Items tagged “artery”
39 results found
Article
Aberrant internal carotid artery
Aberrant internal carotid artery is a variant of the internal carotid artery and represents a collateral pathway resulting from involution of the normal cervical portion (first embryonic segment) of the internal carotid artery 5.
Gross anatomy
There is consequent enlargement of the usually sma...
Article
Aberrant right subclavian artery
Aberrant right subclavian arteries (ARSA), also known as arteria lusoria, are among the commonest aortic arch anomalies.
Epidemiology
The estimated incidence is 0.5-2% 1.
Associations
as can be expected from the embryological development of the artery, the right recurrent laryngeal nerve is...
Article
Aorta
The aorta, the great artery, is the largest artery of the human body and carries oxygenated blood ejected from the left ventricle to the systemic circulation. It is divided into:
thoracic aorta
ascending aorta
aortic arch
descending aorta
abdominal aorta
It has branches from each section a...
Article
Aortic arch
The aortic arch represents the direct continuation of the ascending aorta and represents a key area for a review of normal variant anatomy and a wide range of pathological processes that range from congenital anomalies to traumatic injury.
Summary
origin: continuation of the ascending aorta at...
Article
Variant anatomy of the aortic arch
Variant anatomy of the aortic arch occurs when there is failure of normal aortic development. It results in a number of heterogenous anomalies of the aorta and its branch vessels.
Gross anatomy
Normally, the aorta ascends in the superior mediastinum to the level of the sternal notch before arc...
Article
Ascending aorta
The ascending aorta is the first part of the aorta and begins at the sinotubular junction (the junction of the aortic root and ascending aorta) and terminates as it exits the fibrous pericardium where it becomes the aortic arch, in the transthoracic plane (of Ludwig). It is located obliquely jus...
Article
Thoracic aorta
The thoracic aorta is the most superior division of the aorta and is divided into three sections:
ascending aorta
aortic arch
descending aorta
The thoracic aorta begins at the aortic valve, located obliquely just to the left of the midline at the level of the third intercostal space. It term...
Article
Common carotid artery
The common carotid arteries (CCA) are paired branchless arteries of the neck that supply blood to the head, face and neck. Each common carotid bifurcates into internal and external carotid arteries.
Summary
origin:
left: branch of the aortic arch
right: branch of the brachiocephalic trunk
c...
Article
Anterior cerebral artery
The anterior cerebral artery (ACA), along with the middle cerebral artery (MCA) forms at the termination of the internal carotid artery (ICA). It is the smaller of the two and arches anteromedially to pass anterior to the genu of the corpus callosum, dividing as it does so into its two major bra...
Article
Anterior communicating artery
The anterior communicating artery (often abbreviated ACom or AComm) arises from the anterior cerebral artery and acts as an anastomosis between the left and right anterior cerebral circulation. Approximately 4 mm in length, it demarcates the junction between the A1 and A2 segments of the anterio...
Article
Calcarine artery
The calcarine artery, named according to its course in the calcarine fissure, is a branch of the posterior cerebral artery, usually from the P3 segment. It may also arise from the parieto-occipital artery or posterior temporal branches. It courses deep in the fissure, giving branches both to the...
Article
Anterior inferior cerebellar artery
The anterior inferior cerebellar artery (AICA) is one of three vessels that provides arterial blood supply to the cerebellum. It has a variable origin, course and supply, with up to 40% of specimens not having an identifiable standard AICA. The amount of tissue supplied by the AICA is variable (...
Article
Uterine artery
The uterine artery is seen bilaterally and is a branch of the anterior division of the internal iliac artery.
Gross anatomy
Course
It runs medially in the pelvis, within the base of the broad ligament, to the outer surface of the uterus. From lateral to medial it has a descending, transverse ...
Article
Abdominal aorta
The abdominal aorta (plural: aortas or aortae 4) is the main blood vessel in the abdominal cavity that transmits oxygenated blood from the thoracic cavity to the organs within the abdomen and to the lower limbs.
Summary
origin: continuation of descending thoracic aorta at T12
course: descend...
Article
Arterial supply of the head and neck
The arteries of the head and neck are branches of the common carotid and subclavian arteries.
common carotid artery
carotid body
carotid bifurcation
internal carotid artery (segments)
caroticotympanic artery
persistent stapedial artery
ophthalmic artery
supraorbital artery
lacrimal arte...
Article
Anterior spinal artery
The anterior spinal artery supplies the anterior portion of the spinal cord and arises from the vertebral artery (V4, intradural segment) in the region of the medulla oblongata. The two vertebral arteries (one of which is usually bigger than the other) anastomose in the midline to form a single ...
Article
Branches of maxillary artery (mnemonic)
A mnemonic for remembering the branches of the maxillary artery is:
DAM I AM Piss Drunk But Stupid Drunk I Prefer, Must Phone Alcoholics Anonymous
Mnemonic
D: deep auricular artery
A: anterior tympanic artery
M: middle meningeal artery
I: inferior alveolar artery
A: accessory meningeal ar...
Article
Aberrant left pulmonary artery
Aberrant left pulmonary artery, also known as pulmonary sling, represents an anatomical variant characterized by the left pulmonary artery arising from the right pulmonary artery and passing above the right main bronchus and in between the trachea and esophagus to reach the left lung. It may lea...
Article
Descending aorta
The descending aorta is the continuation of the aortic arch in the posterior mediastinum.
Gross anatomy
The descending aorta commences at the level of the fourth thoracic vertebra body, on its left, in the plane of Ludwig as the continuation of the aortic arch. It descends in the posterior med...
Case
Aberrant internal carotid artery
Published
23 Mar 2013
62% complete
CT