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The middle stitch is a vertical mattress the others simple interrupted stitches. The vertical mattress stitch, often called vertical Donati stitch (named after the Italian surgeon Mario Donati), [1] is a suture type used to close skin wounds. The advantages of the vertical mattress suture are that it provides closure for both deep and ...
The trilobite body is divided into three major sections: a cephalon (head section) with eyes, mouthparts and sensory organs such as antennae; a thorax of multiple segments which are similar to each other; and a pygidium, or tail section. In many species, the cephalon had sutures running from back to front round the outside edges of the eyes.
The ecdysial suture is longitudinally placed on the vertex, separating the epicranial halves of the head to the left and right sides. Depending on the insect, the suture may come in different shapes: like either a Y, U or V. Those diverging lines that make up the ecdysial suture are called the frontal or frontogenal sutures.
A surgical suture, also known as a stitch or stitches, is a medical device used to hold body tissues together and approximate wound edges after an injury or surgery. Application generally involves using a needle with an attached length of thread. There are numerous types of suture which differ by needle shape and size as well as thread material ...
Greek ὄπῐσθεν (ópisthen), behind, at the back opisthotonus-opsy: examination or inspection Greek ὄψῐς (ópsis), view biopsy, autopsy: optic(o)-of or relating to chemical properties of the eye: Middle French optique; from Greek ὀπτῐκός (optikós); cognate with Latin oculus, relating to the eye opticochemical, biopsy: or(o)-
In the living tuatara and some lizards, as well as in many fossil tetrapods, a small opening, the parietal foramen (also called the pineal foramen), is present between the two parietal bones at the midline of the skull. This opening is the location of the parietal eye (also called the pineal or third eye), which is much smaller than the two ...
“We have two cats, two partners, called Mark, and two eyes,” Parry-Wingfield told the outlet, adding that together they "are either an unstoppable force or a walking disaster.”
It always follows the inside of the visual surface of the eye. In Ptychoparia, the part of this suture behind the eye cuts to the posterior margin just to the inside of the genal spine (or the suture is gonatoparian), and the part in front of the eye diverges from the midline. There is a spine in the back corners of the cephalon (or genal spine ...