In closed circulatory systems, the series of vessels (arteries and
veins) are all connected in like a circuit by the capillaries and the
circulatory fluid is blood.
a. True
b. False
a. True
Open circulatory systems are kept under high pressure while closed
circulatory systems are kept under low pressure.
a. True
b. False
b. False
Which of the following about closed circulatory systems is
incorrect?
a. The circulating fluid is blood.
b. Blood is
kept separate from the extracellular fluid by retaining it within
blood vessels.
c. Closed circulatory systems are held under high
pressure.
d. There is some capability to preferentially direct
blood flow to specific organs but it’s not as good as with open
circulatory systems.
e. Exchange of gases and nutrients with the
tissues occurs across small-diameter vessels called capillaries.
d. There is some capability to preferentially direct blood flow to specific organs but it’s not as good as with open circulatory systems.
Which of the following regarding open circulatory systems are
correct?
a. The circulatory fluid is blood.
b. Blood is an
essentially a mixture of haemolymph and extracellular fluid
(ECF).
c. The circulatory fluid is not kept separate from the
extracellular fluid.
d. Open circulatory systems are low pressure
systems.
e. Regulation of haemolymph flow to different organs is
possible but not as good as in closed circulatory systems.
f. All
are correct expect for A and B.
f. All are correct expect for A and B.
Carries blood away from the heart (Most times, it carries oxygenated
blood, but this does not include the heart)
a. Blood
vessel
b. Veins
c. Arteries
d. capillaries
e. All
are correct.
c. Arteries
Haemolymph is composed of blood and extracellular fluid.
a.
True
b. False
a. True
In the human heart, what is the name of the valves that separate the
right atria from the right ventricle and the left atria from the left
ventricle?
a. Semilunar valves.
b. Aortic valves.
c.
Pulmonary valves.
d. Atrioventricular valves.
e.
Ventrolateral valves.
d. Atrioventricular valves.
Carries blood back to the heart (Most times, it carries deoxygenated
blood, but this does not include the heart)
a. Blood
vessel
b. Veins
c. Arteries
d. capillaries
e. All
are correct.
b. Veins
Blood flows from the heart to arteries to capillaries to veins back
to the heart again.
a. True
b. False
a. True
Which statement about the closed circulatory system is
correct?
a. Hold under being high pressure systems which means
blood pressure can be kept high leading to high rate of blood flow to
tissues.
b. high levels of oxygen and nutrient delivery which
contribute to higher metabiotic rates and activities.
c. Allow
for blood to be directed to specific organs and is possible to
regulate blood flow to individual organs either increasing or
decreasing blood flow.
d. All are correct.
d. All are correct.
Blood is separated from the extracellular fluid (ECF) in a closed
system.
a. True
b. False
a. True
What role do small blood vessel play?
a. Exchange of
gases
b. Exchange of water
c. Exchange of nutrients
d.
All the above.
d. All the above.
The aorta in humans carries deoxygenated blood.
a. True
b. False
b. False
The pulmonary arteries in humans carry oxygenated blood.
a.
True
b. False
b. False
How are the arteries connected to the veins?
a. By blood
vessels
b. By capillaries
c. By the blood
d. By
pressure forces
b. By capillaries
In an open circulatory system, the circulatory fluid is
haemolymph.
a. True
b. False
a. True
Which statement about the open circulatory system is
incorrect?
a. Arteries and veins are not joined by the
capillaries so do not form a complete circuit and the blood is not
enclosed in the blood vessels.
b. It contains mixture of blood
and extracellular fluid because the circulatory fluid is
haemolymph.
c. low pressure systems so blood flow to organs is
not as fast or efficient less ability to direct blood flow to specific
organs as there is no specific vessel going directly to an
organ.
d. All the above are correct.
d. All the above are correct.
The right side of the heart is a low-pressure pump that pumps
deoxygenated blood to the lungs.
a. True
b. False
a. True
The human/mammalian heart consists of two ventricles (left and right)
and two atria (left and right).
a. True
b. False
a. True
The left side of the heart is a high-pressure pump that pumps
oxygenated blood from the heart to the systemic tissues.
a.
True
b. False
a. True
Oxygenated blood returning to the heart from the lungs enters the
left atria through the?
a. Inferior Vena Cava
b. Pulmonary
Arteries
c. Pulmonary Veins
d. Aorta
e.
atrioventricular valves
c. Pulmonary Veins
Which of the following blood vessels send deoxygenated blood from the
tissues into the right atria?
a. Pulmonary arteries.
b.
Pulmonary veins.
c. Aorta.
d. Superior and inferior vena cava.
d. Superior and inferior vena cava.
