CIRCULATORY SYSTEM PT 3 - BLOOD & BLOOD PRESSURE Flashcards
Describe the characteristics of Blood.
such as: (Fluid/Cell %, pH #, male/female BV)
- 55% fluid / 45 % cell
- pH 7.4
- MALE BV: 5-6L
- FEMALE BV: 4-5L
What is Plasma?
Fluid matrix of blood contaning nutrients, wastes, and hormones
Define the function of this plasma protein: Albumin
Transports protein
Define the function of this plasma protein: Globulins
Transport protein and immune responses
Define the function of this plasma protein: Fibrinogen
Blood clotting
Describe Erythrocytes.
(Red Blood Cell)
Oxygen carrying protein, living to 120 days.
Define Hemopoiesis/Hematopoiesis.
Forms RBCs
Define Hematocrit.
Percentage of BV occupied by RBCs
Define Anemia.
Low hematocrit
Define Polycythemia.
High hematocrit
Describe Leukocytes.
(White Blood Cell)
A phagocytosis in immune responses
Name the 3 Granular Leukocytes.
- Neutrophils/Polymorphonuclears
- Eosinophils
- Basophils
What is the function of Neutrophils/Polymorphonuclears?
Most common phagocytosis
What is the function of Eosinophils?
Allergic reactions and Parasitic infections
What is the function of Basophils?
Stress and allergic responses
Name the 2 Agranular Leukocytes.
- Lymphocytes
- Monocytes
What are the cells contained in Lymphocytes?
B Cells
T Cells
Natural Killer Cells
Define Leukocytosis.
Increase WBC count
Define Leukopenia.
Decrease WBC count
Describe the function of Platelets.
They stop bleeding and promote clotting, living to 5-9 days
Define Blood Pressure.
Generated by Ventricular Contractions - pressure from blood vessel walls
Define Systolic BP.
High arterial pressure during ventricular systole
Define Diastolic BP.
Low arterial pressure during ventricular diastole
What is Mean Arterial Pressure (MAP)?
Average blood pressure in arteries
Explain Vascular Resistance.
What decreases/increases to increase blood pressure?
Decrease lumen size
Increase blood viscosity
Increase vessel length
=
Increase in Blood Pressure
