: Blood Vessels and More

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. Cardiovascular System Notes: Blood Vessels

  2. Interesting Cardiovascular System Fact The human body has 60,000 miles of blood vessels – long enough to go almost 3 times around the Earth!

  3. NOTES – THE CARDIOVASCULAR SYSTEM (A.K.A. THE CIRCULATORY SYSTEM) • 3 main parts • heart • blood • blood vessels

  4. Blood Vessels • ARTERIES • take blood away from the heart

  5. 3 layers 1. TUNICA EXTERNA: outside layer – made up of connective tissue

  6. 3 layers 2. TUNICA MEDIA: middle layer – made up of smooth muscle

  7. 3 layers 3. TUNICA INTIMA: inner layer – made up of endothelial cells (endothelium)

  8. VEINS • bring blood to the heart • same 3 layers as arteries except the muscular layer is much smaller • also contain valves

  9. Capillaries (photomicrograph of alveolar capillaries) • Function: the exchange of materials between the blood and the body’s cells • EX: oxygen, nutrients, waste • these are microscopic in size

More Related