Lesson 8, Chapter 1 Flashcards
1
Q
Cardiovascular System
A
The organ system made up of your heart, blood vessels, and blood
2
Q
Arteries
A
Blood vessels which carry blood away from heart.
3
Q
Veins
A
Blood vessels that carry blood towards your heart
4
Q
Capillaries
A
Microscopic blood vessels which allow gases and other substances to travel into and out of your bloodstream
5
Q
Ions
A
Electrically charged particles
6
Q
Leukocytes
A
White blood cells
7
Q
Platelets
A
Extremely small cells which form blood clots
8
Q
Oxygen free radicals
A
Single oxygen atoms, or unstable molecules which contain atoms of oxygen, that have unpaired electrons