Red Blood cells
What does the word “erythrocyte” mean?
“Erythro” = red
“Cyte” = cell
So, erythrocyte = red cell.
What does the word “leukocyte” mean?
“Leuko” = white
“Cyte” = cell
So, leukocyte = white cell.
What is plasma, and what percentage of blood does it make up?
Plasma is the liquid part of blood that carries blood cells and dissolved substances. It makes up about 55% of total blood volume.
What does the word “thrombocyte” mean?
“Thrombo” = clot
“Cyte” = cell
So, thrombocyte = clot cell
What do red blood cells transport through the body?
What is oxygen and carbon dioxide.
What is the primary function of erythrocytes in the human body?
Oxygen transport
What are two types of white blood cells?
-Phagocytes (Phagpcytosis)
-Lymphocytes (Antibodies)
What substances are transported by plasma in the blood?
Plasma transports nutrients, hormones, proteins, waste products, antibodies, and dissolved gases throughout the body.
what role do platelets have in our blood system?
they help to close the wound
they assist in clotting by gathering at the site of the injury
What percent of each component is in whole blood?
What is:
55% plasma
45% white and red blood cells
What is a red blood cell missing, that makes them more flexible than other cells?
A red blood cell is missing a nucleus, which makes it more (space) and flexible than most other cells.
What is the function of the white blood cells.
What is fight off infections and diseases.
Plasma is 90% what chemical?
Water?
The name of the disease (or explain) where clotting factors are absent.
Hemophilia (Hemophilia is a genetic disorder in which the blood does not clot properly due to a lack of clotting factors).
What percent of your total body weight is blood?
What is 7-8%
The life span of a red blood cell is...
120 days?
Where are white blood cells produced?
What is bone marrow?
What would happen if the blood did not contain plasma?
Without plasma, blood cells could not be transported, nutrients and wastes would not move through the body, and normal circulation would not be possible.
Where are platelets produced in the body?
Platelets are produced in the bone marrow
How many pints of blood does the average man have?
Men: about 10–12 pints (≈ 5–6 liters)
What is meant by an adaptation in red blood cells?
RBC Adaptations
Biconcave shape
Increases surface area for gas exchange
No nucleus
Creates more space for hemoglobin
Makes the cell more flexible
Packed with hemoglobin
Hemoglobin binds oxygen and carries it to body tissues
Helps transport carbon dioxide back to the lungs
List some diseases related to RBC and WBC
1. Anemia
Low number of RBCs or low hemoglobin
Symptoms: fatigue, weakness, pale skin
2. Sickle Cell Disease
Genetic disorder causing abnormally shaped (sickle-shaped) RBCs
Leads to pain, anemia, infections, and poor oxygen delivery
WBC disorders affect immunity and infection defense.
1. Leukemia
Cancer of WBCs
Causes abnormal WBC production
Symptoms: frequent infections, fatigue, bruising
2. Leukopenia
Low WBC count
Increases risk of infections
Plasma is what color?
How is plasma different from red blood cells in structure and function?
Yellow.
Plasma is a liquid, while red blood cells are solid cells. Plasma transports substances, whereas red blood cells mainly carry oxygen and carbon dioxide.
What might happen if a person has a low platelet count?
A low platelet count (thrombocytopenia) can lead to excessive bleeding, easy bruising, and slow wound healing.
How many pints of blood does the average woman have?
Women: about 8–10 pints (≈ 4–5 liters)