CVS Lectures 1 - 3

Which component of the CVS is the drainage?

Blood needs a circulation system as diffusion becomes exponentially slower as distance increases.

An artery is a vessel with oxygenated blood.

The pulmonary circuit is in [blank_start]series[blank_end] with the systemic circuit. Organ circulations are [blank_start]parallel[blank_end] branches of the systemic circuit.

Which organ is the only organ to receive CO2 rich blood? (Excluding the heart)

The right AV valve is this type of valve.

Choose the correct equation for blood flow.

The blood vascular system is [blank_start]a closed[blank_end] entry, continuous [blank_start]loop[blank_end]. The lymphatic vascular system is [blank_start]an open[blank_end] entry, [blank_start]one way[blank_end] system.

Choose the correct statements about arteries.

To shift the same amount of blood per second, [blank_start]veins[blank_end] must have a cross sectional area twice that of [blank_start]arteries[blank_end].

Choose the incorrect statement about CVS diseases.

Choose the incorrect statement about the heart's position.

Choose the structure(s) that the right atrium receives from.

Which ventricle has a thicker myocardium?

The heart wall's innermost component is the [blank_start]endocardium[blank_end], which is [blank_start]squamous[blank_end] epithelium that provides a non-stick surface and which prevents [blank_start]clots[blank_end]. It also contains loose, irregular fibrous connective tissue, small vessels, and [blank_start]Purkinje fibers[blank_end]. The next layer is the [blank_start]myocardium[blank_end], which is cardiac muscle. The next, more superficial layer is the [blank_start]epicardium[blank_end]. It contains adipose, connective tissue, and [blank_start]large vessels[blank_end]. Its visceral pericardium loops over to become the [blank_start]parietal[blank_end] pericardium, with the [blank_start]pericardial space[blank_end] in between. This space is filled with pericardial fluid that reduces [blank_start]friction[blank_end]. The heart is finally wrapped in [blank_start]fibrous[blank_end] pericardium.

The right atrioventricular valve is also known as the:

During diastole, the AV valves are:

The chordae tendinae attach to the [blank_start]papillary muscles[blank_end] which attach to the [blank_start]ventricular walls[blank_end]. They allow the valves to close [blank_start]slowly and more safely[blank_end] to prevent [blank_start]wear and tear[blank_end].

Both semilunar valves are tricuspid.

During systole:

The cardiac circulation is the first organ system to receive blood from the aorta. The coronary arteries are named sensibly as the right coronary artery and the left coronary artery. The anterior interventricular artery branches from the [blank_start]left[blank_end] coronary artery. All three of these vessels join the [blank_start]circumflex[blank_end] artery on the [blank_start]posterior[blank_end] of the heart. On the [blank_start]anterior[blank_end] of the heart also reside the great cardiac vein and the small cardiac vein. The [blank_start]coronary[blank_end] sinus is the final vein which drains into the [blank_start]right[blank_end] atria directly.

Select the correct characteristics of myocardium.

The mitochondria make up what percent of myocardiac cell volume?

The sarcomeres in myocardium are irregularly branched, unlike skeletal muscle sarcomeres.

Choose the incorrect statement about intercalated discs.

The conduction pathway in the heart is nervous tissue that can be innervated by the autonomic nervous system if needed.

Electrically conductive cells make up what percent of the cells in the heart?