ARTERIAL EVALUATION CH1 Flashcards
What are the 3 branches of the aortic arch?
- The innominate/brachiocephalic artery. Divides into the RT CCA and RT SCA.
- LT CCA which terminates at the bifurcation of LT ICA and LT ECA.
- LT SCA which terminates at the thoracic outlet.
What is the position of the Subclavian arteries?
- Arches above the clavicle, in front of the apex of the lung and behind the scalenus anterior muscle.
- Runs laterally and downward to the outer border of the first rib, becoming the axillary artery as it travels along the shoulder to the upper arm.
What are the most important branches of the Subclavian artery?
-Vertebral
-Thyrocervical
-Internal Thoracic (Mammary)
-Costocervical
The Axillary artery becomes the brachial after giving off what 7 branches?
- Superior A
-Thoracic A
-Thoracoarcromial A
-Lateral Thoracic A
-Subscapular A
-Ant/Post Humeral A
-Thoracodorsal A
What is the position of the Brachial artery?
- Courses down the upper arm usually ending about 1 cm distal to the bend of the elbow.
- After it divides into the radial and ulnar arteries.
What is the triangular region located anterior to the elbow called?
Antecubital fossa
What is the position of the radial artery?
- Originates from the brachial A.
- Travels down the lateral side of the forearm into the hand.
- Branches in the hand to form the superficial palmar arch.
- Terminates in the deep palmar arch by joining the deep ulnar artery.
What is the position of the ulnar artery?
- Originates from the brachial A.
- Travels down the medial side of the forearm into the hand.
- Gives off a deep palmar branch.
- Terminates in the superficial palmar arch.
What artery is the predominant source of blood to the hand?
Ulnar artery
What does the superficial palmar artery consist of?
- The distal portion of the Ulnar artery as it continues into the hand and a branch of the radial artery.
What does the deep palmar (volar) arch consist of?
- The deep palmar branch of the ulnar artery and the distal portion of the radial artery.
Where do the digital arteries arise from?
- Arise from the palmar arches, extend into the fingers, then divide into lateral and medial branches.
Where does the ascending aorta arise from?
- From the left ventricle.
- Has two beaches, the LT and RT coronary arteries.
The aortic arch is formed by what?
The ascending aorta
What is the position of the descending thoracic aorta?
it extends downward from the aortic arch to just above the diaphragm.