Chapter 5 And 6 Homework Flashcards
Leukocyte function
Destroy pathogens
WBC formation
In bone marrow (hematopoiesis)
WBC size and shape
7-20 micrometers
Granular or agranular
Vary by type
WBC life span
6-8 hour in blood stream
Days-years in tissue
WBC normal values
5k-10k per microliter
WBC removal
Macrophages, spleen
Reticuloendothelial system
RBC function
Cellular respiration
RBC formation
Bone marrow
RBC size/shape
Bioconcave
7-8 micrometers long
2 micrometers thick
RBC lifespan
120 days
RBC normal values
4.0-6.0 microliters
RBC removal
Disintegrate and removed by phagocytic cells. Spleen
Platelet function
Coagulation
Platelet formation
Megakaryocytes
Bone marrow
Platelet size and shape
Small discoid
2-4 microliters
Platelet lifespan
10 days
Platelet normal values
150-450x10^3
Platelet removal
Spleen
What contents are in an anticoagulated tube after being spun
Plasma, buffy coat, and RBC
What is in a buffy coat
WBC and platelets
What is in nonanticoagulated blood tubes
Serum, separator gel, clotted blood
What tube tops are nonanticoagulated
Red, gold, tiger
What percentage of blood is formed elements
45
What is in clotted blood
RBC
WBC
PLT
Fibrinogen
What percentage of blood is plasma or serum
55
Right atrium function
Receives deoxygenated blood
Venus
Right ventricle function
Pumps blood into pulmonary artery
Left atrium function
Receives blood from lungs
Arterial
Left ventricle function
Pumps blood into aorta
The right half of the heart carries
Deoxygenated blood
The left half of the heart carries
Oxygenated blood
Blood from the right atrium gets pumped into
The right ventricle
Blood from the left atrium gets pumped into
The left ventricle
Blood from the right ventricle gets pumped into
The lungs via the pulmonary artery
Blood from the left ventricle gets pumped into the
Aorta
Pericardium description and function
Outer layer
Consists of two layers
Epicardium as external surface; parietal pericardium as a membrane encasing the heart
Endocardium description and function
Inner layer. Thin layer of epithelial cells continuous with blood vessel lining. Lines interior chamber and valves
Myocardium description and function
Middle layer. Thick cardiac muscle. Contracts to pump blood into arteries.
List the three veins most commonly used by phlebotomists
Median cubital
Cephalic
Basilic
If a serum requires serum rather than plasma, what tubes should be collected?
Red or yellow
If a test requires heparin plasma, what color tube should be collected
Green
A CBC is in what tube color
Purple
Most anticoagulants prevent blood from clotting by binding
Calcium
Most routine blood collection in the lab involves collecting blood from
The anticubital fossa
Blood vessels that carry deoxygenated blood back to the heart are called
Veins
Blood vessels that carry oxygenated blood away from the heart are called
Arteries
K oxalate binds
Calcium
Heparin can be
Na, NH4 (ammonium), or Li
Sodium floride function
Preserve glucose
Na Citrate binds
Calcium
Difference between plasma and serum
Plasma contains fibrinogen, serum doesn’t
The upper chamber of the heart is the
Atrium
The term buffy coat refers to
The middle layer of platelets and white blood cells
