Quiz 9 Flashcards
What leaves the left ventricle?
Aorta.
What is a hormone that speeds up maturation of red blood cells?
Erythropoietin.
What is a vessel with the most smooth muscle?
Artery.
What is a vessel receiving deoxygenated blood from capillaries?
Venule.
What vessel holds the most blood volume?
Vein.
What is not a function of plasma proteins?
Carry 02.
What cells lack a nucleus when mature?
Red blood cells.
Anemia is not concerned with a lack of what?
Neutrophils.
What is a granular leukocyte and fights parasitic worms?
Eosinophils.
What is a granular leukocyte that releases histamines?
Basophils.
What is an agranular leukocyte that capture microbes but also call in other white blood cells?
Dendritic cells.
Megakaryocytes are responsible for producing what?
Platelets.
Damaged blood vessels can release what activator to commence with clotting?
Prothrombin.
To finally seal a cut, what combines with red blood cells?
Fibrin.
What is the most tissue of the heart?
Myocardium.
What separated the right and left sides of the heart?
The septum.
The atrioventricular valve on the right is called what?
The tricuspid valve.
What is not a semilunar valve: chordae, pulmonary, aortic.
Chordae.
What sends blood to the pulmonary circuit?
Right ventricle.
What sends 02 rich blood to the rest of the body?
Left ventricle.
The cardiac output is a measurement of what per minute?
Left ventricle.
The “dub” of the “Lub dub” has to do with what valves closing?
Semilunar
The ______ node will take over if the _____ node fails. Result is a slower heartbeat.
AV/SA.
Both the SA and the AV nodes are found where in the heart?
Right atrium.
What node helps regulate the contraction of the atria?
SA.
The pulmonary circuit concerns what side of the heart?
Right.
What system is when blood circulation begins and ends in capillaries?
Portal.
The hepatic portal system has capillaries that go first where? Then to a vein and capillaries again and meet where?
Small intestine/liver.
Define diastole.
Relaxation of the heart muscle.
Define systole.
Contraction of the heart muscle.
List two ways that veins carry blood back to the heart.
Skeletal muscle contraction,
Valves to prevent back flow and direct blood toward the heart.
Briefly state what the systemic circuit does.
Circulate blood throughout the whole body excluding the lungs.
Briefly describe angioplasty and compare with angioplasty involving stents.
Angioplasty is where a balloon is inserted into and artery to stretch it and prevent blockage and buildup. Balloon will collapse.
With a stent, balloon and stent are inserted, balloon collapsed but stent will remain.
List the steps that occur when a heartbeat occurs.
Measured by both atrium contracting, both ventricles contracting, then all relax. SA node initiates heartbeat and contracts right atrium, and AV node contracts atrium.
What occurs at arterial end of a capillary bed and why?
Water leaves the capillary because blood pressure is higher inside than outside.
What is an arteriovenous shunt?
Between capillary beds, allowing blood to bypass beds so movement of blood from arterioles goes directly to venules.
