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Questions and Answers
Which artery is the largest in the human body?
Which artery is the largest in the human body?
The radial artery carries deoxygenated blood from the heart to the tissues.
The radial artery carries deoxygenated blood from the heart to the tissues.
False
What is the name given to the smaller branches of arteries?
What is the name given to the smaller branches of arteries?
Arterioles
The three branches of the arch of aorta include the brachiocephalic artery, _____ carotid artery, and _____ subclavian artery.
The three branches of the arch of aorta include the brachiocephalic artery, _____ carotid artery, and _____ subclavian artery.
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Match the following arteries with their primary function or location:
Match the following arteries with their primary function or location:
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What do the internal carotid arteries primarily supply?
What do the internal carotid arteries primarily supply?
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The abdominal aorta terminates into three common iliac arteries.
The abdominal aorta terminates into three common iliac arteries.
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Name the main artery that supplies blood to the lower limb.
Name the main artery that supplies blood to the lower limb.
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The __________ is a circulatory anastomosis at the base of the brain that supplies blood to the brain and surrounding structures.
The __________ is a circulatory anastomosis at the base of the brain that supplies blood to the brain and surrounding structures.
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Match the following arteries with their functions:
Match the following arteries with their functions:
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Study Notes
Arteries
- Arteries transport oxygen-rich blood from the heart to the body's tissues.
- The largest artery is the aorta, which branches into smaller arteries throughout the body.
- Arterioles and capillaries are smaller branches of arteries.
- Pulmonary arteries carry deoxygenated blood from the heart to the lungs.
Aorta
- The ascending aorta branches into coronary arteries.
- The arch of the aorta has three branches:
- Right brachiocephalic artery (divides into right common carotid and right subclavian arteries)
- Left common carotid artery
- Left subclavian artery
- The descending thoracic aorta runs from the arch of the aorta to the diaphragm.
- The abdominal aorta passes through the abdominal cavity and terminates into two common iliac arteries.
Subclavian Artery
- Supplies the thoracic wall and upper limb.
- Changes name based on region as it travels through the upper limb.
Arteries of the Upper Limb
- Axillary artery: Continuation of the subclavian artery at the outer border of the first rib.
- Brachial artery: Continuation of the axillary artery, ending at the elbow joint and dividing into radial and ulnar arteries.
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Radial and ulnar arteries: Supply the forearm and hand.
- Radial artery descends through the lateral side of the forearm.
- Ulnar artery descends through the medial side of the forearm.
- They anastomose to form the superficial palmar arch and deep palmar arches.
Radial Pulse
- Can be felt against the lower end of the radius.
Carotid Arteries
- Each common carotid artery divides into internal and external carotid arteries.
- External carotid artery: Supplies branches to the head and neck.
- Internal carotid artery: Supplies branches to the eyes and brain.
Cerebral Arteries
- Anterior cerebral artery: Branch of the internal carotid artery.
- Middle cerebral artery: Branch of the internal carotid artery.
- Posterior cerebral artery: Branch of the vertebrobasilar system (originates from the subclavian artery).
- Circle of Willis (cerebral arterial circle): A circulatory anastomosis at the base of the brain that supplies blood to the brain and surrounding structures.
Abdominal Aorta
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Branches:
- Three single anterior visceral branches (celiac, superior mesenteric, inferior mesenteric arteries, supplying the gastrointestinal tract)
- Many paired branches (e.g., suprarenal, renal)
Iliac Arteries
- Located in the region of the ilium in the pelvis.
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Common iliac artery bifurcates into:
- External iliac artery: Continues as the femoral artery.
- Internal iliac artery: Supplies the pelvic organs.
Arteries of the Lower Limb
- Femoral artery: Main artery of the lower limb, descends in the thigh and continues as the popliteal artery.
- Popliteal artery: Located behind the knee, divides into anterior and posterior tibial arteries.
Dorsalis Pedis Artery
- Continuation of the anterior tibial artery in front of the ankle joint.
- Its pulse can be palpated on the dorsal surface of the foot, often examined by physicians to assess patent peripheral circulation.
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Description
Explore the vital role of arteries in the circulatory system with this quiz. Learn about the major arteries, including the aorta, pulmonary arteries, and the branches that supply blood to the upper limb. Test your knowledge on the structure and function of these essential blood vessels.
