Blood: 12.2 Questions - Group 1 Flashcards
Where would one normally find erythrocytes?
In the bloodstream.
The blood is important in picking up oxygen from the lungs in ____________ circulation.
Pulmonary
Oxygen is transported to the tissue cells via the ___________________ circulation.
Systemic
What formed element of the blood is responsible for “picking up” oxygen from the lungs?
Erythrocytes
What formed element of the blood is responsible for transporting oxygen?
Erythrocytes transport oxygen to the systemic tissues.
Red blood cells lack a nucleus.
True or False.
True
The term “anucleated” means without a __________.
Nucleus
The term “biconcave” shape is used with which formed element?
RBCs
The biconcave shape due to a lack of nucleus allows the red blood cells to ___________ and travel through the tiny capillaries.
Bend (fold over)
What mineral is found in hemoglobin?
iron
How many molecules of oxygen can one hemoglobin molecule hold?
Up to four (4)
Where would one normally find immature red blood cells?
In the red bone marrow
Where are red blood cells made?
In the red bone marrow
Where is hemoglobin normally located?
Inside the erythrocytes
What is the most abundant formed element?
Erythrocytes
What are the three reasons that adult men have higher rbc count than adult females?
• Testosterone increases rbc’s; estrogen
does not.
• Females lose rbcs monthly in
menstruation.
• Fetal demands for iron during
pregnancy.
Can erythrocytes undergo mitosis or repair themselves?
No, they lack a nucleus so no DNA (genetic plans to make a new rbc or repair it).
What binds to the iron atom in hemoglobin?
Oxygen
Fully saturated hemoglobin would hold _______ molecules of oxygen.
Four (4)
Can low levels of iron cause a type of anemia?
Yes. The condition is called iron deficiency anemia
What is released when red blood cells are hemolyzed?
Hemoglobin molecules
What gives arterial blood the red color?
Hemoglobin molecules when they are loaded with oxygen. This oxidizes the iron atoms. (NOTE: rust is oxidized iron.)
What gives venous blood the bluish-purple color?
Hemoglobin molecules that have unloaded some of their oxygen.
The color of blood is due to what molecule?
Hemoglobin
