Fossa Anatomy Definition

The fossa evolved on the catless island of madagascar where it became the ecological equivalent of a cat. 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.

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Fox the mental foramen lies immediately anterior or anteroventral to the fossa.

Fossa anatomy definition. A sulcus is an elongated valley or depression in the surface of a tooth formed by the inclines of adjacent cusps or ridges. Plural fossae ˈfɒsiː or ˈfɒsaɪ. 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.

The adductor muscles of the jaw in some primitive reptiles richard c. What is a fossa in dental anatomy. The fossa is located behind the zygomatic process of the frontal bone in the anterior and lateral part of the orbital roof.

Fossa a concavity in a surface especially an anatomical depression pit. 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. The ridge extends anteriorly and curves slightly in a dorsal direction and meets the meckelian 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. Fossa anatomy ta a02000034 in anatomy a fossa ˈfɒsə. Glenoid cavity glenoid fossa the concavity in the head of the scapula that receives the head of the humerus to form the shoulder joint.

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.

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