Recurrent apthous ulcers (RAU) are painful lesions which may be round or ovoid in shape with defined borders and irregular margins, yellow or grey base covered by fibro membranous layer
.4 They can affect both keratinized and non-keratinized mucosa but mostly occurs on lips, soft palate, buccal or labial mucosa or tongue.5 The apthous ulcers are divided into three types (minor, major, herpetiform) depending upon their sizes.6 Minor ulcers make up more than 80% of all recurrent apthous ulcers.
The superficial fascia in abdomen may be divided into a superficial fatty layer and a deep membranous layer
. The fatty layer also known as fascia of Camper is continuous with the superficial fat over the rest of the body and may be extremely thick (3 inches or more in obese patients).
The superficial pouch is enclosed between a membranous layer
of fascia inferiorly (also referred to as Colle's fascia) and the perineal membrane superiorly (also referred to as the inferior fascia of the urogenital diaphragm).
Exoperidium white when young grayish off white when mature thick persistent when young peeling off upon maturity in the form of sheets firstly from apical portion then below sometimes patches can be found all over the gasterocarp can be seen attached to the basal part in mature specimens in the form of weathered thin membranous layer
. Endoperidium mouse gray when exposed smooth to rough papery sometimes covered with dust encrusted with sand particles.
It is suggested that they be replaced with subcutaneous tissue of abdomen membranous layer
, subcutaneous tissue of abdomen fatty layer and membranous layer
of perineum, respectively.
Produced by the underlying epidermal cells, the cuticle is composed of four layers (from outer to inner): epicuticle, exocuticle, endocuticle, and membranous layer
(Travis and Friberg, 1963b; Raz et al., 2002).
The subpubic space when viewed in the mid-line sagittal plane is a triangle defined inferiorly by deep penile fascia (Buck's) encasing the penile neurovascular bundle and the corpora cavernosa, superiorly by the pubic symphysis and anteriorly by the membranous layer
of the superficial fascia (Scarpa's).
The layers internal to the exocuticle consists of the calcified endocuticle, uncalcified endocuticle and finally the membranous layer
. These layers are laid down in a sequential manner after ecdysis (Aiken 1980).
In stage A, mineralization of the postecdysial cuticle (epicuticle and exocuticle) takes place; in stage B, striated endocuticle is deposited underneath the exocuticle; in stage [C.sub.3], lamellar endocuticle and in [C.sub.4], the membranous layer
From the inside out, the layers were described as a vesicular layer immediately outside the symbiont's plasma membrane; a thick homogeneous finely granular layer; and a "line-thin" dark layer, overlaid by an even thinner membranous layer
. They also reported a wide variation in cell wall structure, with some cells displaying an almost entirely homogeneous, finely granular wall and others an almost entirely vesicular wall.
Once this process is complete, a second, very thin, membranous layer
is deposited by the outer cell layer beneath the cuticle [ILLUSTRATION FOR FIGURE 24 OMITTED].
Caption: This 2017 image shows all five tennis-court-size, membranous layers
of Webb's sunshield, displayed in Northrop Grumman's clean room in Redondo Beach, California.