The mastoid cells (also called air cells of Lenoir or mastoid cells of Lenoir) are air-filled cavities within the mastoid process of the temporal bone...

The mastoid part of the temporal bone is the posterior (back) part of the temporal bone, one of the bones of the skull. Its rough surface gives attachment...

with the mastoid cells and anteriorly with the epitympanic recess of the middle ear via the aditus to mastoid antrum (entrance to the mastoid antrum)....

is a lateral radiographic view of skull principally used for viewing mastoid cells. The central beam of X-rays passes from one side of the head and is...

the air cells of the skull behind the ear. Specifically, it is an inflammation of the mucosal lining of the mastoid antrum and mastoid air cell system...

antrum are lined by mucosa which is continuous with that lining the mastoid cells and tympanic cavity. The medial wall of the aditus features a ridge...

foramen ovale to innervate the meninges of this fossa as well as the mastoid air cells. It divides into two branches - anterior and posterior - which accompany...

innervation for the middle ear, the Eustachian tube, the parotid gland, and mastoid cells. It also carries parasympathetic fibers destined for the parotid gland...

pterosaurs. Pneumatic spaces include the paranasal sinuses and some of the mastoid cells. Postcranial pneumaticity is found largely in certain archosaur groups...

and cochlea. He was the first to point out the connection between the mastoid cells and the middle ear. His description of the lacrimal ducts in the eye...

electrochemical cell Using cell phones on aircraft; see mobile phones on aircraft Mastoid cells, also known as mastoid air cells or air cells, spaces in a...

stylomastoid foramen and supplies the tympanic cavity, the tympanic antrum and mastoid cells, and the semicircular canals. It is a branch of the posterior auricular...

A mastoidectomy is a procedure performed to remove the mastoid air cells, air bubbles in the skull, near the middle ear. This can be done as part of treatment...

function and that of its muscle. He showed the connection between the mastoid cells and the tympanic cavity, and made observations on physiologic and pathologic...

the abnormal plasma cells produce abnormal antibodies, which can cause kidney problems and overly thick blood. The plasma cells can also form a mass...

which enters the skull through the mastoid foramen and supplies the dura mater, the diploë, and the mastoid cells; this latter branch sometimes arises...

potassium and calcium ions to enter the hair cell from the endolymph that bathes its apical end. When the hair cells are deflected toward the kinocilium, depolarization...

to the mastoid air cells located in the mastoid process of the temporal bone of the skull. Inflammation which has spread to the mastoid air cells is very...

human skull demonstrate sexual dimorphism, such as the median nuchal line, mastoid processes, supraorbital margin, supraorbital ridge, and the chin. Human...

place. Lack of mastoid pneumatization by mastoid cells occurs in 82% of the cases and is rarely prevalent outside of TDO diagnosis. Mastoid pneumatization...

consisting of keratinizing squamous epithelium in the middle ear and/or mastoid process. Cholesteatomas are not cancerous as the name may suggest, but...

between the petrous and squamosal portions of the mastoid air cells, at the anatomic level of the mastoid antrum. Along with the middle ear ossicles, it...

Skull base surgery Study of diseases of the outer ear, middle ear and mastoid, and inner ear, and surrounding structures (such as the facial nerve and...

ear,' is fluid accumulation that can occur in the middle ear and mastoid air cells due to negative pressure produced by dysfunction of the Eustachian...

dedicated to ear disorders. Schwartze's operation—the opening of the mastoid cells with a hammer and chisel in disease of the middle ear. Dorland's Medical...

arterial supply to the facial nerve (CN VII), tympanic cavity, mastoid air cells of the mastoid antrum, and the semicircular canals. It issues small branches...

the future auditory tube (pharyngotympanic Eustachian tube), middle ear, mastoid antrum, and inner layer of the tympanic membrane. Derivatives of this pouch...

enveloped by a tightly adherent matrix (grade III) with exposure of the mastoid air cells with or without facial nerve involvement. The diagnosis of keratosis...

(or horizontal) segment (from geniculate ganglion to pyramidal eminence) mastoid (or vertical) segment (from pyramidal eminence to stylomastoid foramen)...

zygomatic bone. Posteroinferior to the squamous is the mastoid part. Fused with the squamous and mastoid parts and between the sphenoid and occipital bones...