Blood Components
Terms
undefined, object
copy deck
- Describe a lymphocyte under a microscope.
- there are two types: small are T cells and B cells and large are plasma cells; stained with Wright's stain, dark purple nucleus and pale blue cytoplasm
- RBCs are formed in the _______ .
- red bone marrow
- Describe a non-granular WBC.
- one large round nucleus and a smooth cytoplasm
- What are the female values for a hematocrit?
- 37-47% with the average being 42%
- Describe a granular WBC.
- a lobed nucleus and granular cytoplasm
- Neutrophils are also called __________ and ________.
- Segs and Polymorphonuclear Leukocytes (PMNL)
- Describe a basophil under a microscope.
- basic stain, purple lobed nucleus, pale clue cytoplasm, large, bright blue dots on the surface.
- Describe an eosinophil under a microscope.
- Acid stain, purple lobed nucleus, pale blue cytoplasm, large bright red dots on the surface
- How many RBCs are in males ?
- 5-6 x 10^6 RBC/mm
- What is hematology?
- the study of the cellular and protein components of blood
- Describe a neutrophil under a microscope
- Neutral stain with Wright's stain, purple lobed nucleus, pale blue-purple cytoplasm, light granulation
- What makes up plasma ?
- 90% water, 6-8% proteins (gamma globulins, alpha and beta proteins for body stability), and the rest is primarily glucose and electrolytes
- What is a "Shift to the Left" in relation to a neutrophil ?
- an increase in the percentage of neutrophils which indicates an early infection
- The lifespan of a RBC is ____ .
- 4 months
- Will RBC values be higher or lower in higher elevations ?
- They will be HIGHER
- What percentage of a WBC consists of eosinophils ?
- 2-5% with an average of 3%
- What are three types of blood cells ?
- Erythrocytes, Leukocytes, Thrombocytes
- What are three types of Granular WBCs ?
- Neutrophils, Eosinophils, Basophils
- What is the function of an eosinophil ?
- detoxifies allergin and fights parasitic infections
- What is the function of a neutrophil ?
- phagocytosis - "pac-man"
- When would you see in increase in eosinophils in a WBC ?
- in response to allergies and parasitic infections
- A WBC total count averages ____ .
- 5,000-10,000/mm^3
- What does whole blood consist of ?
- about 45%cells, 55% plasma
- Neutrophils number ________ of WBC
- 65-75% with an average of 65%
- What are 2 types of Non-granular WBCs ?
- Lymphocytes and Monocytes
- What is the condition called when there are increased numbers or size of RBCs
- Polycythemia
- How many RBCs are in females ?
- 4-5x10^6 RBC/mm
- What is the function of a basophil?
- to secrete histamine and heparin which are vasodialators that cause allergic reactions
- What is serum ?
- serum is a pale straw-colored liquid and is plasma with the clotting factors removed
- WBCs are formed in the _________ .
- red bone marrow
- What is the condition called when there is a reduced number or size of RBCs ?
- Anemia
- Desribe a Hematocrit.
- a packed cell volume (PCV) indicating the % of RBC
- What are the male values for a hematocrit?
- 40-54% with the average being 47%
- What is a neutrophil called when it is present in connective tissue?
- microphage
- Basophils decrease or increase when a person is exposed to heavy metals ?
- INCREASE
- What percentage of a WBC consists of basophils ?
- 0.5-1%
- What is the function of a monocyte ?
- phagocytosis - "pac-man"
- Describe a platelet.
- small purple "trash" fragments of a large megakaryocyte. They function in blood clotting; there are about 200,000-300,000/mm^3
- What percentage of a WBC consists of monocytes ?
- 3-8% with an average of 6%
- Describe a monocyte under a microscope.
- large horseshoe or "W" or twisted, mottled or vacuolated nucleus with pale clue cytoplasm
- What is the function of RBCs ?
- to transport O2 and CO2
- What WBC produces our antibodies ?
- Lymphocytes
- What percentage of a WBC consists of lymphocytes ?
- 20-25% with an average of 20%