SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
MCAT Biology Circulatory System
Start Test
Study First
Subjects
:
mcat
,
health-sciences
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Transportation of blood though the body and exchange of material btw blood and tissues
Capillaries
increase vagal signal and inhibits sympathetic input
tricuspid valve
Fxn of circulatory system
2. Occurs when increased cardiac output is needed; the postganglionic nerve directly innervates the heart - releasing norepinephrine - increasing heart rate and force of contraction
Sympathetic regulation of heart
Peripheral resistance
local autoregulation
increase vagal signal and inhibits sympathetic input
3. Vessels that carry blood away from the heart at high pressure
increased hydrostatic pressure in the capillaries - which increases the fluid that leaks out of the capillaries into the interstitum
AB+ since no antibodies are made to any blood type
arteries
albumin b/c it provides the bulk of oncotic pressure in blood vessels - preventing edema
4. Monocyte that phagocytoses debris and microorganisms - has amoeboid motility - and displays chemotaxis
serum
macrophage
Erythropoetin
5 phases of cardiac muscle cell contraction
5. Metabolic waste product in breakdown of amino acids
Platelet fxn
It has the most Na leak channels - allowing to reach threshold potential first; all other nodes leak - but rate at as quick of a rate
cardiac output (L/min)
urea
6. At position 6 - missense mutation substitutes valine for glutamate. valine is hydrophobic - where glutamate was charged. It is an autosomal recessive disease where RBCs accumulated in small vessels - heterozygote for (blank) shows resistance to malar
Sickle cell anemia
veins
Arterial pressure=ventricular pressure
resistance
7. Is cardiac output the same or different btw the two ventricles?
fibrinogen
to transport O2 to tissues and CO2 to the lungs
Intercalated discs
It is the same - otherwise it would lead to fluid backup
8. Caused by closure of Ca channels and opening of K channels
albumin
Coronary veins
Repolarization of nodes
Peripheral resistance
9. Amount of blood pumped w/ each systolic contraction
Secondary transportation of CO2 in the blood
stroke volume
ventricles
Na leak channels
10. Why is the SA node the primary pacemaker?
It has the most Na leak channels - allowing to reach threshold potential first; all other nodes leak - but rate at as quick of a rate
hemostasis
adrenergic tone
Immunoglobulins (antibodies)
11. Gap junctions in the cardiac muscle - where depolarization is communicated directly btw cytoplasm of neighboring cardiac cells
Intercalated discs
primary bicarbonate generated from CO2.
venous return
atria
12. Open when threshold is reached causing membrane potential to increase/depolarize; operate slower than Na channels
coronary sinus
veins
Ca channels
Capillaries
13. ABO blood group and Rh blood group
2 components of antigens
when person that is Rh - is exposed to blood that is Rh+
Thrombus
Erythropoetin
14. Phagocytose bacteria resulting in pus; amoeboid motility and chemotaxis
Frank - Starling Effect
neutrophil
bone marrow
Ca channels
15. What is the direct cause of edema?
increased hydrostatic pressure in the capillaries - which increases the fluid that leaks out of the capillaries into the interstitum
Slow Ca channels
Frank - Starling Effect
increase vagal signal and inhibits sympathetic input
16. Protein that maintains oncotic pressure in capillaries
albumin
adipocytes
Pulmonary and aortic semilunar valves
Vagal Signal
17. 73% of CO2 converted to carbonic acid by carbonic anhydrase - and carbonic acid is converted to bicarbonate - which acts a buffer
Na leak channels
Primary transportation fo CO2 in the blood
hypoxia
B cells and T cells
18. Blood clot or scab circulating in bloodstream
CNS decreases vagal signal and sympathetic input increases
Thrombus
albumin
systemic circulation
19. Destroy parasites and are involved in allergic rxns
It has the most Na leak channels - allowing to reach threshold potential first; all other nodes leak - but rate at as quick of a rate
eosinophil
Platelet fxn
glycolysis. RBC have no ETC - FA oxidation - or TCA cycle
20. As low as pressure gets btw heart beats in arteries
primary bicarbonate generated from CO2.
Third transportation of CO2 in the blood
capillaries
diastolic blood pressure
21. Allow Na to leak across membrane - causing cell potential to get closer to threshold potential; allow threshold to be reached for Ca channels to open let Ca into the cell
Na leak channels
Diastole is longer
albumin
heart rate
22. Request by tissues to increase blood flow - where build up of metabolic waste causes arterioles to dialate
Sympathetic regulation of heart
Ohm's law
Intercalated discs
local autoregulation
23. Glucose - amino acids - and fats
Tense
nutrients
Peripheral resistance
AB+ since no antibodies are made to any blood type
24. Where do all components of the blood develop from?
basophil
SA node
nutrients - wastes - and WBC
bone marrow
25. Resting membrane potential of -90mV and have long duration action potentials
Na leak channels
megakaryocytes
Cardiac muscle cells
albumin
26. What causes tendency of water flow out of blood?
bilirubin
Systole
high osmolarity of tissues
B cells and T cells
27. Difference in pressure=blood flow (L/min)*resitance ^P=Q*R
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
28. Pump blood out of the heart at high pressures into arteries
ventricles
urea
neutrophil
resistance
29. Stretching to greater degree of heart muscle causes more forceful contraction; stretching increase occur by increasing fluid volume
Frank - Starling Effect
arteries
Spleen and liver
Cardiac muscle cells
30. 3 substances that can diffuse through intercellular cleft
AV node
nutrients - wastes - and WBC
Secondary transportation of CO2 in the blood
varicose veins
31. Rh factor that follows dominant pattern (Rh+ in heterozygote)
Platelet fxn
Rh blood group
ventricles
albumin
32. Return of blood to the heart by the vena cava - where increased venous return causes increased stretching of the muscle (increases stroke volume)
venous return
Rh blood group
Baroreceptors
Hemolytic disease of a newborn
33. Peptide hormone secreted from the kidneys to increase RBC production in bone marrow
High since the concentration of plasma proteins has increased due to movement of water
Erythropoetin
Lipoproteins
O- since there are no surface antigens for antibodies to bind to...
