circulatory

Question 1

circulatory system

Answer 1

Acts as a link between cells of a complex organism and its environment.

Question 2

hemoglobin

Answer 2

protein found in red blood cells that carry oxygen in body

Question 3

open v closed system

Answer 3

opened - blood moves freely through body cavities (blood no always enclosed) ex; grasshopper

closed -blood moves contained within tubes/vessels in the body

Question 4

blood vessels

Answer 4

tube structures that carries blood in our body

Question 5

3 types of blood vessels

Answer 5

1. arteries - blood vessels that carry blood away from the heart –> organs + tissues of the bod

2.veins - returns blood from body tissues to the heart

3. capillaries arterioles + venues are connected by networks of capillaries and exchanges nutrients, wastes, and oxygen between blood + body cells

Question 6

pericardium

Answer 6

membrane that protects the heart

Question 7

artria vs ventricles

Answer 7

atria - located on the top of the heart left + right thin walled

ventricles - located at the bottom left + right of the heart thick walled

Question 8

septum

Answer 8

seperates poor blood oxygen to the left and rich blood oxygen to the right

Question 9

valves

Answer 9

controls the direction of the blood

1. A-V valves - allows blood flow from atria to ventricles
2. Semilunar Valves- blood flows from ventricles to arteries that carries blood away from the heart

Question 10

pulmonary circulation

Answer 10

blood to and from the lungs

Question 11

system circulation

Answer 11

blood to different parts of the body