Cariovascular unit 1 Flashcards
Most abundant leukocytes in order greatest to least
- Neutrophils
- Lymphocytes
- Monocytes
- Eosinophils
- Basophils
What surrounds (and is in contact with) muscles, gland, and other body cells, and is made by fluids and solutes that leak out of capillaries?
interstitial fluid
Erythrocytes
RBCs
What intracellular blood protein transports oxygen and carbon dioxide?
Hemoglobin
Hematocrit
% by volume of RBCs in blood
male: 40-52%
female: 37-47%
Hemoglobin concentration
part of the oxygen carrying ability of blood
male: 13-18g/ml
female: 12-16g/ml
what organ releases erythropoietin?
kidney
Red blood cell function
Carry oxygen (using hemoglobin)
How long to RBCs circulate in blood
120 days
What happens when red blood cells die?
globin > amino acids
heme > iron > liver > bone marrow
Non iron part of heme (billirubin) > excreted in feces and urine
What are the plasma proteins and their functions?
- Albumins: osmotic pressure, transport lipids
- Globulins: transport ions, hormones, and lipids; immune function
- Fibrinogens: essential in clotting
Antigen
protein that is on the cell body
antibody
in plasma and attack antigens that dont match blood type
If blood agglutinates in anti a serum what antigen does it have?
A
universal donor? universal receiver?
donor: O-
receiver: AB+
What blood cells can leave capillaries and enter interstitial space?
leukocytes
functions of blood
transportation, protection, regulation
pulmonary circuit vs systemic circuit
pulmonary: lungs
systemic: head and body
Formed elements
erythrocytes, leukocytes, platelets
erythropoesis
hemocytoblast > myeloid stem cell > eryethroblast > reticulocyte > erythrocyte
what leukocytes are capable of phagocytosis?
Neutrophils, eosinophils, monocytes
Neutrophils
bacteria slayers (WBC)
Lymphocytes
immunity
Tcells: act directly on virus-infected cells or tumor cells
Bcells: product anitbodies
Natural killer cells: non specific defense
Monocytes
mature into macrophage, eat bacteria, dead cells and cellular debris