34. The principle sugar in blood that maintains a relatively constant concentration for adequate nutrition
Spleen and liver
Glucose
nutrients - wastes - and WBC
increased hydrostatic pressure in the capillaries - which increases the fluid that leaks out of the capillaries into the interstitum
35. Store and release histamine and are involved in allergic rxns
adipocytes
basophil
pulmonary circulation
Erythropoetin
36. Site of exchange btw blood and tissues; smallest vessels that allow one RBC through at a time
high osmolarity of tissues
ABO blood group
capillaries
Relaxed
37. Essentially 0 mmHg - which results b/c of branching of vessels dissipating pressure to overcome resistance
high osmolarity of tissues
Relaxed
Bundle of His
venous blood pressure
38. Bone marrow cells that give rise to RBC and platelets
megakaryocytes
Ischemia
Blood plasma
Repolarization of nodes
39. Highest blood pressure that occurs during ventricular contraction
Frank - Starling Effect
Sickle cell anemia
systolic blood pressure
Intercalated discs
40. Fat storage cells of the body
Intercalated discs
Bundle of His
adipocytes
WBC
41. Voltage - gated channels that stay open longer than Na channels and open later responsible for the plateau phase of cardiac muscle contraction
Slow Ca channels
fibrin
Blood plasma
nutrients
42. Connected to SA node via internodal tract - and passes signal to Common bundle of His to contract ventricles
5 phases of cardiac muscle cell contraction
atria and ventricles
varicose veins
AV node
43. Maximize entry of Ca into the cell by allowing entry of Ca extracellular environment; leads to contraction of actin - myosin fibers
adipocytes
atria and ventricles
basophil
T- tubules
44. Adequate circulation - but O2 supply is reduced (no build up waste products or loss of nutrients)
Coronary veins
Baroreceptors
hypoxia
basophil
45. First branches from the aorta that provide the heart's blood supply
Frank - Starling Effect
Coronary arteries
hypoxia
Sickle cell anemia
46. Valves between the ventricle and the atria to prevent back flow
atrioventricular valves
ABO blood group
Erythropoetin
megakaryocytes
47. Receives deoxygenated blood from systemic circulation (superior and inferior vena cava)
AB+ since no antibodies are made to any blood type
bilirubin
Right atrium
diastolic blood pressure
48. What is the most important plasma protein in the body? Why?
Pulmonary and aortic semilunar valves
valves
albumin b/c it provides the bulk of oncotic pressure in blood vessels - preventing edema
Erythrocytes
49. At the end of the capillary - is the osmotic pressure high or low?
AB+ since no antibodies are made to any blood type
macrophage
glycolysis. RBC have no ETC - FA oxidation - or TCA cycle
High since the concentration of plasma proteins has increased due to movement of water
50. Precursor to fibrin - which is necessary for blood clotting
fibrinogen
WBC
T- tubules
high osmolarity of tissues
Sorry!:) No result found.
Can you answer 50 questions in 15 minutes?
Let me suggest you:
Browse all subjects
Browse all tests
Most popular tests
Major Subjects
Tests & Exams
AP
CLEP
DSST
GRE
SAT
GMAT
Certifications
CISSP go to https://www.isc2.org/
PMP
ITIL
RHCE
MCTS
More...
IT Skills
Android Programming
Data Modeling
Objective C Programming
Basic Python Programming
Adobe Illustrator
More...
Business Skills
Advertising Techniques
Business Accounting Basics
Business Strategy
Human Resource Management
Marketing Basics
More...
Soft Skills
Body Language
People Skills
Public Speaking
Persuasion
Job Hunting And Resumes
More...
Vocabulary
GRE Vocab
SAT Vocab
TOEFL Essential Vocab
Basic English Words For All
Global Words You Should Know
Business English
More...
Languages
AP German Vocab
AP Latin Vocab
SAT Subject Test: French
Italian Survival
Norwegian Survival
More...
Engineering
Audio Engineering
Computer Science Engineering
Aerospace Engineering
Chemical Engineering
Structural Engineering
More...
Health Sciences
Basic Nursing Skills
Health Science Language Fundamentals
Veterinary Technology Medical Language
Cardiology
Clinical Surgery
More...
English
Grammar Fundamentals
Literary And Rhetorical Vocab
Elements Of Style Vocab
Introduction To English Major
Complete Advanced Sentences
Literature
Homonyms
More...
Math
Algebra Formulas
Basic Arithmetic: Measurements
Metric Conversions
Geometric Properties
Important Math Facts
Number Sense Vocab
Business Math
More...
Other Major Subjects
Science
Economics
History
Law
Performing-arts
Cooking
Logic & Reasoning
Trivia
Browse all subjects
Browse all tests
Most popular tests