Osteology of Head & Neck - Frontal Bone скачать в хорошем качестве

Osteology of Head & Neck - Frontal Bone

Frontal bone single, flat & pneumatic bone It has two parts Squamous part Orbital part Squamous part presents two surfaces External & Internal Two margins Posterior or parietal border Supraorbital margins Supraorbital margins - Shows supraorbital notch at the junction of medial 1/3 & lateral 2/3, which transmits supraorbital vessels & nerves Medially supraorbital margins are separated by nasal notch which presents nasal spine. this notch artciculates with nasal bone, frontal process of maxilla and lacrimal bone Laterally becomes continuous with the zygomatic process of frontal bone External surface of squamous part presents superciliary arches with glabella inbetween Internal surface shows impressions of gyri & middle meningeal vessels In the median plane it presents sulcus for superior sagittal sinus the ridge of the sulcus continues down as frontal crest which ends in foramen caecum Orbital plate presents orbital & cerebral surfaces separated by ethmoidal notch - articulates with cribriform plate of ethmoid Follow me in blogspot - https://human-anatomylessons.blogspot... _________________________________________________________________________________________________________________ Visit my blogs - https://humananatomyonline.in/ Contact me @ https://t.me/humananatomylessons