Which of the following blood vessels send oxygenated blood from the
lungs into the left atria?
a. Pulmonary arteries.
b.
Pulmonary veins.
c. Aorta.
d. Superior and inferior vena cava.
b. Pulmonary veins.
Deoxygenated blood returning to the heart from the systemic
circulation (all organs not including the lungs) enters the right
atria through the?
a. Superior and Inferior Vena Cava
b.
Pulmonary Arteries
c. Pulmonary Veins
d. Aorta
e.
atrioventricular valves
a. Superior and Inferior Vena Cava
Oxygenated blood leaves the left ventricle through a semilunar valve
and enters the
a. Superior and Inferior Vena Cava
b.
Pulmonary Arteries
c. Pulmonary Veins
d. Aorta
e.
atrioventricular valves
d. Aorta
How do Deoxygenated blood and Oxygenated blood must pass to enter to
their associated ventricle?
a. Superior and Inferior Vena
Cava
b. Pulmonary Arteries
c. Pulmonary Veins
d.
Aorta
e. atrioventricular valves
e. atrioventricular valves
Deoxygenated blood leaves the right ventricle through a semilunar
valve and enters the
a. Superior and Inferior Vena Cava
b.
Pulmonary Arteries
c. Pulmonary Veins
d. Aorta
e.
atrioventricular valves
b. Pulmonary Arteries
The receiving chambers of the heart include the right and left
atria.
a. True
b. False
a. True
In which type of heart is there mixing of oxygenated and deoxygenated
blood?
a. fish
b. frog
c. crocodile
d. all the
above
e. none of the above
b. frog
Which of the following transports oxygen-rich blood?
a.
pulmonary vein
b. pulmonary artery
c. superior vena
cava
d. Right Atrium
e. None of the above
a. pulmonary vein
Which of the following blood vessels receives blood directly from the
right ventricles?
a. pulmonary arteries
b. right
aorta
c. superior vena cava
d. inferior vena cava
e.
right pulmonary vein
a. pulmonary arteries
Oxygen poor blood passes through the __________
a. right av and
pulmonary valves
b. right av valve only
c. left av and
aortic valve.
d. left av valve only.
e. pulmonary and aortic valve
a. right av and pulmonary valves
The foramen of Panizza in the crocodilian heart could be considered
analogous to which of the following in the human fetal heart.
a.
The umbilical artery.
b. The umbilical vein.
c. The foramen
ovale.
d. The ductus arteriosus.
d. The ductus arteriosus.
In which of the following organisms does blood flow from the
pulmocutaneous circulation to the heart before circulating through the
rest of the body?
a. annelids
b. molluscs
c.
fishes
d. frogs
e. insects
d. frogs
There are semilunar valves that separate the left ventricle from the
aorta and the right ventricle from the pulmonary artery.
a.
True
b. False
a. True
Which vessels of the heart receives blood from the right
ventricle
a. venae cavae
b. pulmonary artery
c.
aorta
d. pulmonary veins
b. pulmonary artery
The mammalian fetus receives blood from the?
a. Placenta
b.
Heart
c. Umbilical Vein
d. Amniotic Fluid
e. None are correct.
a. Placenta
The gas exchange organ for the human fetus is the placenta.
a.
True
b. False
a. True
Oxygenated blood of the mammalian fetus is transported into the right
atria of the fetus by what?
a. Blood vessels
b.
Capillaries
c. Umbilical Vein
d. Amniotic Fluid
e. None
are correct.
c. Umbilical Vein
The pulmonary artery is the only artery in the body that carries
deoxygenated blood while the pulmonary vein is the only vein that
carries oxygenated blood.
a. True
b. False
a. True
Where are semilunar valves to be found in the mammalian
heart?
a. where blood goes from atria to ventricles
b. on
the right side of the heart only
c. where the pulmonary veins
attach to the heart
d. at the places where blood leaves via the
aorta and pulmonary arteries
e. at the places where the anterior
and posterior venae cavae enter
d. at the places where blood leaves via the aorta and pulmonary arteries
During fetal life, these carriers oxygenated blood from the placenta
to the fetus.
a. Umbilical Veins.
b. ductus
arteriosus
c. Umbilical arteries
d. Placenta
a. Umbilical Veins.
