Squamous epithelium may be seen by the student similarly scraping the interior of his own cheek.
When the cells are more or less flattened, they form squamous epithelium (Figure VI.
By noting whether the structure is that of squamous or of cylindrical epithelioma it is often possible to determine whether a tumor at the cardiac orifice originates in the oesophagus or in the stomach.
Adherent to the gums and the tongue is a yellowish tenacious mucus, composed of squamous epithelia, fat-globules, bacteria, and the usual debris of disorganization.
The projections are usually opaque, deeper in color than the surrounding congested mucous membrane, and velvety from loss of squamous epithelium.
When the necrosed area is superficial, such as the squamous portion of the temporal bone or the cortex of the mastoid process, it should be removed.
The part usually affected is the lower margin of the squamous portion of the temporal bone and the tympanic ring.
In other cases there may be actual necrosis of the bone, as a rule involving the lower margin of the squamousportion of the temporal bone (see p.
To do this it may be necessary to chisel away the tegmen tympani outwards until the squamous portion of the temporal bone is reached, after which a pair of bone forceps may be used until a sufficient opening is obtained.
If the abscess be situated in the middle fossa above the tegmen tympani, the bone is best removed by chiselling upwards until the lower margin of the squamous portion of the temporal bone is reached.
In the infant, also, the petro-squamous and the squamo-mastoid suture are still patent.
They may change into the moist papule and squamous papule.
How would you exclude psoriasis in a suspected case of eczema (squamous eczema)?
This tendency is usually a part of an erythematous or squamous eczema, the fissuring constituting the most conspicuous and troublesome symptom.
Chiefly with squamous eczema and the papulo-squamous syphiloderm; and on the scalp, also with seborrh[oe]a.
In what respects does the papulo-squamous syphiloderm differ from psoriasis?
How is pityriasis rosea distinguished from ringworm, psoriasis and the squamous syphiloderm?
How are you to distinguish the papulo-squamous syphiloderm from psoriasis?
The scales of the squamous syphilide are usually dirty gray in color and more or less scanty; the patches are coppery in hue, and usually several or more characteristic scaleless, infiltrated papules are to be found.
How is psoriasis to be distinguished from squamous eczema?
In both varieties the disease is usually seated about the ankle or the foot, developing from the papular or squamous type.
Defn: The squamouspart of the temporal bone, or a bone correspondending to it, under Temporal.
The truesquamous disorders are Lepra vulgaris and Psoriasis vulgaris.
The remarkable preference of this location of œsophageal cancer for the male sex has already been referred to; it affects the same type of male patients as are subject to squamous epithelioma in other parts of the body.
Microscopically the cyst was lined with squamousepithelium and the wall contained rudimentary salivary-gland tissue.
When near the skin they are of the nature of dermoid cysts, being lined with squamous epithelium and filled with sebaceous material.
The part of the tract near the tongue is lined by squamous epithelium; the lower part by columnar epithelium, which, below the level of the hyoid, is usually ciliated.
The commonest form of primary cancer is the branchial carcinoma, a squamous epithelioma which originates in connection with the second visceral cleft (Fig.
It may take the form of squamous epithelioma or of medullary cancer, and may originate in the tonsil, in the groove between the tonsil and the tongue, or in the soft palate.
The squamous or pavement epithelium consists of very thin, flattened scales, usually with a small nucleus in the center.
Vertical height above a line joining the deepest notches in the squamous border of the parietals.
It includes almost the whole of the frontal bone, both parietals, a small part of the squamous and the upper-third of the occipital.
Of the right temporal, the parts in the immediate neighbourhood of the auditory foramen, the mastoid process, and a considerable portion of the squamouselement of the temporal are well preserved (Figure 22).
In making this estimation, the water is supposed to stand on a level with the orbital plate of the frontal, with the deepest notch in the squamous margin of the parietal, and with the superior semicircular ridges of the occipital.
The abnormal suture shows but little serration, and the articulation of the two divisions of the parietal bone is squamous in character, the lower portion overlapping the upper.
Both pieces are joined to the parietal bone by a squamous suture (Fig.
In acute and subacute cases the urine is acid and contains a variable amount of pus, with many epithelial cells from the bladder--chiefly large round, pyriform, and rounded squamous cells.
Rather striking is the tendency of old squamous cells to retain the red stain, and fragments of such cells may mislead the unwary.
Squamous or pavement cells are large flat cells, each with a small, distinct, round or oval nucleus (Fig.
Squamous cells come from the anal orifice; otherwise the form of the cells gives no clue to the location of the lesion.
Fragment forming the main part of the floor of Gutter Fracture in the squamous portion of the temporal bone.
The entry led down to a typical gutter fracture in the squamous portion of the temporal bone, at the point of junction of the vertical with the horizontal part; the floor of the gutter had been displaced inwards as a single fragment (fig.
The wall of the cyst is composed of a connective-tissue capsule lined by stratified squamous epithelium.
Squamous epithelioma and melanotic cancer are the forms met with.
There are several types of primary cancer of the skin, the most important being squamous epithelioma, rodent cancer, and melanotic cancer.
The differentiation from squamous epithelioma is of considerable importance, as the latter affection spreads more rapidly, involves the lymph glands early, and is much more dangerous to life.
The squamous epithelial cancer or epithelioma originates from a surface covered bysquamous epithelium, such as the skin, or the mucous membrane of the mouth, gullet, or larynx.
The cancer cells retain the characters of squamous epithelium, and, being confined within the lymph spaces of the sub-epithelial connective tissue, become compressed and undergo a horny change.
Of the right temporal, the parts in the immediate neighbourhood of the auditory foramen, the mastoid process, and a considerable portion of the squamous element of the temporal are well preserved (Fig.
To these should be added kyphocephaly (lump head), due to synostosis of the posterior part of the squamous portion of the temporal and the parietal bones with Wormian bones in the lambdoid fissure.
Klinocephaly (saddle-shaped head) is due to synostosis of the parietal bones with the greater wings of the sphenoid, or of the parietal with the squamous portion of the temporal bone.
The sub-arachnoid space is subdivided into numerous freely-communicating loculi by bundles of delicate areolar tissue, which bundles are invested, as Key and Retzius have shown, by a layer of squamous endothelium.
The inner surface has the appearance of a serous membrane, and when examined microscopically is seen to consist of a layer of squamous endothelial cells.
Vertical height above a line joining the deepest notches in the squamous border of the parietals 70 = 2.
Here the surface cells are very much flattened (squamous epithelium), those of the middle layer are polyhedral and those of the lowest layer are cubical or columnar.
A mesothelial cell is very flattened, thus resembling a squamous epithelial cell.
Squamous Epithelial Cells from the Mucous Membrane of the Mouth.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "squamous" in a variety of sentences. We hope that you will now be able to make sentences using this word.
