Blood Components
What type of tissue is blood?
Connective Tissue
What is the most common blood type? (Be specific)
O+
Which component of the heart prevents mixing of oxygenated and deoxygenated blood?
septum
Which side of the heart pumps deoxygenated blood?
right
What does an EKG measure?
Electrical activity of the heart
What are the 2 main components and percentages of plasma?
90% water
10% solutes
What type of antigens can be found on the surface of RBC's when someone has blood type O-?
None
Which chamber has the thickest wall of muscle and why?
Left ventricle - must push blood out to all of the body cells
What is the difference between the systemic and pulmonary circuits?
Systemic - larger loop, pumps blood from heart to body tissues and back
Pulmonary - smaller loop, pumps blood from heart to lungs and back
Which component of the conduction pathway sets the heart rate?
SA node
In a centrifuged blood sample, the buffy coat situated between the formed elements and the plasma contains ________.
Leukocytes (WBCs) & thrombocytes (platelets)
If an Rh negative mother becomes pregnant, when can hemolytic disease of the newborn possibly occur in the child? Give 2 responses
Dad is Rh+
Baby is Rh+
Which chamber of the heart receives deoxygenated blood from the body through the superior vena cava?
right atrium
What is unique about the pulmonary arteries?
Which component causes a delay in the electrical conduction to allow for full emptying of the atria?
AV node
Vasoconstriction - vascular spasms
Platelet plug formation
Coagulation (clotting factors)
If a patient is B+, what are all the possible donor blood types?
B+, B-, O+, O-
Cells require oxygen for which essential biological process? & what is produced?
Cellular Respiration (ATP is produced)
What is the difference between the systolic and diastolic pressure?
Systolic - highest pressure point when the ventricles contract and push blood out of heart
Diastolic - lowest pressure point when the heart is refilling with blood
What do the Purkinje fibers do in the conduction pathway?
Cause ventricles to contract
Give 3 characteristics of erythrocytes (RBCs)
Anucleate (no nucleus), not true cells
Last 4 months (120 days)
Determines blood type
Carry Nutrients, Gas, Wastes, Hormones, Water
45% of blood volume
When typing a patient's blood, agglutination occurred with anti-A and anti-Rh serums. What is this patient's blood type?
A+
Where are the bicuspid and tricuspid valves located?
Bicuspid - Located between the left atrium and left ventricle
Tricuspid - Located between the right atrium and right ventricle
What are the three major types of blood vessels? Describe the role of each type of blood vessel in circulation. What type of blood (oxygenated or deoxygenated) is typically found within each type of blood vessel (in the systemic circuit only)?
Arteries - carry oxygenated blood away from heart
Veins - carry deoxygenated blood to the heart
Capillaries - where arteries and veins meet (oxygen rich & oxygen poor)
What order does an impulse travel through the conduction system of the heart? Include all 5 structures of the conduction system.
SA node → AV node → AV bundle → bundle branches → Purkinje fibers