BMSP 2146 Exam #2 Animations

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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


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