Lab 9 Flashcards
Plasma made out of
90% water
Organic and inorganic substances
Percent volume of whole blood occupied by formed elements
Hematocrit
How much hermatocrit do males have
40-52%
How much hematocrit do females have
36-48%
What are platlets called
Thrombocytes
What are red blood cells called
Erythrocytes
What are white blood cells called
Leukocytes
Type of cell?
Bioncave disk shaped cells
No nucleus
Contain hemoglobin
Function is carbon dioxide and oxygen transport
Erythrocytes
Type of cell?
Types are grandulocytes and agranulocytes
Function is immune defense, detoxification, and inflammatory response
Leukocytes
Type of cell?
Cytoplasmic fragments from megakaryocytes
2-4 micrometers
Function is important in hemostasis
Platlets
Heart chamber sequence
Atrial systole
Ventricular systole
Diastole in all four chambers
Pulse formation
Left ventricular contraction creates wave of pressure in the aorta
Heart rate may not always match pulse rate
Arrhythmia
What is normal blood pressure
120/80
MAP
DBP+1/3(PP)
What components affect MAP
Heart rate
Stroke volume
Total peripheral resistance
Gravity on blood pressure equation
MAP- [0.77 x cm above]= pressure above heart
Sustained elevation of systemic arterial pressure
Hypertension
Criteria for hypertension
SBP above 140
DBP above 90
Causes of hypertension
Increased cardiac output or peripheral resistance
Response to low blood pressure
Increase CO and/ or increase resistance
Response to high blood pressure
Decrease CO and/ or decrease resistance
Parasympathetic or sympathetic increase BP?
Sympathetic
Parasympathetic or sympathetic decrease BP?
Parasympathetic
Does cold stimulus increase or decrease blood pressure
Increase
