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Grade 11 Biology -- Circulatory System Cheat Sheet (DRAFT) by

Important information about the circulatory system. Includes the composition of blood, parts of the heart, blood vessels, etc.

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Why do we need the circul­atory system?

- Delivers oxygen, food and other nutrients to all parts of the body while also elimin­ating waste products
- Transports chemical messengers (hormones) throughout the body
- Maintains a constant body temper­ature
- Blood pressure control

What is the compos­ition of blood?

Plasma
Erythr­ocytes
Leukocytes
Platelets
- Liquid portion of blood