Heart and Blood Flashcards
Blood reduces fluid lost at injury sites by which of the following? (pg. 438)
Clotting
What are special proteins that attack invading organisms called? (pg.442)
Antibodies
What is the average pH of whole blood? (pg. 36)
7.35-7.45
Which of the following is the most abundant plasma protein and the one responsible for the osmotic pressure of plasma? (pg. 424)
Albumin
Which plasma protein is responsible for antibodies and transport proteins? (pg. 424)
Globulins
Which plasma protein attacks foreign proteins and pathogens?
Immunoglobin (Ig’s)
Which plasma protein is involved in blood clotting? (pg. 424)
Fibrinogens
_____ bind(s) and transport(s) carbon dioxide and oxygen. (pg. 427)
Hemoglobin
The _____ is the percentage of whole blood volume occupied by cellular elements. (pg. 426)
Hematocrit
Which surface antigen(s) on red blood cells determines blood type? (pg. 443)
A,B,Rh
What is thrombocytopenia? (pg. 436)
Low Platelet Count
Which Chambers of the heart are associated with the pulmonary circuit?
(pg. 450)
Right Ventricle, Left Atrium
Which Connective tissue divides the thoracic cavity into two pleural cavities and encloses the heart? (pg. 450)
Mediastinum
The Muscular wall of the heart is called the? (pg. 451)
Myocardium
Which of the following is true of the foramen ovale? (pg. 454)
Closes at birth. Penetrates the intertribal septum from the fifth week of embryonic development until birth. Allows blood to flow from the right atrium to the left atrium.
The Valve between the left atrium and left ventricle is the? (pg. 452)
Mitral valve. Left Arterioventricular Valve. Bicuspid valve
The right coronary artery divides into what branches? (pg. 457)
Marginal and posterior interventricular.
What is an area of dead tissue caused by an interruption in cardiac blood flow called? (pg.
infarct
An influx of _____ rapidly depolarizes the cardiac contractile cells.
Sodium
The introduction of ______ initiates contraction during the plateau phase (pg. 462)
Calcium
The normal rate of contraction is established by _____ cells, the nodal cells that reach the threshold.
Pacemaker
______ form branching networks and are barely the diameter of a single red blood cell.
Capillaries
Which layer of a blood vessel contains smooth muscle tissue?
Tunica Media
Which of the following controls the flow of blood into the capillary?
Pre-capillary Sphincter
_____ is the formed tubule through which blood completely bypasses a capillary bed.
Arteriovenous anastomosis
______ is the resistance to flow resulting from interactions among molecules and suspended materials in liquid.
Viscosity
______ is the difference between the systolic and diastolic pressures.
Pulse Pressure
Which of the following affects tissue perfusion?
Cardiac output, Peripheral resistance, blood pressure
Which portion of the brain has the cardiac and vasomotor centers?
Medulla Oblongata
