Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
|
What is hemopoiesis?
|
Process by which mature blood cells develop from precursor cells
|
|
|
Where does hemopoiesis occur in adults?
|
Occurs in vascular sinuses of bone marrow of certain bones.
|
|
|
Which sites are especially known for homopoiesis?
|
Flat bones of skull, riubs, sternum, vertebrae, pelvis and long bones
|
|
|
How many RBC's are produced per day?
|
2.5 billion
|
|
|
Where does hemopoiesis occur in a fetus in the first trimester?
|
Blood islands in wall of yolk sac during first trimester
|
|
|
Where does hemopoiesis occur in a fetus in the second trimester?
|
In the liver and lymphatic tissue
|
|
|
Where does hemopoiesis occur in a fetus in the last month of pregnancy?
|
Bone marrow
|
|
|
In which places and at what times does hemopoiesis occur in a fetus
|
Wall of yolk sac (1st Tri); Liver and Lymphatic tissue (2nd Tri); and Bone Marrow (last month)
|
|
|
At the time of brith, where does hemopoiesis occur?
|
Is restricted primarily to marrow cavities
|
|
|
What happens to the number of active hemopoietic sites with age?
|
Active sites decrease with age
|
|
|
What are the two types of bone marrow?
|
Red marrow and yellow (fatty) marrow.
|
|
|
What does red marrow consist of?
|
Large numbers of mature RBC's
|
|
|
What is hemopoiesis?
|
Process by which mature blood cells develop from precursor cells
|
|
|
Where does hemopoiesis occur in adults?
|
Occurs in vascular sinuses of bone marrow of certain bones.
|
|
|
Which sites are especially known for homopoiesis?
|
Flat bones of skull, riubs, sternum, vertebrae, pelvis and long bones
|
|
|
How many RBC's are produced per day?
|
2.5 billion
|
|
|
Where does hemopoiesis occur in a fetus in the first trimester?
|
Blood islands in wall of yolk sac during first trimester
|
|
|
Where does hemopoiesis occur in a fetus in the second trimester?
|
In the liver and lymphatic tissue
|
|
|
Where does hemopoiesis occur in a fetus in the last month of pregnancy?
|
Bone marrow
|
|
|
In which places and at what times does hemopoiesis occur in a fetus
|
Wall of yolk sac (1st Tri); Liver and Lymphatic tissue (2nd Tri); and Bone Marrow (last month)
|
|
|
At the time of brith, where does hemopoiesis occur?
|
Is restricted primarily to marrow cavities
|
|
|
What happens to the number of active hemopoietic sites with age?
|
Active sites decrease with age
|
|
|
What are the two types of bone marrow?
|
Red marrow and yellow (fatty) marrow.
|
|
|
What does red marrow consist of?
|
Large numbers of mature RBC's
|
