The ganglion, a triangular structure 5 mm in diameter, is covered by a layer of connective tissue and mucous membrane that is 1 to. Pterygopalatine fossa an overview sciencedirect topics. He teaches all the basic medical sciences like gross anatomy. It should be noted that the lower part of the pterygoid fossa and anterior border of the pterygoid process is formed by the pyramidal process of the palatine bone. Osseous anatomy of the pterygopalatine fossa david l.
Watch free video lecture on pterygopalatine fossa by the worlds most popular medical teacher. Given its inherent complex location and connections, the. Dissection of pterygopalatine fossa anatomy of pterygopalatine fossa. The pterygopalatine fossa ppf is an obscure but important space in the deep face that needs to be evaluated very carefully in the realm of head and neck imaging, since a myriad of infective, inflammatory, and neoplastic conditions can affect it.
Benign fibrous histiocytoma of the pterygopalatine fossa with intracranial. These branches supply much of the nasal cavity, the roof of the oral cavity, and all. The sphenomaxillary fissure, bounded in front by the maxillary tuber and behind by anterior portions of the pterygoid process, affords lateral access to the pterygopalatine fossa. Each fossa is a coneshaped paired depression deep to the infratemporal fossa and posterior to the maxilla on each side of the skull, located between the pterygoid process and the maxillary tuberosity. Each fossa is a coneshaped paired depression deep to the infratemporal fossa and posterior to the maxilla on each side of the skull, located between the pterygoid process and the maxillary tuberosity close to the apex of the orbit. The pterygopalatine fossa is an important space because it communicates with the middle cranial fossa, orbit, nasal cavity, oral cavity, pharynx, foramen lacerum, and the infratemporal fossa via. Primarily, it contains the maxillary division of the trigeminal nerve. Maxillary bone forms its anterior wall the lateral surface of the palatine bone forms the medial wall the sphenoid bone particularly the pterygoid plate forms the. Pterygopalatine definition of pterygopalatine by the free. Due to its inherent complex location and connections, it can potentially act as a natural conduit for the spread of inflammatory. As endoscopic sinus surgery ess has progressed over the last 10 years, new techniques have been introduced to aid with the resection of tumors in regions which traditionally have been difficult to access.
Pterygopalatine fossa definition of pterygopalatine. Pterygopalatine ganglion medical definition merriam. Of or pertaining to the pterygoid processes and the palatine bones. Other articles where pterygopalatine ganglion is discussed. Watch the complete lecture in the members area at the pterygopalatine fossa is a pyramidal. The pterygopalatine fossa ppf is an important anatomic location of the deep portion of the face. Pterygopalatine fossa definition of pterygopalatine fossa. Bone scan and mri chest, abdomen, and brain showed no metastasis. It resides in the pterygopalatine fossa, which is located in the superior pterygomaxillary fissure, in the anterosuperior part of the infratemporal fossa medial to the zygomatic arch and the coronoid process of the mandible although it is described as being a parasympathetic. The pterygopalatine fossa ppf is a small space of the deep face the shape. Jaradeh the pterygopalatine fossa ppf represents a major pathway of spread of malignancy and infection from the head and neck into the skull base. The flow of blood to the nasal mucosa, in particular the venous plexus of the. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Anatomy of pterygopalatine fossa, infra temporal space 1. Pterygopalatine fossa neuroanatomy this is a teaser video. The pterygopalatine fossa is a depression or hollow in the human skull that is named for its location at the pterygoid process of the sphenoid bone. Study 77 temporal, infratemporal, pterygopalatine fossa flashcards from adrian k. There was a large soft tissue mass in the right pterygoid and infratemporal fossa shown in the t2 weighted mr image a, extending into the right posterior nasal choana white arrow in a, with central degenerative changes. A patient presents to you with a lesion in the greater petrosal nerves. May 26, 2016 the pterygopalatine fossa ppf is a small, clinically inaccessible, fatfilled space located in the deep face that serves as a major neurovascular crossroad between the oral cavity, nasal cavity, nasopharynx, orbit, masticator space, and the middle cranial fossa. The pterygopalatine fossa ppf is a critical neurovascular crossroad of the deep portion of the face and a common site for direct invasion and perineural spread of disease. The pterygopalatine fossa is an irregular space where neurovascular structures course through to the nasal cavity, palate, pharynx, orbit and face figure 221a and b. Mar 24, 2018 pterygopalatine fossa neuroanatomy this is a teaser video. The pterygopalatine fossa ppf is a small, clinically inaccessible, fatfilled space located in the deep face that serves as a major neurovascular crossroad between the oral cavity, nasal cavity, nasopharynx, orbit, masticator space, and the middle cranial fossa. The pterygopalatine fossa ppf is an elongated coneshaped narrow space, lying behind the maxillary sinus. Pterygopalatine fossa 1overview and topographic anatomy general information pyramidshaped fossa on the lateral aspect of the skull between the maxillas infratemporal surface and the pterygoid process of the sphenoid contains major nerves and blood vessels that supply the nasal cavity, upper jaw, hard palate, and soft palate. The pterygopalatine fossa contains the pterygopalatine ganglion.
