study exam 2

which one of the following organs is active in the destruction of erythrocytes stores iron acts as a blood reservoir phagocytizes foreign material and produce lymphocytes carotid body, lymph nodes, spleen, dubissary

spleen

matching waves

-distance between t and the next p wave: speed of the heart beat

-t wave: marks the end of ventricular systole

-p wave: spread of electrical activity through atrial muscle

-qrs wave: spread of electrical activity to cause ventricular systole

distance between q and s: speed for ventricles to depolarize

pus is a by product from this cell engulfing bacteria and necrotic tissue

neutrophil

the mitral valve has__cuspids

2

red blood cells travel__miles in their 120 day lifespan

700

at an injury site, plasmin is an enzyme that dissolves a blood clot as the new tissue grows

true

the heart sound lub is caused by

closure of the av valves and contraction of the ventricles

during the blood clotting process serotonin acts as a hormone and causes__at the injury site

vasconstriction

the dub heart sound is the__sound

second

during embryonic development the heart is in a sac called the__

pericardium

a heart murmur is when a valve fails to close completely and there is blood leakage

true

pulse is detectible due to the pressure exerted on the artery during__

contractions of the left ventricle

which is the only organ that feeds directly into the inferior vena cava

liver

during the blood clotting process thromboplastin…

Converts prothrombin to thrombin

the pulse wave and blood flow is at the same pace

false

in the fetus, what is the structure (short cut) that permits blood to flow from the right atrium to the left atrium and by pass the lungs

Foramen ovale

a clot in the__arteries is the main cause of a heart attack

coronary

the heart has__chambers

4

what causes the dub heart sound

closing the semilunar valves

an increase in the resistance to blood flow to the lungs would cause hypertrophy of which one of the following chambers

Right ventricle

when hemoglobin is in the__state it is unable to transport o2 because iron is in a__state

methemoglobin, ferric

matching picture

-1: superior vena cava

-4: pulmonary valve

-5: right atrium

-6: tricuspid valve

-7: inferior vena cava

-8: descending aorta

-9: right ventricle

-10: left ventricle

-11: aortic valve

-12: moral valve

-13: left atrium

-15: to the lung

-14: aorta

the p wave on the ecg correlates to the electrical activity in the atria

true

it takes__to form a red blood cell

5 days

the qrs in complex/wave on an ecg appears due to

Ventricular depolarization

Biliverdin is green in color

true

match ateries

-circle of willis: supplies the brain with blood

-gastric: supplies the stomach with blood

renal: supplies the kidneys with blood

-coronary: supplies the heart with blood

-bi-carotid: supplies the face with blood

-hepatic: supplies the liver with blood

-mesenteric: supplies the small intestines with blood

albumin and globulins are referred to as__proteins and are produced by the__

plasma, liver

in fetal circulation, the highest concentration of o2 is found in the__

umbilical vein

when a blood sample is spun down, erythrocytes, leukocytes, and thrombocytes make__%of the sample

45

wave matching

-1: p wave

-2: q wave

-3: r wave

-4: s wave

-5: t wave

the t wave on an ecg correlates to the time for the ventricles to depolarize

false

an erythrocyte contains hemoglobins select correct choices that describe hemoglobin

-Heme is made up of iron

-O₂ binds with the heme

-Hemoglobin has a higher affinity for carbon monoxide than oxygen

-CO₂ binds with the globin

-Globin is made up of amino acids

adult stem cells are formed in__

bone marrow

conditions

-jaundice: excess buildup of bilirubin

-red water: hb in blood plasma and excreted through urine

-hemagglutination: clumping of rbc transfusing blood of the wrong type

-anemia: decrease in functional rbc and decrease in quantity of hb

-hypochromic anemia: blood loss between 15-30% hb

-aplastic anemia: not enough rbc produced

-polycythemia: over production of rbc

-pernicious anemia: failure of rbc to develop properly

-sickle cell anemia: sickle shape

-erythroblastosis fetalis: rh factors in unborn babies

-hemoconcentrations: ration of rbc to fluid is above normal