Neck - Part 2 Flashcards
Where does the left CCA originate from?
The aortic arch
Where does the right CCA originate from?
Innominate (brachiocephalic) artery
Where does the CCA lie compared to the IJV and thyroid lobe?
- IJV = medial
2. Thyroid lobe = lateral
Where does the CCA course?
Deep to the sternocleidomastoid muscles
What does the CCA bifurcate into?
Internal and external carotid arteries
What does the ECA supply? (3)
- Neck
- Scalp
- Face
Where does the ECA lie compared to the ICA?
Anterior and medial
What is a distinguishing factor of the ECA?
Multiple extracranial branches
What is the first branch off of the ECA?
Superior thyroid artery
What does the ICA supply? (2)
- Eyes
2. Brain
Where does the ICA lie compared to the ECA?
Posterior and lateral
Where does the ICA terminate?
At the circle of Willis
What is the first branch of the ICA?
Ophthalmic artery
What does the ICA not have?
Extracranial branches
- but it has internal ones
Where do the vertebral arteries arise from?
The first segment of the subclavian artery
What do the vertebral arteries provide blood to?
The posterior brain
Where do the vertebral arteries lie in the neck?
Posterior
Where do the vertebral arteries ascend through?
The transverse processes of the spine
What do the left and right vertebral arteries join to form?
Basilar artery
- at the base of the skull
Where does the basilar artery terminate?
In the posterior aspect of the circle of Willis
What do vertebral arteries contain?
Multiple extracranial branches
What does the IVJ receive? (3)
Major portion of blood from the…
- Brain
- Neck
- Superficial parts of the face
Where does the IJV course?
Lateral to the carotid artery
What does the IJV unite with? What does it form?
- Unite with the subclavian vein
2. Forming the innominate (brachiocephalic) vein
What makes up the SVC?
Innominate (brachiocephalic) vein
What do the EJV receive? (2)
Receive blood from the…
- Exterior cranium
- Deep parts of the face
Where are the EJV located?
Superficial fascia of the lateral neck
What do the EJV empty into?
Subclavian vein
What do the vertebral veins receive?
Receive blood from the posterior brain
Where do the vertebral veins empty into?
The brachiocephalic vein
Where are are the vertebral veins located?
Anterior to the corresponding vertebral artery
What is the largest endocrine gland?
Thyroid
What connects the 2 thyroid lobes together?
Isthmus
Which thyroid lobe is typically larger?
The right one
