Questions and Answers
What is the path of blood flow from the left ventricle?
Ascending aorta → Aortic arch → Axillary artery
Which of the following vessels branches off from the aortic arch?
All of the above
What is the result of the brachiocephalic trunk splitting?
Right subclavian artery and right common carotid artery
What is the continuation of the axillary artery?
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Which artery gives off the subscapular artery?
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What is formed by the anastomosis of the dorsal digital arteries and the proper palmar digital arteries?
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What is the purpose of the anastomosis between the palmar metacarpal arteries and the common palmar digital arteries?
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What is the branch of the brachial artery that gives off the radial artery?
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What is the result of the communication between the radial and ulnar arteries?
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What is the branch of the axillary artery that gives off the posterior circumflex humeral artery?
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Study Notes
Blood Flow Through the Upper Limb
Left Ventricle to Aortic Arch
- Blood flows from the left ventricle into the ascending aorta
- The ascending aorta travels upwards and arches, forming the aortic arch
Aortic Arch and Branches
- Three main vessels branch off from the aortic arch:
- Brachiocephalic trunk (right)
- Left common carotid artery
- Left subclavian artery
Brachiocephalic Trunk and Branches
- The brachiocephalic trunk splits into:
- Right subclavian artery
- Right common carotid artery
Right Subclavian Artery and Branches
- The right subclavian artery gives off:
- Thyroid cervical branch
- Vertebral branch
- Internal thoracic branch
- Continues as the axillary artery
Axillary Artery and Branches
- The axillary artery gives off:
- Subscapular artery
- Posterior circumflex humeral artery
- Anterior circumflex humeral artery
- Continues as the brachial artery
Brachial Artery and Branches
- The brachial artery gives off:
- Deep brachial artery
- Radial artery
- Ulnar artery
Radial and Ulnar Arteries
- The radial and ulnar arteries communicate with each other, forming:
- Dorsal carpal arch
- Deep palmar arch
- Superficial palmar arch
Dorsal Carpal Arch and Branches
- The dorsal carpal arch gives off:
- Dorsal metacarpal arteries
- Dorsal digital arteries
Deep and Superficial Palmar Arches
- The deep palmar arch gives off:
- Palmar metacarpal arteries
- The superficial palmar arch gives off:
- Common palmar digital arteries
- The palmar metacarpal arteries anastomose with the common palmar digital arteries
Proper Palmar Digital Arteries and Anastomosis
- The common palmar digital arteries branch into:
- Proper palmar digital arteries
- Anastomosis occurs between the dorsal digital arteries and the proper palmar digital arteries, forming the oblique into capitulo arteries
Blood Flow Through the Upper Limb
From Left Ventricle to Aortic Arch
- Blood flows from the left ventricle into the ascending aorta
- The ascending aorta arches, forming the aortic arch
Aortic Arch and Its Branches
- The aortic arch gives off three main vessels:
- Brachiocephalic trunk (right)
- Left common carotid artery
- Left subclavian artery
Brachiocephalic Trunk and Its Branches
- The brachiocephalic trunk splits into:
- Right subclavian artery
- Right common carotid artery
Right Subclavian Artery and Its Branches
- The right subclavian artery gives off:
- Thyroid cervical branch
- Vertebral branch
- Internal thoracic branch
- Continues as the axillary artery
Axillary Artery and Its Branches
- The axillary artery gives off:
- Subscapular artery
- Posterior circumflex humeral artery
- Anterior circumflex humeral artery
- Continues as the brachial artery
Brachial Artery and Its Branches
- The brachial artery gives off:
- Deep brachial artery
- Radial artery
- Ulnar artery
Radial and Ulnar Arteries
- The radial and ulnar arteries communicate with each other, forming:
- Dorsal carpal arch
- Deep palmar arch
- Superficial palmar arch
Dorsal Carpal Arch and Its Branches
- The dorsal carpal arch gives off:
- Dorsal metacarpal arteries
- Dorsal digital arteries
Deep and Superficial Palmar Arches
- The deep palmar arch gives off:
- Palmar metacarpal arteries
- The superficial palmar arch gives off:
- Common palmar digital arteries
- The palmar metacarpal arteries anastomose with the common palmar digital arteries
Proper Palmar Digital Arteries and Anastomosis
- The common palmar digital arteries branch into:
- Proper palmar digital arteries
- Anastomosis occurs between the dorsal digital arteries and the proper palmar digital arteries, forming the oblique into capitulo arteries
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