Hematology Flashcards
what is blood?
blood is a specialized body fluid
what are the four main components of blood?
- plasma
- RBCs
- WBCs
- platelets
what is blood responsible for?
- transporting oxygen and nutrients to lungs and tissues
- forming blood clots to prevent excess blood loss
- carrying cells and antibodies to fight infection
- bring waste products to the kidneys and liver, filtering and cleaning the blood
- regulate body temp
what are the two types of stem cells?
myeloid and lymphoid
what are the 3 types of myeloid stem cells?
- erythrocytes
- leukocytes
- platelets
what are the two types of lymphoid cells?
- T lymphocytes
2. B Lymphocytes
what are erythrocytes also known as?
red blood cells
what do erythrocytes do?
carrying oxygen to tissues and removing carbon dioxide from tissues.
what are leukocytes also known as?
White blood cells
what do leukocytes do?
fight infection
how many types of WBCs are there?
5
what do platelets do?
stop bleeding. they form blood clots
what are platelets also known as?
thrombocytes
T/F
platelets have no nucleus.
true
what are platelets derived from?
fragments of cytoplasm which are derived from megakaryocytic of the bone marrow, then enter the circulation
What are B lymphocytes used for?
Creating antibodies
where are B lymphocytes produced?
bone marrow
this is also where they mature
What are T lymphocytes used for?
controlling immune response
where are the precursors of T cells produced?
bone marrow
where do T cells mature?
T cells leave the bone marrow and mature in the thymus
what do T lymphocytes do?
direct immune response, and evaluate immune function
what are the 5 types of WBC’s?
- neutrophils
- eosinophils
- basophils
- monocytes
- lymphocytes
what do neutrophils do?
primary pathogen fighting cells
what do eosinophils do?
help control allergic response, and fight parasites