Monday - more circulatory!

Homework: Case Study and NYT article (on slideshare at the bottom - you do not need to answer the questions yet.)


Today we focused on the parts of the blood and their structure/function.

Plasma - Liquid portion of the blood (made up of water). Carries O2, CO2, nutrients (one such nutrient is glucose), hormones (chemical messengers), waste, viruses. Function: flow through out the body bringing needed components to all parts of the body. Transport

Red Blood Cells. - No nuclei, round and smooth. Dipped in the middle. Function - transport O2 which sits on the cell. Dip increases surface area. O2 is attracted to Iron in RBCs

White Blood Cells - round when not working, changes shape to 'engulf' and 'kill' off things like bacteria/viruses. Function - fight infection.

Platelets - Parts of cells used for clotting.

Below is a video that discusses the parts of blood. Remember to be able to tell me where things are coming from or going to when diffusing into/out of the blood stream.

Homework