Lecture 9 Flashcards
(20 cards)
Distinguish the origins of the left and right subclavian veins
Left subclavian is a direct branch from the aortic arch
Right subclavian is a branch from the brachiocephalic artery
Name the location and branches of part 1 of the subclavian artery
medial to the anterior scalene muscle
Internal thoracic (mammary) A.
Vertebral A.
Thyrocervical arterial trunk
Name the location and branches of part 2 of the subclavian artery
posterior to the anterior scalene muscle
Costocervial trunk (supreme intercostal and Deep cervical are it’s branches)
Name the location and branches of part 3 of the subclavian artery
lateral to the anterior scalene muscle
Typically does not have branches
What is the course and destination of the vertebral artery?
It passes through transverse foramina 6-1 and the foramen magnum
Unites with opposite vertebral artery to form the basilar artery(runs below the brain)
What is the nerve that accompanies the transverse cervical artery?
CN IX (9)
What is the direct continuation of the axillary artery? when does the axillary artery begin?
brachial artery ; when the subclavian artery passes under the first rib
What branch(es) come off of part 1 of the axillary artery? how is part one defined?
the superior thoracic artery
superior to the pectoralis minor
What branch(es) come off of part 2 of the axillary artery? how is part two defined?
The throacoacromial artery (trunk)
Lateral thoracic artery
part 2: deep to the pectoralis minor
What branch(es) come off of part 3 of the axillary artery?how is part three defined?
posterior circumflex humeral artery
Anterior circumflex humeral artery
Part 3: inferior to the pectoralis minor
describe how the axillary artery is divided into parts1-3
part1: superior to the pectoralis minor
Part 2: deep the the pectoralis minor
Part 3: inferior to the pectoralis minor
What are the 2 branches of the subscapular artery?
the throacodorsal branch and the circumflex scapular branch
What nerve runs with the thoracodorsal artery?
the thoracodorsal nerve
Delineate the anatomical relationship of the deep brachial artery to the humerus.
The deep brachial artery wraps around the posterior surface of the humerus and has an ascending branch to the posterior circumflex humeral artery
The deep brachial artery has a _____ _____ artery that supplies the ______ bone.
nutrient humeral ; humeral
what is the major branch of the ulnar artery?
the common interosseous artery
What are the 2 branches of the common interosseous artery?
The anterior and posterior interosseous arteries that run on either side of the interosseous membrane in the antebrachium
Describe the blood return flow from the hand back to the subclavian vein.
Begins in the dorsal venous arch (from digits)
cephalic vein (drains the lateral side of the dorsal arch) and basilic vein (drains medial side of dorsal venous arch)
Axillary (union of basilic vein and venae comitantes) to subclavian (axillary once it passes under the clavicle) which forms one of the 2 brachiocephalic veins that become the vena cava
Identify the anatomical position and clinical significance of the median cubital vein.
It lies superficial to the bicipital aponeurosis and serves as a useful venipuncture site.
Identifiy the tributaries of the axillary veins
basilic vein and venae comitantes