Cardiovascular and Lymphatic System Quiz

The outflow portion of the right ventricle leading to the pulmonary artery.

The vessel that carries deoxygenated blood from the right ventricle to the lungs.

Receives oxygenated blood from pulmonary veins and pumps it into the left ventricle.

Carry oxygenated blood from the lungs to the left atrium.

Valve that controls blood flow from the right ventricle to the pulmonary artery.

Valve between the left atrium and left ventricle.

Valve between the right atrium and right ventricle.

Valve that controls blood flow from the left ventricle to the aorta.

Carries blood from the lower body to the right atrium.

Receives deoxygenated blood from the body (incl. IVC).

Partition separating the right and left atria.

Drains blood from the heart muscle.

Opening for blood flow from the right atrium to the right ventricle.

Partition separating the right and left ventricles.

Fetal remnant; a depression in the atrial septum.

The largest lymphatic vessel in the body, it collects lymph from the lower limbs, pelvic cavity, abdominal cavity, left side of the thorax, left side of the head and neck, and left arm. It then empties this lymph into the bloodstream.

An elongated lymph sac located below the diaphragm, near the first two lumbar vertebrae and on the right side of the aorta. It receives lymph from the intestines, lumbar region, and lower thorax. It eventually merges with the thoracic duct.

Drains lymph from the right side of the head and neck, upper limb, and thorax. It is formed by the confluence of the right jugular, subclavian, and broncho-mediastinal lymph trunks.

The thoracic duct drains lymph from the following areas:

• Lower Limbs
• Pelvic Cavity
• Abdominal Cavity
• Left Side of Thorax
• Left Side of Head and Neck
• Left Arm

The following structures drain into the cisterna chyli:

• Intestinal Trunk
• Right and Left Lumbar Trunks
• Small lymph vessels from the lower thorax

The Hemiazygos vein lies to the left of the vertebrae and descends to join the Azygous vein at the level of the 7th Thoracic Vertebra.

It's formed from the veins of the 4th to 8th intercostal spaces (ICS) and occasionally by the left bronchial veins.

The Hemiazygos vein often joins the Hemiazygos accessory veins and their shared trunk drains into the Azygous vein.

It plays a crucial role in the spread of tumors because it collects lymphatic drainage from various body parts below the neck and upper limbs.

It lies behind the right border of the inferior vena cava.

It lies close to the left border of the aorta.

It is a major vein that collects blood from the chest, back, and abdomen.

It's a major vessel in the root of the neck that drains into the Azygous vein.

The primary pacemaker of the heart, initiating and regulating heartbeats. It's located in the superior posterolateral wall of the right atrium, near the opening of the superior vena cava.

The AV node receives the electrical signal from the SA node and delays it slightly before sending it to the ventricles. It's located at the base of the right atrium.

The bundle of His carries the electrical signal from the AV node to the ventricles. It's the sole connection between the atria and ventricles for the electrical impulse.

A groove marking the junction between the right atrium and the sinus venosus. This is a landmark for the location of the SA node.

A structure that forms the inferior boundary of the right atrioventricular orifice, also a landmark for the AV node.

Supplies blood primarily to the SA node, providing about 60% of its blood flow.

Supplies blood to the SA node, providing about 40% of its blood flow.

This is a fibrous connective tissue structure that provides support and anchors the heart valves. The Bundle of His pierces this structure.

It leads to a bifid lower aspect of the lower trunk, where the right and left lymphatic trunks fail to fuse.

The lower thoracic duct is replaced by a plexus of lymphatic vessels and forms a single duct higher in the mediastinum.

A rare variation where two complete thoracic ducts are present, indicating a failure of the lymphatic system to fully merge.

This is a variation where the thoracic duct empties into the azygos vein instead of the subclavian vein or internal jugular vein.

An enlarged lymph node in the left supraclavicular region, often a sign of metastatic cancer.

A palpable mass in the left supraclavicular region caused by an enlarged Virchow's Node, often associated with gastric cancer.

Cancer on the left side of the body can spread to the left supraclavicular lymph node via the thoracic duct, resulting in a noticeable enlargement.

It's a key area for identifying potential cancer spread from the left side of the body, particularly in the case of gastric cancer.