BIOLOGY EXAM CIRCULATORY
SYSTEM Q&A
The mitral valve is also called the ___________ valve. - ANSWER-bicuspid
blood
blood vessels
heart - ANSWER-What are the 3 parts of the circulatory system?
1. capillaries - smallest blood vessel and are found by every cell in your body. - have
single celled thickness of their walls and every nutrients and waste pass through
them - Most of the time when you cut yourself you cut a capillary.
2. arteries - carry blood away from the heart
- elastic and strong and thick because have to with stand pressure from when the
heart contracts - aorta is the largest one
3. veins - carry blood to the heart aren't as thick or elastic as arteries because don't
have to withstand as much pressure but skeletal muscles help blood move in the
veins - Veins contain valves which stop blood from flowing backwards - vena cava
largest one - ANSWER-Identify and compare the functions of the three types of
blood vessels of the circulatory system.
Blood Pressure is the amount of pressure on the blood. The first number is the
systolic number which is based on when the ventricle contracts. The second number
is the diastolic which is when the ventricles relax. Ex) 120/80 120=systolic 80 =
diastolic - ANSWER-What is the blood pressure? Explain what each number
represents and use the correct terms.
1. RBC - erythrocytes -1)have no nucleus so can be
transfused
2) have blood type and RH factor
3) Allow oxygen to move through the
blood bc has hemoglobin
4) Live 120 days and then replaced
5) most numerous which is why blood
is red
2. WBC - leukocytes - 10,000 for cm2 and if more bacterial infection - less viral - has
a nucleus bc has to detect viruses and infections such as lupus, leukemia, and
arthritis
3. Platelets - 1) help the blood to clot
2) aren't complete cells bc break off Red Bone
Marrow
3) live for 10-14 days
4) the ones most effected by chemotherapy - ANSWER-Name and list the main
functions of the 3 types of blood cells.
false, platelets - ANSWER-Erythrocytes release chemicals that are needed in blood
clotting.
SYSTEM Q&A
The mitral valve is also called the ___________ valve. - ANSWER-bicuspid
blood
blood vessels
heart - ANSWER-What are the 3 parts of the circulatory system?
1. capillaries - smallest blood vessel and are found by every cell in your body. - have
single celled thickness of their walls and every nutrients and waste pass through
them - Most of the time when you cut yourself you cut a capillary.
2. arteries - carry blood away from the heart
- elastic and strong and thick because have to with stand pressure from when the
heart contracts - aorta is the largest one
3. veins - carry blood to the heart aren't as thick or elastic as arteries because don't
have to withstand as much pressure but skeletal muscles help blood move in the
veins - Veins contain valves which stop blood from flowing backwards - vena cava
largest one - ANSWER-Identify and compare the functions of the three types of
blood vessels of the circulatory system.
Blood Pressure is the amount of pressure on the blood. The first number is the
systolic number which is based on when the ventricle contracts. The second number
is the diastolic which is when the ventricles relax. Ex) 120/80 120=systolic 80 =
diastolic - ANSWER-What is the blood pressure? Explain what each number
represents and use the correct terms.
1. RBC - erythrocytes -1)have no nucleus so can be
transfused
2) have blood type and RH factor
3) Allow oxygen to move through the
blood bc has hemoglobin
4) Live 120 days and then replaced
5) most numerous which is why blood
is red
2. WBC - leukocytes - 10,000 for cm2 and if more bacterial infection - less viral - has
a nucleus bc has to detect viruses and infections such as lupus, leukemia, and
arthritis
3. Platelets - 1) help the blood to clot
2) aren't complete cells bc break off Red Bone
Marrow
3) live for 10-14 days
4) the ones most effected by chemotherapy - ANSWER-Name and list the main
functions of the 3 types of blood cells.
false, platelets - ANSWER-Erythrocytes release chemicals that are needed in blood
clotting.
