Pterion is the junction of the greater wing of the sphenoid, squamous temporal, frontal, and parietal bones in the lateral wall of the skull. Fracture of the pterion can be life-threatening because it overlies the anterior branches of the middle meningeal vessels, which lie in grooves on the internal aspect of the lateral wall of the calvaria. The pterion is two fingers' breadth superior to the zygomatic arch and a thumb's breadth posterior to the frontal process of the zygomatic bone. A hard blow to the side of the head may fracture the thin bones forming the pterion, producing a rupture of the anterior branch of the middle meningeal artery crossing the pterion. Middle meningeal artery is a branch of the Maxillary artery; branch of the external carotid artery. As blood is pumped against the gravity, pressure inside the external carotid artery is high. Therefore in a fracture arteries can bleed profusely. But the middle meningeal veins are more superficial. According to experienced neurosurgeons veins are easily damaged due to above reason. The resulting hematoma exerts pressure on the underlying cerebral cortex. An untreated middle meningeal artery hemorrhage may cause death in a few hours. Therefore it is wise to mention that it damages to the middle meningeal vessels.
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The middle meningeal artery supplies most of the blood for the dura mater, though the meningeal branches of the posterior and anterior ethmoidal artery also contribute.
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An epidural hematoma occurs when a blood clot forms underneath the skull, but on top of the dura, the tough covering that surrounds the brain. They usually come from a tear in an artery that runs just under the skull called the middle meningeal artery. They are usually associated with a skull fracture.
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The rough, thick, and leathery meningeal layer is the dura mater.
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Use ICD-9 code 348.0for meningeal cyst.
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There are several functions of the temporal bone including covering the brain (including important structures; eg the middle meningeal artery), in addition to housing the hearing apparatus, providing muscle attachement sites and contributing to the TMJ (temporal madibular joint)
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The Optic Nerve (one of the Cranial Nerves) is enclosed by three sheaths that are continuous with the three layers of cranial meninges (dura, arachnoid, and pia). The central artery and vein of the retina pass through these meningeal sheaths and are included in the distal part of the optic nerve.
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the dura
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The foramen magnum transmits the spinal cord, accessory nerves, vertebral arteries, and the anterior and posterior spinal arteries. The superior orbital fissure transmits oculomotor, trochlear, ophthalmic division of trigeminal, abducens, and ophthalmic veins. The optic foramen transmits the optic nerve and ophthalmic artery. And the jugular foramen transmits the glossopharyngeal, vagus, and accessory nerves, the internal jugular vein, and the sigmoid sinus.
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its the dura mater, the layer is called the periosteal layer.
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meningeal branch
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What is function of facial artery What is function of facial artery What is function of facial artery What is function of facial artery
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The axillary artery is a major artery of the upper limb. It continues from the subclavian artery.
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The vessel after the axillary artery, before it branches into the radial artery and ulnar artery is called the brachial artery.
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External Carotid Artery,which is a branch of Brachiocephalic Artery give 8 major branches 1,Superior Thyroid Artery 2,Ascending Pharyngeal Artery 3,Lingual Artery 4,Facial Artery 5,Occipital Artery 6,Posterior Auricular Artery 7,Maxillary Artery 8,Superficial Temporal Artery Superficial Temporal Artery is the last branch and it ends by anastomosing withSupraorbital branch of Internal carotid artery
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An aneurysm is a sac-like widening of an artery, usually due to weak artery walls. The carotid artery is an artery in the neck going to the head. An aneurysm in a carotid artery is known as a carotid artery aneurysm.
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(From Wikipedia)
The internal carotid artery passes superiorly from the carotid canal in the base of the skull, emerging via that part of the foramen lacerum which is not occluded by cartilage.
The artery of pterygoid canal, the nerve of pterygoid canal and some venous drainage also pass through the foramen lacerum.
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The main artery that feeds the legs would be the femoral artery.
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Splenic Artery, Left Gastric Artery, and Hepatic Artery
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Do you mean the "Celiac artery"? if so, its an artery that originates from the abdominal aorta just below the diaphragm and branches into the left gastric artery and the common hepatic artery and the splenic artery.
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Pia Mater
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Gastric Artery - esophageal branch and hepatic
Common Hepatic Artery - Proper hepatic artery, Right Gastric artery and Gastroduodenal artery
Splenic Artery - Dorsal pancreatic, short gastric and Left Gastro-omental
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From the aortic arch, blood flows through the left subclavian artery, then into the axillary artery, followed by the brachial artery. From the brachial artery, blood then reaches the radial artery in the forearm, supplying the distal part of the arm and hand with oxygenated blood.
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Posterior Division:
Iliolumbar artery, lateral sacral artery, superior gluteal artery.
Anterior Division:
inferior gluteal artery, middle rectal artery, uterine artery, obturator artery, inferior vesical artery, superior vesical artery, obliterated umbilical artery, internal pudendal artery
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There is actually no such artery as the cephalic artery. There is the brachiocephalic artery which comes out of the aortic arch, and also a cephalic vein.
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Femoral artery. Which is continuation of external iliac artery. So it is the one and same artery.
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This artery is called the Aorta. It is the largest artery in the body.
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It is the superficial femoral artery that is the longest in the human body.
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The radial artery is the one that is used to take a pulse at the wrist.
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That is the Volar Radial Carpal artery, or just Radial artery, for short.
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Brachial Artery
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It's a vein. The artery going to your head is the carotid artery.
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