BMSP 2146 Exam #2 Animations
Pulmonary veins enter the...
left atrium
The semilunar valves are open as a result of...
ventricular systole
Choose the correct order of vessels leaving and then returning to the heart:
arteries, arterioles, capillaries, venules, veins
How many pulmonary veins are there?
four
Inward and outward movement of fluid at each end of the capillary is regulated by....
net filtration pressure
The difference between blood and interstitial fluid pressure is:
net hydrostatic pressure
Blood in the dural venous sinuses is...
deoxygenated
In the breakdown of hemoglobin, the globin chains...
are broken down by macrophages
The aortic arch gives off branches that supply all of the following areas of the body, except the...
abdomen
Where do action potentials pass in the heart conduction system?
action potentials pass slowly through the atrioventricular node
Left ventricular contraction propels blood through which valve?
aortic valve
During the flow of blood through the body...
blood travels from the right ventricle to the lungs
In the breakdown of hemoglobin, iron is transported...
by transferrin to the spleen, red bone marrow, and liver
Nutrient and gas exchange occur in...
capillary beds
The internal carotid arteries enter the cranial cavity through which opening?
carotid canal
T/F Erythropoesis produces platelets
false
T/F In general, fluid moves into capillaries at their arterial ends and moves out at their venous end
false
T/F The arterial end of the capillary has a negative net filtration pressure
false
T/F The lower limbs receive blood from branches of the ascending aorta
false
T/F The only arteries in the body that carry oxygen-poor blood are the coronary arteries
false
T/F Ventricular systole is represented by the T wave on an ECG
false
The coronary sinus contains blood from the...
heart musculature
The sequence in the breakdown of the non-iron portion of heme is....
heme --> billiverdin --> billirubin --> conjugated billirubin --> billirubin derivatives --> feces and urine
Blood stem cells are called
hemocytoblasts
The major blood supply to the cerebrum is from the...
internal carotid arteries
Which of the following is not derived from the myeloid cell line? (lymphocyte, erythrocyte, megakaryocyte, leukocyte)
lymphocyte
Which of the following is not a type of granulocyte? (monocyte, basophil, eosinophil, neutrophil)
monocyte
What is the name for the muscular rides on the inner wall of the right atrium?
pectinate muscles
Which of the following is NOT associated with the left atrioventricular valve? (3 cusps, pectinate muscles, papillary muscles, chordae tendineae)
pectinate muscles
In the heart, an action potential originates in the...
sinoatrial node
The sequence of travel by an AP through the heart is:
sinoatrial node --> atrioventricular node --> atrioventricular bunde --> bundle branches --> purkinje fibers
Hemopoesis occurs primarily in the...
red bone marrow
Oxygen-poor blood enters which chamber of the heart?
right atrium
The inferior vena cava empties its blood into the...
right atrium
Each cardiac cycle takes about 8/10 of one...
second
The cardiovascular system consists of...
the heart, blood, and blood vessels
Oxygen leaves the blood and carbon dioxide enters in...
the systemic capillary beds
What is the name for the muscular ridges on the inner walls of the right and left ventricles?
trabeculae carneae
From the confluence of sinuses, blood enters...
transverse sinuses
The right atrioventricular valve is also called the...
tricuspid valve
T/F Action potentials are carried by the purkinje fibers from the bundle branches to the ventricular walls
true
T/F All arteries carry blood away from the heart
true
T/F An end-to-end communication between vessels is known as an anastomosis
true
T/F Free billirubin is transported to by the blood to the liver
true
T/F Iron is transported in the blood by transferrin
true
T/F The P wave on the ECG represents atrial depolarization
true
T/F The action potential travels along the interventricular septum to the apex of the heart, where it then spreads superiorly along the ventricular walls
true
T/F The difference between blood and interstitial colloid osmotic pressures is the oncotic pressure
true
T/F The pulmonary veins contain oxygenated blood
true
The electrical impulses that create the QRS complex represent...
ventricular depolarization
