Heart - Aorta (carotid artery) Flashcards
What are the 4 sections of the aorta?
ascending aorta
aortic arch
thoracic (descending aorta)
abdominal aorta
Where does the ascending aorta arise from?
left ventricle
How does the aortic arch bend?
It arches superiorly, posteriorly and to the left before moving inferiorly.
What 3 major branches arise form the aortic arch?
- brachiocephalic trunk
- left common carotid artery
- left subclavian artery
What is the largest branches of the aortic arch?
brachiocephalic trunk
What is the order of the aortic arch branches?
brachiocephalic trunk
left common carotid artery
left subclavian artery
What does the brachiocephalic artery break into?
the right common carotid and right subclavian arteries
What do the right common carotid and right subclavian arteries supply?
the right side of the head and neck, and the right upper limb.
What does the left common carotid artery supply?
Supplies the left side of the head and neck.
What does the left subclavian artery supply?
Supplies the left upper limb.
What are the 3 branches of the common carotid artery?
What are the branches of the subclavian artery?
- VIT
- C
- D
What are the branches of the external carotid artery?
Name the branches of the external carotid branch (A-H)
Where does the infraorbital artery go through and what does it supply blood to?
These arteries supply blood to the maxillary incisors and cuspid teeth and to the maxillary sinuses.
What artery is pointed to here?
superficial temporal artery
Where do the superficial temporal artery branches supply?
Arises anterior to external auditory meatus, then travels deep to parotid gland.
Many branches to scalp.
Branches to face - transverse facial artery (above parotid duct).
What external carotid artery branch is shown here?
facial artery
What structures does the facial artery supply?
supply the upper an lower lips
nose, and corner of eye
What artery is pointed to here?
internal carotid artery
How to differentiate the internal and external carotid artery
The ICA is located posterior and lateral to the ECA. The ICA is slightly larger than the ECA
How does the internal carotid artery enter the cranium?
carotid canal then passes through the cavernous sinus
Where is the cavernous sinus?
How does the middle meningeal artery travel into the cranial cavity?
via the foramen spinosum
How does the vertebral artery pass into the cranial cavity?
foramen magnum
What can occur as a consequence of fracture t the skull?
epidural hematoma
A collection of blood in the space between the skull and dura mater.
Caused by tearing of meningeal artery (fracture of skull at pterion).
Where does the external carotid artery end?
the parotid gland
What happens to the external carotid artery at the parotid gland?
divides into the superficial temporal artery and the maxillary artery
What are the 6 branches of the external carotid artery before tit bifurcates to the maxillary and superficial temporal artery?
Superior thyroid artery
Lingual artery
Facial artery
Ascending pharyngeal artery
Occipital artery
Posterior auricular artery
What are the 3 major branches to note of the external carotid artery?
maxillary
superficial temporal
facial
What artery of the external carotid artery, supplies the deep structures of the face?
maxillary artery
What arteries of the external carotid artery, supply the superficial structures of the face?
superficial temporal
facial
Name the external carotid arteries, green, yellow and red
What carotid arteries, provide blood to the scalp?
along with internal carotid artery branches - supra-orbital and supratrochlear
What is the meningeal artery a branch of?
the maxillary artery
What does the meningeal artery supply?
skull and the dura mater
What is the pterion?
the region where the frontal, parietal, temporal, and sphenoid bones join
Does the internal carotid artery supply the neck?
no
What does the internal carotid artery supply?
brain
forehead
eyes
Name arteries A-E
A - brachiocephallic
B - left left carotid
C - subclavian
D - right carotid
E - right subclavian
