Quiz 5 (Chapters 11, 12, & 13) Flashcards
Blood reduces fluid loss at the injury site by which of the following?
Clotting
What are special proteins that attack invading organisms called?
Antibodies
What is the average pH of whole blood?
7.35 - 7.45
Which of the following is the most abundant plasma protein and the one responsible for osmotic pressure of plasma?
Albumin
Which plasma protein is responsible for antibodies and transport proteins?
Globulins
Which plasma protein attacks foreign proteins and pathogens?
Immunoglobulins
Which palsma protein is involved in blood clotting?
Fibrogens
_______________ bind(s) and transport(s) carbon dioxide and oxygen.
Hemoglobin
The ____________ is the precentage of whole blood volume occupied by cellular elements.
Hematocrit
Which surface atigen on red blood cells determines blood type?
A, B, and Rh
What is thrombocytopenia?
Low platelet count
Which chambers of the heart are associated with the pulomary circuit?
Right ventricle and left atrium
Which connective tissue divides the thoracic cavity into two pleural cavities and enclose the heart?
Mediastinum
The muscular wall fo the heart is called what?
Myocardium
Which of the following is true of the foramen ovale?
Closes at birth, penetrates the interatial septum from the fifth week of embryonic development unitl birth, and allows blood flowfrom the right atrium to the left atrium (all of the above)
The valve between the left atrium and left ventricle is the :
Mitral valve, bicuspid valve or left atrioventricular valve (all of the above)
The right coronary artery divides into what branches?
Marginal and posterior interventricular
What is an area of dead tissue caused by an interruption in cardiac blood flow called?
Infarct
The influx of ________________ rapidly depolarizes the cardiac contractile cells.
Sodium
The introduction of ______________ initiates contraction during the plateau phase.
Calcium
The normal rate of contraction is established by ________________ cells, the nodal cells that reach threshold first.
Pacemaker
_______________ form branching networksand are barely the diameter of a single red blood cell.
Capillaries
Which layer of a blood vessel contains smooth muscle tissue
Tunica media
The formation of lipid deposits in the tunica media associated with damage to the endothelial lining is called what?
Atherosclerosis
Which of the following control the blood flow into the capillary?
Precapillary 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, blood pressure, and peripheral resistance. (all of the above)
Which portion of the brain has the cardiac and vasomotor centers?
Medulla oblongata
