blood & cardiovascular quiz

what is blood?

• a connective tissue with a fluid extracellular matrix

• a connective tissue with a particle-like extracellular matrix

• heme + globin

• RBCs, WBCs, Plasma only

when old red blood cells are destroyed, what is hemoglobin broken into? (select all that apply)

• heme + globin, platelets

• heme, Iron + Belirubin

• Amino Acids globin,

• heme + globin, plasma

what is the corect chronological process of erythropoiesis? (process of forming RBCs?)

• kidneys recieve a trigger about low RBCs, kidney secrete EPO into blood, EPO stimulates production of RBCs in bone marrow

• Kidneys recieve a trigger about low RBCs, EPO stimulates production of RBCs

• Kidneys recieve a trigger about low blood cells, Kidneys secrete EPO into the blood, EPO travels to the thalamus gland and triggers formation of RBCS

• Kidneys recieve a trigger about low blood cells, EPO AND ADH are secreted into blood, EPO AND ADH stimulate production of RBCs in bone marrow

what is hemopoiesis and where does this process occur?

• forms hemoglobin, adrenal medulla

• forms ALL blood cells, red bone marrow

• forms hemoglobin, red bone marrow

• forms ALL blood cells, yellow bone marrow

what is the first step of clot formation?

• secretion of histamine

• vasodilation, erythema

• vascular spasm, constriction of blood vessles

• fibrinolysis

what factors prevent clot formation? (select all that apply?)

• smooth endothelium

• regular blood flow

• dilution of thrombin build up

• fibrin net

what is the pericardium?

• serous membrane/sac that lubricates and protects the heart

• serous membrane that lines the mediastinum

• serous membrane that lines and lubricates heart chambers

• membrane that forms cardiac muscle

what is the epicardium?

• a thick layer of muscle that makes up the walls of the heart

• a thin epithelial / visceral layer that lines the heart AND the lungs

• a thin epithelial / visceral layer that covers the heart outer surface

• thin epithelial layer that lines heart chambers

What happens during the first step in the cardiac cycle (passive ventricular filling)? (select all that apply)

• heart relaxes and returning blood fills atria

• AV valves open

• (+) in pressure

• SA node is stimulated

what happens during the second step of the cardiac cycle (atria systole)? (select all that apply)

• atria contract

• atria relax

• SLV close & blood is ejected into ventricles

• SLV close & blood fills ventricles passively