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In mammalian anatomy, the cribriform plate (Latin for lit. sieve -shaped), horizontal lamina or lamina cribrosa is part of the ethmoid bone. It is received into the ethmoidal notch of the frontal bone and roofs in the nasal cavities. It supports the olfactory bulb, and is perforated by olfactory foramina for the passage of the olfactory nerves ...
Olfactory foramina. Ethmoid bone from above. Base of the skull. Upper surface. The olfactory foramina, also known as the cribriform foramina (cribr- is "a sieve" in Greek), is the grouping of holes located on the cribriform plate. The cribriform plate forms the roof of the nasal cavity, and the olfactory foramina are in the two depressions ...
The anterior cranial fossa is a depression in the floor of the cranial base which houses the projecting frontal lobes of the brain. It is formed by the orbital plates of the frontal, the cribriform plate of the ethmoid, and the small wings and front part of the body of the sphenoid; it is limited behind by the posterior borders of the small wings of the sphenoid and by the anterior margin of ...
Base of skull. Base of the skull, exterior or outer surface. Showing various muscle attachments. The base of skull, also known as the cranial base or the cranial floor, is the most inferior area of the skull. It is composed of the endocranium and the lower parts of the calvaria.
Intervertebral foramen, foramina formed between vertebrae. Lesser sciatic foramen, an opening between the pelvis and the posterior thigh. Obturator foramen, the opening created by the ischium and pubis bones of the pelvis. Vertebral foramen, the foramen formed by the anterior segment (the body), and the posterior part, the vertebral arch.
Located in the cribriform plate of the ethmoid bone. Animal research indicates that the terminal nerve is involved in the detection of pheromones. [2] I Olfactory: Purely sensory Telencephalon: Located in the olfactory foramina in the cribriform plate of the ethmoid bone. Transmits the sense of smell from the nasal cavity. [3] II Optic: Sensory
A cranial fossa is formed by the floor of the cranial cavity. There are three distinct cranial fossae: [1] Anterior cranial fossa (fossa cranii anterior), housing the projecting frontal lobes of the brain [2] Middle cranial fossa (fossa cranii media), separated from the posterior fossa by the clivus and the petrous crest housing the temporal ...
Anatomical terms of bone. [edit on Wikidata] The ethmoid bone (/ ˈɛθmɔɪd /; [1][2] from Ancient Greek: ἡθμός, romanized: hēthmós, lit. 'sieve') is an unpaired bone in the skull that separates the nasal cavity from the brain. It is located at the roof of the nose, between the two orbits. The cubical bone is lightweight due to a ...