Head & Neck Anatomy for Mbbs 1st Yr - Dr Abhijeet

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Head and Neck -
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1. Osteology of maxilla
2. Osteology of frontal bone
3. Osteology of zygomatic bone
Osteology of the Maxilla -
The maxilla is a key bone in the facial skeleton, forming the upper jaw and contributing to the orbits, nasal cavity, and the roof of the mouth. It houses the upper teeth in the alveolar process and is involved in functions such as chewing and speech. The maxilla also contains the maxillary sinus, one of the paranasal sinuses, which helps lighten the skull and warm the air we breathe. Key features include the infraorbital foramen, through which the infraorbital nerve and vessels pass, and the palatine process, which forms the anterior three-quarters of the hard palate. 🦷🦴
Osteology of the Frontal Bone -
The frontal bone forms the forehead, the roofs of the orbits, and the majority of the anterior cranial fossa. It houses the frontal sinuses, which are involved in voice resonance and reduction of skull weight. The bone articulates with the parietal bones at the coronal suture, with the nasal bones at the nasofrontal suture, and with the zygomatic bones to form the lateral aspects of the orbits. Key landmarks include the supraorbital margin, supraorbital foramen (or notch), and the glabella, which is the smooth area between the eyebrows. 🌟💀
Osteology of the Zygomatic Bone -
The zygomatic bone, also known as the cheekbone, forms the prominence of the cheeks and part of the lateral wall and floor of the orbit. It articulates with the maxilla, temporal bone, frontal bone, and sphenoid bone. The zygomatic bone is crucial for the structural integrity of the face and is involved in the formation of the zygomatic arch, which is important for muscle attachment involved in mastication. Key features include the zygomaticofacial foramen, which transmits the zygomaticofacial nerve, and the temporal process, which extends posteriorly to articulate with the zygomatic process of the temporal bone. 💀✨
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