: a broad fossa
on the side of the skull of higher vertebrates behind the orbit that contains muscles for raising the lower jaw
and that in humans is occupied by the temporalis muscle, is separated from the orbit by the zygomatic bone
What is temporal and infratemporal fossa?
The temporal and infratemporal fossae are
interconnected spaces on the lateral side of the head
. Their boundaries are formed by bone and soft tissues. … The infratemporal fossa is a wedge-shaped space deep to the masseter muscle and the underlying ramus of the mandible.
Where can I find temporal fossa?
The temporal fossa (latin: fossa temporalis) is a depressed area on each side of the skull in the
temporal region located between the temporal lines and the zygomatic arch
. It is situated superiorly to the infratemporal fossa.
What muscle attaches to the temporal fossa?
| Temporalis muscle | The temporalis muscle; the zygomatic arch and masseter have been removed. | Details | Origin temporal lines on the parietal bone of the skull and the superior temporal surface of the sphenoid bone | Insertion coronoid process of the mandible and retromolar fossa |
|---|
What do the temporal fossa and infratemporal fossa contain?
The infratemporal fossa acts as a pathway for neurovascular structures passing to and from the cranial cavity, pterygopalatine fossa and temporal fossa. It also contains
some of the muscles of mastication
.
What nerves are in infratemporal fossa?
The anterior division contains the masseteric nerve, the anterior and posterior deep temporal, the medial and lateral pterygoid nerves and the buccal nerve. Meanwhile, the posterior division includes the auriculotemporal nerve, the lingual nerve, the inferior alveolar nerve and the
mylohyoid nerve
.
What is the clinical significance of infratemporal fossa?
The clinical significance of the infratemporal fossa involves
neoplastic and infectious processes that can either arise from this area or spread to it
. Pathology found in this region tends to spread posteriorly due to anterior, medial, and lateral bony barriers present in the infratemporal fossa.
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 the temporal muscle?
Gross anatomy
Temporalis is a broad, radiating muscle, situated
at the side of the head which arises from the whole of the temporal fossa
(except that portion of it which is formed by the zygomatic bone) and from the deep surface of the temporal fascia.
In what part of the temporal fossa is the Pterion located?
The pterion is located in the temporal fossa,
approximately 2.6 cm behind and 1.3 cm above the posterolateral margin of the frontozygomatic suture
. It is the junction between four bones: the parietal bone. the squamous part of temporal bone.
What is temporal muscle wasting?
Temple hollowing, also known as temporal atrophy or temporal wasting occurs
when the temple shrinks causing a hollowed out appearance to the temple
. When severe, it can give your head the shape of a peanut.
What causes pain in the temporalis muscle?
According to the Journal of Oral Research, pain in the temporal muscle can originate in
that muscle’s tendon
. The tendon can become inflamed due to tooth clenching, prolonged mouth opening or muscle strain. It can also be affected by bad habits like nail biting or lip chewing.
What is a fossa in anatomy?
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.
What goes through the Pterygopalatine fossa?
The inferior orbital fissure forms the superior boundary of the pterygopalatine fossa and communicates with the orbit. It is a space between the sphenoid and maxilla bones.
The zygomatic branch of the maxillary nerve and the infraorbital artery and vein
pass through the inferior orbital fissure.
Which branch of facial nerve is the content of infratemporal fossa?
Mandibular nerve which
is the third branch of the trigeminal nerve (CN V
3
), also known as the “inferior maxillary nerve” or nervus mandibularis, enters infratemporal fossa from middle cranial fossa through foramen ovale.
