Download Review sheet answers quiz 2

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Section 2-1 review
1. What are the two parts of the cardiovascular system?
Heart and blood vessels
2. Name the 2 types of place(s) that valves are located.
1. between atria and ventricles
2. between ventricles and arteries out of the heart
3. Describe the 3 steps that blood takes as it passes through the heart.
1. Blood enters top of heart (atria)
2. Blood goes down into the bottom of the heart (ventricles)
3. Blood leaves the heart (through arteries)
4. Which side of the heart has blood with a lot of oxygen AND WHY?
The left side of the heart has blood with a lot of oxygen because it is coming from the lungs and just
picked it up.
5. Which type of blood vessel (arteries or veins) usually carries blood without oxygen AND WHY?
Veins usually have blood with only a little oxygen because they carry blood back from the body and the
organs just used the oxygen. The blood is now going back “into” the heart before going to the lungs to
get more oxygen.
6. Compare the 3 types of blood vessels using the following chart:
Arteries
Veins
Capillaries
Type of Walls
Thick
Thin
Very thin
Function
Carries blood away from
the heart
Carries blood back into the
heart
Exchanges oxygen,
nutrients, waste with cells
7. What is pulmonary circulation? Blood flow between heart and lungs
8. What is systemic circulation? Blood flow between heart and rest of the body
9. Name the parts of the respiratory system.
Nose, pharynx, larynx, trachea, bronchi, lungs, alveoli
10. Describe how the respiratory and circulatory systems work together to exchange oxygen and carbon
dioxide.
1. Oxygen enters the lungs when you inhale.
2. Oxygen is transferred from the alveoli in the lungs to the capillaries around them.
3. Oxygen can now travel through the blood to all of the organs
4. Capillaries next to the body cells allow the oxygen to get to the cells
11. Use the following diagram to fill out the chart below.
8
6
9
1
2
7
3
4
5
Name of heart chamber or
where the blood is going to or
from?
Artery or Vein?
1.
Right atrium
2.
Right ventricle
3.
Left atrium
4.
Left ventricle
5.
From lower body
Vein
6.
To the lungs
Artery
7.
From the lungs
vein
8.
To the body
artery
9.
Valve
12. What is the difference between mechanical and chemical digestion? Name 2 organs that have both
types.
Mechanical digestion is the physical breaking of food into smaller pieces (mouth, stomach)
Chemical digestion is the breakdown of food pieces into nutrients using chemicals like acid or enzymes
(mouth, stomach, beginning of the small intestine)
13. List the organs that are part of the digestive tract in order from mouth to anus.
Mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum anus
14. What kind of chemical aids digestion in the stomach?
acid
15. What is the function of the large intestine?
Removes water to make solid waste
16. What do villi do and why are they important?
Villi in the small intestine absorb nutrients from the digested food so the capillaries and take
them to the organs or cells that need them.
17. What organ absorbs the nutrients from the food? Small intestine
18. Describe how the digestive and circulatory systems work together to deliver nutrients to the body’s
organs.
1.
2.
3.
4.
Digested food enters the small intestine after it leaves the stomach.
Nutrients are absorbed by the villi in the small intestine and transferred to the capillaries in them.
Nutrients can now travel through the blood to all of the organs
Capillaries next to the body cells allow the nutrients to get to the cells.
***Be prepared to answer lab design questions including independent, dependent,
controlled variables, and control group.