Review of DSA Material Flashcards
How do you differentiate between the different parts of the Subclavian Artery?
Which two arteries will supply blood to the brain?
- Vertebral (Posterior Brain - 20%): Terminates as the Basilar Arteries
- Internal Carotid (Anterior Brain - 80%): Terminates as Anterior Cerebral and Middle Cerebral Arteries
Describe the process of “auto-regulation” that is performed by the Circle of Willis.
Shunting of blood from one region of circulation to another may result in hyperperfusion and cerebral edema
Describe the phenomena of Subclavian Steal Syndrome.
Causes: OBSTRUCTION of the subclavian artery PROXIMAL to the vertebral artery
- EPISODIC increase in peripheral circulatory demand in the associated with the extremity
- You will have shunting of blood from the VERTEBRO-BASILAR circulation into the DISTAL SUBCLAVIAN artery which will result in VERTEBRAL-BASILAR INSUFFICIENCY (VBI)
Signs and Symptoms: Dizziness, Cranial Nerve Dysfuction, Paralysis (All four limbs), Loss of Consciousness
What is the bony landmark for the bifurcation of the Common Carotid Artery?
Hyoid Bone
What are the terminal branches of the External Carotid Artery?
- Maxillary Artery
- Superficial Temporal Artery
What is the terminal branch of the Maxillary Artery?
Sphenopalatine Artery
The Retromandibular vein is important because it has a relationship with which structure?
Facial Nerve
Why would you remove all of the veins in a radical neck surgery?
Lymph Nodes are Adherent to the VEINS!!!
All of the Lymph Nodes in the Neck are going to drain into which Main Node?
Deep Cervical Lymph Node
What is the first branch of the external carotid artery?
Superior Thyroid Artery
Which gland does the facial artery go through?
Submandibular Gland
The vertebral artery is going to pass through which structure and which cervical vertebrae?
Transverse Foramina
C6-C1 (***NO C7)
Which structure is embedded in the prevertebral fascia just posterior to teh common carotid artery?
Sympathetic Chain