Additional Notes Module 4: Circulatory Pathways Flashcards
The right ventricle pumps oxygen-depleted blood into the pulmonary trunk and right and and left pulmonary arteries, which carry it to the right and left lungs for _____
gas exchange.
_____ blood is transported by pulmonary veins to the left atrium.
Oxygen-rich
The left ventricle pumps this blood into the ____
aorta
The main regions of the ____ are the ascending aorta, aortic arch, and descending aorta, which is further divided into the thoracic and abdominal aorta.
aorta
The coronary arteries branch from the ____ aorta.
ascending
After ____ tissues in the capillaries, systemic blood is returned to the right atrium from the venous system via the superior vena cava, which drains most of the veins superior to the diaphragm, the inferior vena cava, which drains most of the veins inferior to the diaphragm, and the coronary veins via the coronary sinus.
oxygenating
The ____ carries blood to the liver for processing before it enters circulation.
hepatic portal system
portion of the aorta inferior to the aortic hiatus and superior to the common iliac arteries
Abdominal aorta
branch of the abdominal aorta; supplies blood to the adrenal (suprarenal) glands
Adrenal artery
drains the adrenal or suprarenal glands that are immediately superior to the kidneys; the right adrenal vein enters the inferior vena cava directly and the left adrenal vein enters the left renal vein
Adrenal vein
arises from the internal carotid artery; supplies the frontal lobe of the cerebrum
Anterior cerebral artery
anastomosis of the right and left internal carotid arteries; supplies blood to the brain
Anterior communicating artery
branches from the popliteal artery; supplies blood to the anterior tibial region; becomes the dorsalis pedis artery
Anterior tibial artery
forms from the dorsal venous arch; drains the area near the tibialis anterior muscle and leads to the popliteal vein
Anterior tibial vein
largest artery in the body, originating from the left ventricle and descending to the abdominal region where it bifurcates into the common iliac arteries at the level of the fourth lumbar vertebra; arteries originating from the aorta distribute blood to virtually all tissues of the body
Aorta
arc that connects the ascending aorta to the descending aorta; ends at the intervertebral disk between the fourth and fifth thoracic vertebrae
Aortic arch
opening in the diaphragm that allows passage of the thoracic aorta into the abdominal region where it becomes the abdominal aorta
Aortic hiatus
circle of willis, anastomosis located at the base of the brain that ensures continual blood supply; formed from branches of the internal carotid and vertebral arteries; supplies blood to the brain
Arterial circle
initial portion of the aorta, rising from the left ventricle for a distance of approximately 5 cm
Ascending aorta
continuation of the subclavian artery as it penetrates the body wall and enters the axillary region; supplies blood to the region near the head of the humerus (humeral circumflex arteries); the majority of the vessel continues into the brachium and becomes the brachial artery
Axillary artery
major vein in the axillary region; drains the upper limb and becomes the subclavian vein
Axillary vein
originates in the lumbar region and passes through the diaphragm into the thoracic cavity on the right side of the vertebral column; drains blood from the intercostal veins, esophageal veins, bronchial veins, and other veins draining the mediastinal region; leads to the superior vena cava
Azygos vein
formed from the fusion of the two vertebral arteries; sends branches to the cerebellum, brain stem; and the posterior cerebral arteries; the main blood supply to the brain stem
Basilar artery
superficial vein of the arm that arises from the palmar venous arches, intersects with the median cubital vein, parallels the ulnar vein, and continues into the upper arm; along with the brachial vein, it leads to the axillary vein
Basilic vein