Posterior meningeal artery
Posterior Meningeal Artery
The Posterior Meningeal Artery (PMA) (/pɒˈstɪəriər mɛnɪnˈdʒiːəl ˈɑːrtəri/), is a small artery that supplies blood to the meninges and parts of the inner ear.
Etymology
The term "Posterior Meningeal Artery" is derived from the Latin words 'posterior' meaning 'behind', 'meninx' meaning 'membrane', and 'arteria' meaning 'windpipe, artery'.
Anatomy
The Posterior Meningeal Artery typically arises from the ascending pharyngeal artery, but can also originate from the occipital artery or the vertebral artery. It ascends to the jugular foramen, passing through to reach the posterior cranial fossa where it supplies the meninges and parts of the inner ear.
Related Terms
- Meninges: The three membranes that envelop the brain and spinal cord.
- Ascending Pharyngeal Artery: An artery that supplies parts of the pharynx and prevertebral muscles.
- Occipital Artery: An artery that supplies the posterior scalp.
- Vertebral Artery: One of the major arteries of the neck.
- Jugular Foramen: A large aperture in the base of the skull.
- Posterior Cranial Fossa: The deepest portion of the cranial cavity.
External links
- Medical encyclopedia article on Posterior meningeal artery
- Wikipedia's article - Posterior meningeal artery
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