Lab 3

 0%

Question 1 of 35

What are the features of a ventral view? (3) = Diagonal interventricular sulcus / avioles / pulmonary trunk.

Question 1 of 35

Question 2 of 35

What are the features of a dorsal view? (2) = Verticlal interventricular sulcus / no pulmonary trunk.

Question 2 of 35

Question 3 of 35

What branch arises from the aorta? = Branchiocephalic artery.

Question 3 of 35

Question 4 of 35

What links the aorta to the pulmonary trunk? (Adult) = Ligamentium arteiosum.

Question 4 of 35

Question 5 of 35

What opening of the heart is most ventral when viewed from above? = Pulmonary trunk.

Question 5 of 35

Question 6 of 35

Which opening is in the centre? = Aorta.

Question 6 of 35

Question 7 of 35

How many openings are in the right atrium? = 3.

Question 7 of 35

Question 8 of 35

What are they? (3) = Right large anterior vena cava, posterior (large) vena cava, left (small) anterior vena.

Question 8 of 35

Question 9 of 35

How many parts does the atrium have? = 2.

Question 9 of 35

Question 10 of 35

What are they? (2) = Atrium and auricle. = Atrium and auricle.

Question 10 of 35

Question 11 of 35

What openings are in the left atria? = Lex pulmonary veins.

Question 11 of 35

Question 12 of 35

What structure is found in the RV but not in the LV? = Moderator band.

Question 12 of 35

Question 13 of 35

Which valve separates the RV from the RA? = Tricuspid.

Question 13 of 35

Question 14 of 35

What is the purpose of the chordae tendinae? = Prevent bicuspid and tricuspid valves from being blown into atria.

Question 14 of 35

Question 15 of 35

What fibres does the moderata band contain? = Purkinjs.

Question 15 of 35

Question 16 of 35

Where are the openings of the coronary arteries located? = Behind semilunar valves of the aorta.

Question 16 of 35

Question 17 of 35

Where do the cardiac veins drain into? = Venae cavae.

Question 17 of 35

Question 18 of 35

Where is the fossa ovalus located? = Interatrial septum.

Question 18 of 35

Question 19 of 35

What is the peak pressure of the RA? = 5mmHg.

Question 19 of 35

Question 20 of 35

What is the peak pressure of the LA? = 8mmHg.

Question 20 of 35

Question 21 of 35

What is the peak pressure of the RV? = 27mmHg.

Question 21 of 35

Question 22 of 35

What is the peak pressure of the LV? = 120mmHg.

Question 22 of 35

Question 23 of 35

Which valves cause the first heart sound? = Tricuspid and bicuspid (mitral).

Question 23 of 35

Question 24 of 35

Which valves cause the second heart sound? = Semilunar valves.

Question 24 of 35

Question 25 of 35

What might happen if a papillary muscle ruptured? = Mitral regurgitation, pulmonary edema, death.

Question 25 of 35

Question 26 of 35

What might cause it? = Myocardial infarction.

Question 26 of 35

Question 27 of 35

Why do semilunar valves not require chordae tendinae? = Smaller openings – less force, shape at cusps.

Question 27 of 35

Question 28 of 35

What is the prenatal structure of the ligamentum arteriosum? = Ductus arteriosus.

Question 28 of 35

Question 29 of 35

What was its function? = To allow passage of blood from pulmonary trunk to aorta.

Question 29 of 35

Question 30 of 35

What was the prenatal structure of the fossa ovalis? = Foramen ovale.

Question 30 of 35

Question 31 of 35

What was its function? = To allow passage of blood from RA to LA.

Question 31 of 35

Question 32 of 35

Which atrium had the flap? = LA.

Question 32 of 35

Question 33 of 35

What closes the flap at birth? = Pressure of the LA.

Question 33 of 35

Question 34 of 35

What closes the ductus arteriosus? = Presence of oxygen in the blood.

Question 34 of 35

Question 35 of 35

What are the coronary ostia? = Openings of coronary arteries in aorta.

Question 35 of 35