Both the foramen ovale and the ductus arteriosus serve to reduce or
prevent blood flow to the lungs
a. True
b. False
a. True
Hole in the heart between the pulmonary artery and the aorta is the
ductus arteriosus
a. True
b. False
a. True
Hole in the heart between right atrium of the heart to the left
atrium is the foramen ovale.
a. True
b. False
a. True
Foramen ovale shunts the blood flow to the lung by allowing blood to
flow into right atria into left atria instead of the right atria into
right ventricle that gets into the lung.
a. True
b. False
a. True
Fetal Circulation is made up of?
a. Umbilical Veins.
b.
ductus arteriosus
c. Umbilical arteries
d. Placenta
e.
All the above are correct.
e. All the above are correct.
The foramen ovale ________
a. connected the two atria in the
feta heart
b. is a condition in which the heart valves do not
completely close
c. is a shallow depression in the
interventricular septum
d. is a connection between the pulmonary
trunk and the aorta in the fetus
a. connected the two atria in the feta heart
Which statement about the fetus’ placenta is correct?
a. It is a
source of nutrients to the fetus.
b. It removes wastes.
c.
Where fetus receives blood
d. All are correct.
e. None are correct.
d. All are correct.
The fetal lungs are breathing amniotic fluid rather than oxygen
air.
a. True
b. False
a. True
Blood of the fetus is shunted away from the lungs and inside go to
the aorta.
a. True
b. False
a. True
Pulmonary circuit is under low pressure than the systemic circuits to
protect the blood vessels.
a. True
b. False
a. True
In the fetus, oxygenated blood from the placenta first enters
the___________ of the heart.
a. left atrium
b. left
ventricle
c. right atrium
d. right ventricle
c. right atrium
The foramen ovale allows more then half the blood returning from the
_____ _____ to cross immediately into the _____ _____.
a. right
atrium, left atrium
b. left atrium, right atrium
c. left
ventricle, right ventricle
d. right atrium, right
ventricle
e. left atrium, left ventricle
a. right atrium, left atrium
This connects the pulmonary artery to the aorta, which allows
bypassing of the pulmonary circuit.
a. Forman ovale
b.
ductus arteriosus
c. semilunar valve
d. None the above.
b. ductus arteriosus
Cephalopods (squid and octopi) have three hearts where two are
branchial hearts and one systemic heart.
a. True
b. False
a. True
In cephalopods (squid and octopi), deoxygenated blood is pumped by
the two branchial hearts across the gills where it is oxygenated.
Oxygenated blood then flows to the systemic heart which pumps it to
the systemic circulation.
a. True
b. False
a. True
Cephalopods have a closed circulatory system.
a. True
b. False
a. True
Which of the following have hearts that are composed of 2 atria and 2
ventricles?
a. Humans
b. Water-breathing Fish
c.
Reptiles
d. A and C
d. A and C
Which of the following is true regarding the Crocodilian
heart?
a. resistance to blood flow in the lungs is low while
under water
b. the Foramen of Panizza allows blood flow between
ventricles
c. the left ventricle pumps blood into the right aorta
during normal breathing
d. the RV-left aorta valve closes shut
while under water due to high RV pressure
e. all the above
c. the left ventricle pumps blood into the right aorta during normal breathing
In the teleost fish, the ventral aorta carries oxygenated blood, and
the dorsal aorta carries deoxygenated blood.
a. True
b. False
b. False
Which of the following moves O2 through bloodstream?
a. sinus
venosus
b. atrium
c. ventricle
d. conus
arteriosus
e. All the above
e. All the above
Fish heart chambers consist of.
a. ventricle
b.
atrium
c. capillaries
d. valves
e. A and B only.
e. A and B only.
What is the sequence of oxygenated blood flow into, through and out
of the amphibian heart?
a. Lungs → pulmonary vein → left atria →
ventricle → conus arteriosus → dorsal aorta.
b. Lungs →
pulmonary artery → left atria → ventricle → conus arteriosus → dorsal
aorta.
c. Lungs → pulmonary vein → left atria → ventricle →
conus arteriosus → systemic arteries.
d. Lungs → pulmonary
artery → left atria → ventricle → conus arteriosus → systemic
arteries.
e. Lungs → pulmonary vein → right atria → ventricle →
conus arteriosus → systemic arteries.
f. Lungs → pulmonary
artery → right atria → ventricle → conus arteriosus → systemic arteries.
c. Lungs → pulmonary vein → left atria → ventricle → conus arteriosus → systemic arteries.
In the lungfish the dorsal aorta comes directly off the left
ventricle.
a. True
b. False
b. False
Lungs, start with O2 diffusion: Tissues, start with CO2
diffusion.
a. True
b. False
a. True
Blood leaving the left atrium passes through the
a. right
atrioventricular valve
b. pulmonary semilunar valve
c. left
atrioventricular valve
d. aortic semilunar valve
c. left atrioventricular valve