Sphenoid part of middle cerebral artery at a glance
- Also called
- M1 segment
- What it is
- The M1 segment of the middle cerebral artery.
- Location
- It runs laterally from the internal carotid bifurcation along the sphenoid ridge and gives lenticulostriate branches before dividing at the limen insulae.
- Function
- It supplies the basal ganglia and internal capsule through the lenticulostriate arteries.
- Body system
- Cardiovascular · paired (left and right)
- FMA ID
- FMA50366 (Foundational Model of Anatomy)
Key facts
- It is also called the M1 segment.
- The middle cerebral artery is the largest terminal branch of the internal carotid artery and the most common site of embolic stroke.
Clinical relevance
Occlusion causes contralateral weakness and aphasia in the dominant hemisphere.
Structures next to the sphenoid part of middle cerebral artery
The nearest named structures in the 3D model, measured from the centre of each part:
- Amygdala · nervous
- Anterolateral central branch of middle cerebral artery · cardiovascular
- Ophthalmic nerve · nervous
- Trochlear nerve · nervous
- Putamen · nervous
- Globus pallidus · nervous
- Anterior cerebral artery · cardiovascular
- Posterior communicating artery · cardiovascular
- Frontal nerve · nervous
- Optic nerve · nervous
References
- Foundational Model of Anatomy: Sphenoid part of middle cerebral artery (FMA50366). EMBL-EBI Ontology Lookup Service.
- OpenStax. Anatomy and Physiology 2e, §20.1 Structure and Function of Blood Vessels. Rice University, 2022.
- Mitsuhashi N. et al. (2009). BodyParts3D: 3D structure database for anatomical concepts. Nucleic Acids Research 37, D782–D785. Data © The Database Center for Life Science, CC BY 4.0.
Related anatomy
Explore the whole body in the interactive 3D human anatomy model, or browse the A–Z list of human structures.