Ch. 17-19 Cardiovascular System

Question 1

What is the normal blood volume?

Answer 1

5 liters, depending on how small or large you are

Question 2

What is blood made of?

Answer 2

-Two components: plasma and blood cells
-Plasma & Blood cells make up “whole blood”

Question 3

What is Plasma?

Answer 3

-Liquid part of the blood
-Contains proteins, electrolytes, etc.
-55% of blood volume
-Vast majority of plasma is water

Question 4

What is the Blood Cells?

Answer 4

-Red Blood Cells (RBC) or Erythrocytes
-White Blood Cells (WBC) or Leukocytes
-Platelets or Thrombocytes

Question 5

CBC

Answer 5

Complete Blood Count

Question 6

Erythrocytes

Answer 6

Red Blood Cells
4 million to 6 million per microliter in the body

Question 7

What is the primary job of Erythrocytes?

Answer 7

To carry oxygen and a little CO2 throughout the body to all the cells of the body

Question 8

Hemoglobin

Answer 8

The part of the red cells that allow for the oxygen binding transport delivery

Question 9

Why do our cells need glucose and ATP?

Answer 9

Glucose for fuel
ATP for energy

Question 10

What is aerobic metabolism?

Answer 10

To convert glucose to ATP, or fuel to energy, there needs to be enough oxygen in our system

Question 11

What is Anemia?

Answer 11

When someone has a low RBC count or a low Hemoglobin concentration they do not have much oxygen transported
They are more tired

Question 12

What is Sickle Cell Anemia?

Answer 12

A specific type of anemia where many of the RBCs are shaped abnormally
The cells are called sickle cells and they don’t carry oxygen well.
The body sees these cells as abnormal, so it tries to get rid of them, making RBC count decrease even more

Question 13

Normal RBC

Answer 13

Circulates for 120 days
The shape of a lifesaver without the hole in the middle called the biconcave disc

Question 14

Leukocytes

Answer 14

White Blood cells
5k to 10k cells per microliter

Question 15

What is the primary function of WBCs?

Answer 15

Host defense
Helps defend our body from foreign invaders
Helps protect us from cells that are bad
(Our body’s police force)

Question 16

Patient with WBC count of 17k

Answer 16

Way too high
Maybe infection
Get history of patient
Maybe inflammation of the body

Question 17

Patient with WBC count of 1k

Answer 17

Way too low
Patient has increased risk of fighting off infection, does not have enough cells to do job

Question 18

5 types of WBC

Answer 18

Neutrophils
Eosinophils
Basophils
Lymphocytes
Monocytes

Question 19

Thromobytes

Answer 19

Platelets
150k to 400k per microliter

Question 20

What is Hemostasis?

Answer 20

blood clotting

Question 21

What is the primary function of platelets?

Answer 21

Senses damage and forms blood clots
Good and beneficial to the body

Question 22

Where do all cells come from?

Answer 22

Bone marrow, the kidneys release a hormone that stimulates RBC production