Readers ask: What Is A Fossa Anatomy?

Where is the fossa in the body?

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.

How many Fossas are there in the human body?

The floor of the cranial cavity is divided into three distinct depressions. They are known as the anterior cranial fossa, middle cranial fossa and posterior cranial fossa. Each fossa accommodates a different part of the brain. The anterior cranial fossa is the most shallow and superior of the three cranial fossae.

What does fossa mean?

In anatomy, a fossa (/ˈfɒsə/; 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).

What is difference between Fossa and cavity?

is that cavity is a hole or hollow depression while fossa is (anatomy) a pit, groove, cavity, or depression, of greater or less depth or fossa can be a carnivorous mammal endemic to madagascar,.

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Is fossa a depression?

Fossa – A shallow depression in the bone surface. Here it may receive another articulating bone or act to support brain structures. Examples include trochlear fossa, posterior, middle, and anterior cranial fossa.

Are fossa cats?

The fossa is the largest mammalian carnivore on Madagascar and has been compared to a small cougar, as it has covergently evolved many cat -like features. Fossa (animal)

Family: Eupleridae
Genus: Cryptoprocta Bennett, 1833
Species: C. ferox
Binomial name


What does the fossa eat?

Well more than half of this carnivore’s diet consists of lemurs. It will also feed opportunistically on birds, baby bush pigs, civet cats, fish, rats, eggs, snakes, frogs, and insects. Occasionally, the fossa will raid domestic chickens, small sheep, and goats.

Where is the Pterygopalatine fossa?

The pterygopalatine fossa (PPF) is a small, clinically inaccessible, fat-filled 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.

Where is Infratemporal fossa located?

The infratemporal fossa is a complex area located at the base of the skull, deep to the masseter muscle. It is closely associated with both the temporal and pterygopalatine fossae and acts as a conduit for neurovascular structures entering and leaving the cranial cavity.

What is a fossa used for?

Predator Adaptations It is the largest carnivore and top predator native to Madagascar and is known to feed on lemurs and most other creatures it can get its claws on, from wild pigs to mice. Unlike mongooses, and more like felines, the fossa has retractable claws and fearsome catlike teeth.

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What is a Subscapular fossa?

The subscapular fossa is a landmark of the scapula. As the name implies, it is on the deep side of the scapula. The subscapular fossa of the scapula is of functional importance because it is the origin for: the subscapularis muscle (one of the four rotator cuff muscles).

How do you use fossa in a sentence?

In many cases a mass of stool may be felt in the left iliac fossa. At less than 90 degrees of abduction the deltoid muscle force creates a shear vector in the glenoid fossa. Care was taken to ensure that there was no constriction at the popliteal fossa.

Which bones contain a fossa?

The middle cranial fossa consists of three bones – the sphenoid bone and the two temporal bones.

What is skull base?

At the base of the skull is bone that supports 4 brain components—the frontal lobe, temporal lobe, brain stem, and cerebellum. The skull base offers support from the bottom of the brain. Think of it as the floor of the skull, where the brain sits. Five bones make up the skull base.

What is foramen Rotundum?

The foramen rotundum (plural: foramina rotunda) is located in the middle cranial fossa, inferomedial to the superior orbital fissure at the base of greater wing of the sphenoid bone. It transmits the maxillary branch of trigeminal nerve (V2), artery of foramen rotundum, and emissary veins.

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