Bio 139 KCTCS- Exam 1 Latest Update 2024-2025 Exam 150 Questions and 100% Verified Correct Answers Guaranteed A+
3 conditions that lead to congestive heart failure - CORRECT ANSWER: Coronary
Atherosclerosis Persistently high BP Multiple MI
- components of the conduction system of the heart (AP for all parts) - CORRECT
ANSWER: SA Node (80-100 AP/min)
AV Node (50 AP/min) Bundle of His (35 AP/min) Bundle Branches (32 AP/min) Purkinje Fibers (30 AP/min)
Action potential of the heart (contractile cells) - CORRECT ANSWER:
Action potential of the heart (pacemaker cells) - CORRECT ANSWER:
Adult blood volume - CORRECT ANSWER: 5 liters
Agranulocytes - CORRECT ANSWER: lymphocytes and monocytes
amoeboid motion - CORRECT ANSWER: sliding movement observed in some protists
angina pectoris - CORRECT ANSWER: chest pain, which may radiate to the left arm
and jaw, that occurs when there is an insufficient supply of blood to the heart muscle
aplastic anemia - CORRECT ANSWER: failure of blood cell production in the bone
marrow
Atherosclerosis - CORRECT ANSWER: condition in which fatty deposits called plaque build up on the inner walls of the arteries
atrial fibrillation - CORRECT ANSWER: rapid, random, ineffective contractions of the atrium (random firing at SA node)
Basophils - CORRECT ANSWER: Releases histamine and Heparin
Bradycardia - CORRECT ANSWER: slow heart rate (under 60 bpm)
Cardiac Cycle - CORRECT ANSWER:
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Cardiac Output (CO) - CORRECT ANSWER: measurement of the amount of blood
ejected per minute from either ventricle of the heart CO = HR x SV
Clot buster enzyme - CORRECT ANSWER:
clot retraction - CORRECT ANSWER: stabilization of the clot by squeezing serum from the fibrin strands- causing vessel to pull together
collegen fibers - CORRECT ANSWER: Become exposed during injury to blood vessels
colony stimulating factors - CORRECT ANSWER: stimulate growth and differentiation of immature leukocytes in bone marrow
Degradation of RBCs - CORRECT ANSWER: Globin- becomes free amino acids
Iron- binds to ferritin and hemosiderin Heme- becomes bilirubin
Describe separated blood - CORRECT ANSWER:
Diapedesis - CORRECT ANSWER: the passage of blood cells through the intact walls of the capillaries, typically accompanying inflammation.
Diastole - CORRECT ANSWER: relaxation phase of the heartbeat
Each RBC can carry ___ O2 molecules. - CORRECT ANSWER:
Each RBC contains how many hemoglobin molecules? - CORRECT ANSWER: 280
million
ectopic pacemaker - CORRECT ANSWER: a pacemaker other than the SA node-
usually the AV node
electrocardiogram - CORRECT ANSWER:
embolus - CORRECT ANSWER: A clot that breaks lose and travels through the
bloodstream.
End Diastolic Volume (EDV) - CORRECT ANSWER: Volume of blood in the ventricles
at the end of diastole ("preload")
End Systolic Volume (ESV) - CORRECT ANSWER: Amount of blood remaining in each
ventricle at the end of systole (contraction).
EDV - SV = ESV
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