1. Label the left and right sides of the heart. How did you figure out these labels? 2. The heart has 4 chambers (or large spaces). Label those 4 chambers, as well as their dividing walls in the image above. 3. Which chambers are larger the atria or the ventricles? 4. Blood comes into the atria. a. Where is blood coming from when it enters the nght atrium? b. Where is blood coming from when it enters the left atrium? 5. Biood leaves through the ventricles. a. Where is blood going when it leaves the right ventricle? b. Where is blood going when it leaves the left ventricle? 6. Which ventricle has a thicker myocardium? Why? (See another image of the ventricles halnwy 1. Label the left and right sides of the heart. (Yes, I know you just did this in the previous activity, but please do it again to make sure you orient yourself correctly.) 2. The heart has 4 valves: two on the left side and two on the right side. Label the 3 visible valves on the image above, and list all 4 valves here 3. What do the terms tricuspid and bicuspid' refer to? How did those valves get their names? a. These valves can also be called the "atrioventricular valves. Why is this term appropriate? b. Look closely at the tricuspid and bicuspid valves in the above image. There are string-ike structures attached in the ventricles to support the valves. What are the "strings" called? (You can also see them in the awesome picture from National Geographic below.) 4. The other two valves are "semilunar" valves. Why is this term used to describe these valves?.

1. 1. Label the left and right sides of the heart. How did you figure out these labels? 2. The heart
has 4 chambers (or large spaces). Label those 4 chambers, as well as their dividing walls in the
image above. 3. Which chambers are larger the atria or the ventricles? 4. Blood comes into the
atria. a. Where is blood coming from when it enters the nght atrium? b. Where is blood coming
from when it enters the left atrium? 5. Biood leaves through the ventricles. a. Where is blood
going when it leaves the right ventricle? b. Where is blood going when it leaves the left
ventricle? 6. Which ventricle has a thicker myocardium? Why? (See another image of the
ventricles halnwy 1. Label the left and right sides of the heart. (Yes, I know you just did this in
the previous activity, but please do it again to make sure you orient yourself correctly.) 2. The
heart has 4 valves: two on the left side and two on the right side. Label the 3 visible valves on the
image above, and list all 4 valves here 3. What do the terms tricuspid and bicuspid' refer to? How
did those valves get their names? a. These valves can also be called the "atrioventricular valves.
Why is this term appropriate? b. Look closely at the tricuspid and bicuspid valves in the above
image. There are string-ike structures attached in the ventricles to support the valves. What are
the "strings" called? (You can also see them in the awesome picture from National Geographic
below.) 4. The other two valves are "semilunar" valves. Why is this term used to describe these
valves?