Cn vii greater petrosal nerve pterygopalatine ganglia v2 zygomatic branch lacrimal nerve v1 lacrimal gland. Tumor involvement of the ppf has important treatment and prognostic implications. Mastering s3 and s4 learn third and fourth heart sounds. There were bilateral multiple cervical lymph nodes on mri. Pterygopalatine definition of pterygopalatine by the. Pterygopalatine ganglion radiology reference article. The pterygopalatine ganglion aka meckels ganglion, nasal ganglion, spg or sphenopalatine ganglion is a parasympathetic ganglion found in the pterygopalatine fossa. In human anatomy, the pterygopalatine fossa sphenopalatine fossa is a fossa in the skull.
Pterygopalatine synonyms, pterygopalatine pronunciation, pterygopalatine translation, english dictionary definition of pterygopalatine. Its formation enables the pterygopalatine fossa to. Although it is closely related to the pterygopalatine ganglion, it is still considered a branch of the maxillary nerve and does not synapse in the ganglion. May 11, 2020 the pterygopalatine fossa is an inverted pyramidalshaped, fatfilled space located on the lateral side of the skull, between the infratemporal fossa and the nasopharynx.
Pterygopalatine fossa gross anatomy meiosis t helper cells immunology blood supply to brain circle of willis neuroanatomy cerebrospinal fluid. It is known as a major neurovascular crossroad between the orbit, the nasal cavity, the nasopharynx, the oral cavity, the infratemporal fossa, and the cranial fossa. The pterygopalatine ganglion is one of four parasympathetic ganglia of the head and neck and largest of the peripheral parasympathetic ganglia. There is a printable worksheet available for download here so you can take the quiz with pen and paper from the quiz author. The pterygopalatine nerves or sphenopalatine branches, two in number, descend to the pterygopalatine ganglion. Through eight bony canals or foramina, this fossa communicates with the nasal and oral cavities, infratemporal fossa, orbit, pharynx, and middle cranial fossa. The neurovascular structures enter and exit the fossa through the following boundaries. Temporal, infratemporal, pterygopalatine fossa anatomy.
Solitary neurofibroma of the maxillary sinus and pterygopalatine fossa. Radiology of the pterygoid plates and pterygopalatine fossa. The ganglion, a triangular structure 5 mm in diameter, is covered by a layer of connective tissue and. In the pterygopalatine fossa the pterygopalatine ganglion is suspended from the maxillary nerve by 2 roots.
Following facial trauma, angulation or interruption of the pterygopalatine fossa and canal indicates fractures through the maxilla going as far posteriorly as the. Endoscopic resection of tumors involving the maxillary. Mr and ct anatomy and the pathology of skull base focusing on. It adjoins ahead with the rear face of the maxilla and behind with the plate of the pterygoid apophysis. Blood supply to brain circle of willis neuroanatomy. In the pterygopalatine fossa anterior to the pterygopalatine ganglion gives origin to branches that accompany branches of the maxillary nerve v2 and the pterygopalatine ganglion.
