Fossa Anatomy Definition

Fox the mental foramen lies immediately anterior or anteroventral to the fossa. The adductor muscles of the jaw in some primitive reptiles richard c.

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Fossa a concavity in a surface especially an anatomical depression pit.

Fossa anatomy definition. The ridge extends anteriorly and curves slightly in a dorsal direction and meets the meckelian fossa. Plural fossae ˈfɒsiː or ˈfɒsaɪ. A sulcus is an elongated valley or depression in the surface of a tooth formed by the inclines of adjacent cusps or ridges.

From the latin fossa ditch or trench is a depression or hollow usually in a bone such as the hypophyseal fossa the depression in the sphenoid bone. A slender long tailed carnivorous mammal cryptoprocta ferox of the family eupleridae of madagascar that has retractile claws usually reddish brown or sometimes black short thick fur and anal scent glands. As an example a central sulcus is a major linear depression that traverses the occlusal surface of a posterior tooth from mesial triangular fossa to distal triangular fossa.

The fossa is bounded by the anterior and posterior lacrimal crests coming from the maxilla frontal process and lacrimal bone respectively with no definite boundary above. What is a fossa in dental anatomy. Fossa anatomy ta a02000034 in anatomy a fossa ˈfɒsə.

The fossa evolved on the catless island of madagascar where it became the ecological equivalent of a cat. The fossa is located behind the zygomatic process of the frontal bone in the anterior and lateral part of the orbital roof. Fossa for the lacrimal sac a vertical groove some 5 mm deep and about 14 mm high formed by the frontal process of the maxilla and lacrimal bones and which contains the lacrimal sac.

Glenoid cavity glenoid fossa the concavity in the head of the scapula that receives the head of the humerus to form the shoulder joint.

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