The pterygopalatine fossa ppf is a bony space located in the skull base that contains several important neurovas cular structures. A human skull contains two pterygopalatine fossaeone on the left side, and another on the right side. The maxillary branch of the trigeminal nerve cn v enters the fossa from behind, through the foramen rotundum, and the pterygoid nerve enters the fossa via the pterygoid canal. Anatomy of pterygopalatine fossa, infra temporal space. The walls of the pterygopalatine fossa are formed by. Review of osteology infratemporal space pterygopalatine fossa radiology 3. It is largely innervated by the greater petrosal nerve a branch of the facial nerve. It extended inferiorly to the right infratemporal fossa, posteriorly to the petrous bone close to the right carotid canal, inferomedially to the right parapharyngeal space.
The maxillary nerve produces the following branches. The pterygopalatine fossa is an inverted pyramidalshaped, fatfilled space located on the lateral side of the skull, between the infratemporal fossa and the nasopharynx. Boedeker cc, ridder gj, kayser g, schipper j, maier w. Watch our free medical lectures on basic medical sciences and clinical medicine by dr. Pterygopalatine fossa synonyms, pterygopalatine fossa pronunciation, pterygopalatine fossa translation, english dictionary definition of pterygopalatine fossa. Respiratory system anatomy lecture 4 2 anatomical structure and boundaries the pterygopalatine fossa is an inverted tear drop shaped space. Aug 15, 2016 pterygopalatine fossa 1overview and topographic anatomy general information pyramidshaped fossa on the lateral aspect of the skull between the maxillas infratemporal surface and the pterygoid process of the sphenoid contains major nerves and blood vessels that supply the nasal cavity, upper jaw, hard palate, and soft palate. Pterygopalatine ganglion medical definition merriamwebster. The pterygopalatine fossa ppf is a small, clinically inaccessible, fatfilled space located in the deep face that serves as a major neurovascular crossroad between the oral cavity, nasal cavity. Jun 15, 2015 anatomy of pterygopalatine fossa, infra temporal space 1. Its importance lies as the neurovascular crossroad of the nasal cavity, masticator space, orbit, oral cavity, and middle. The pterygopalatine sphenopalatine ganglion is one of four small parasympathetic ganglia found in the head. At the bottom you can see its communication with the nasal cavity through the sphenopalatine foramen and inside a vascular structure arrow. Mr and ct anatomy and the pathology of skull base focusing.
Najeeb lectures worlds most popular medical lectures. Film is a presentation of the dissection of pterygopalatine fossa with the special reference to the arterial plexus. In order to analyze each pterygopalatine fossa and canal separately, the lateral skull roentgenogram should be obtained with the head rotated 10 away from the true lateral. These branches supply much of the nasal cavity, the roof of the oral cavity, and all upper teeth.
This is an online quiz called pterygopalatine fossa. Located in the pterygopalatine fossa, posterior to the middle turbinate, the sphenopalatine i. A wingedshaped feature consisting of laminae called the medial pterygoid plate and the lateral pterygoid plate, the pterygoid process forms the fossas posterior border with its front surface. Master medical sciences with crystal clear concepts. The pterygopalatine fossa is a major distribution center for the parasympathetic innervation and vascular supply of deep facial structures. The pterygopalatine nerves or sphenopalatine branches, two in number, descend to the pterygopalatine ganglion although it is closely related to the pterygopalatine ganglion, it is still considered a branch of the maxillary nerve and does not synapse in the ganglion it is found in the pterygopalatine fossa additional images. Pterygopalatine fossa ubc neuroanatomy season 2 ep 5 duration. Najeeb lectures are the worlds most popular lectures on basic medical sciences. Our videos are being watched by millions of medical, dentistry, nursing and pharmacy students in over 100 countries. Watch the complete lecture in the members area at the pterygopalatine fossa is a pyramidal space. The anterior wall is formed by the posterior surface of the maxilla the medial wall is formed by the lateral surface of the palatine bone the posterior wall and roof are formed by parts of the sphenoid bone.
975 87 153 896 1370 1378 977 1303 1157 870 627 916 1297 101 158 282 690 921 1196 208 1075 1033 410 1162 154 1508 539 839 9 1247 69 112 1116 184 1092 694 453 1368 633 598 563 451 234 959 218