Epithelium Essays

There are two different types of epithelial tissue these are simple epithelium or stratified epithelium. Simple epithelium is only one cell thick whereas stratified epithelium is two or more cells thick. Simple epithelium can be separated into 5 different types due to their shape and function. Squamous epithelium: Look like thin flat plates and are used to line the mouth, heart, lungs and blood vessels. Simple cuboidal epithelium: are square or cuboidal in shape and are found in glands

Diabetes has been affecting humans and animals worldwide for several years. With no initial cure, numerous new treatments have been created through thorough research and diagnoses by doctors. What is diabetes? To begin with, diabetes is a disease causing the body to make little to no insulin (insulin is a hormone produced in the pancreas used to regulate glucose levels in the blood). Diabetes consists of three types: Type 1, Type 2, and gestational diabetes. Type 1 diabetes is when one can make

Pinna The external ear comprises of pinna and external auditory canal. The elastic fibrocartilage forms the body of the pinna and is covered by skin which is attached loosely on its medial surface. This cartilage is avascular and derives its nutrition from the perichondrium. A unique pattern on the lateral surface of the pinna makes it characteristic for each individual and comprises of helix, antihelix, triangular fossa, scaphoid fossa, concha, tragus, antitragus, intertragic notch and lobule. The

These reactions could lead to polyp formation and may be triggered by allergy, infection or inflammatory mediators. Alteration in the mucous glands is another factor that may lead to the development of nasal polyps through a break in the epithelium followed by bulging of the submucosa through to polyp development. Another theory is that neurovascular changes may contribute to polyp formation although less work has been conducted in this area. Lack of blood flow into the sinus region

1.3. Oral mucosa 1.3.1. Anatomy and histology The oral mucosa is the mucous membrane lining the inside of the mouth and consists of stratified squamous epithelium termed oral epithelium and an underlying connective tissue termed lamina propria (Nanci and Elsevier, 2013). At the lips the oral mucosa is continuous with the skin, and at pharynx the oral mucosa is continuous with the moist mucosa lining the rest of the gut. thus the oral mucosa is

serosa, muscolaris, submucosa and mucosa; this last one consists of three different sublayers: muscolaris mucosa, lamina propria and epithelium. The lamina propria forms the supporting layer of the epithelium and is populated by extracellular matrix producing cells, neurons, smooth muscle fibres and immune cells. The epithelial layer is made up of a single-layered epithelium consist of four cell types: enterocytes, goblet cells, Paneth cells and enteroendocrine cells. The enterocytes are the most abundant

dermis and the epidermis are derived from a different embryologic tissue type. The subcutaneous tissue resides immediately beneath the two primary layers of skin. The outer layer of skin (the epidermis) consists of stratified squamous keratinizing epithelium and is derived from ectoderm (Fig. 1). The epidermis contains no blood vessel sand is nourished entirely from tissue fluid emanating from the inner (deeper) vascularized skin tissue known as the dermis. The dermis is derived from mesoderm and contains

protect. The skin is the protective covering of the body that prevents the invasion of microorganisms. The skin consists of two layers the epidermis and the dermis. The first layer of the skin is the epidermis which contains stratified squamous epithelium. The epidermis consists of the stratum corneum and the stratum germinativum. The stratum corneum is the outer layer of skin cells that

In addition, due to abnormal adhesion of the epithelium to the underlying basement membrane, persons with diabetes experience delayed re-epithelization of the cornea. Iris Neovascularization of the iris (Rubeosis iridis) Neovascularization of the iris (NVI) is a serious complication characterized

toughest organ that the human body has, and it has three coating layers. One is the epidermis, the next is the dermis, and the last layer is the subcutaneous tissue known as the hypodermis.   A. Epidermis - This outer layer has stratified squamous epithelium to keratinize the skin, and to make it solid and strong. The epidermis does not receive or give blood, but it has up to five strata. They are the stratum basale, spinosum granulosum, lucidum, and corneum. Multiple epidermises deliver keratin and

1.1 Physiological Background: 1.1.1 Organization of the testis: The human testes are two organs of ellipsoids shape with diameters of about 2.5 × 4 cm(Foresta et Al., 2012).Engulfed by a capsule (tunica albuginea) of strong connective tissue. Thin septula testis divide the parenchyma of the testis into about 370 conical lobules(Tomova et al., 2010)The lobules consist of the seminiferous tubules and intertubular tissue, containing groups of endocrine Leydig cells and additional cellular elements

Skin is the largest organ of the human body. Skin is part of the integumentary system, the physiological functions include protection with chemical, physical and biological barriers, aids in homeostasis regulation, sense receptors, maintenance, blood storage, as well as excretion by means of sweat. The anatomical structure of the skin can be divided into two main parts, the epidermis and dermis. The third part of the epidermis is the hypodermis, it is also known as the superficial fascia, where it

The structure of intertebral disc is complex. Nucleus pulposus has a well organized matrix which is laid down by relatively few cells. Nucleus pulposus is a gelatinous structure present in the centre and is contained in the periphery by annulus which is collagenous and cartilaginous, and two cartilaginous endplates cephalad and caudad. Collagen fibers from annulus continue and attach to the surrounding tissues, tying into the vertebral body along its rim, cartilaginous endplates superiorly and

The purpose of this essay is to describe structure and function of the tendon, present a discussion on the process of pathophysiological Tendinopathy and provide a review of known intervention used to manage or treat both acute and chronic tendinopathies. Tendons act to serve a connective tissue linking muscle to bony attachment points and in the case of the intermediate tendons that will act to link a muscle belly to another (Benjamin and Kaiser, et al). Tendons are a uniaxial and assist in force

Fibroblast The fibroblast is the large cell type of the dermis. These cells are responcible for the formation of procollagen and elastic fibers. Procollagen is terminally cleaved by proteolytic enzymes into collagen which aggregates and turned into cross-linked. These tightly cross-linked collagen fibers allow tensile strength and resistance to shear and other mechanical forces.(9,10) Collagen makes up 70% of the weight of the dermis, primarily Type I (85% of the total collagen) and Type III (15%

Adipose is a loose connective tissue that makes up the spaces in between our organs and tissues which provides structural and metabolic support. The main role of adipose is to store energy in the form of lipids. However it also serves as cushions and insulates the body. Adipose tissue – more particularly, the brown adipose tissue – was first identified by Swiss naturalist Conrad Gessner in 1551. When Conrad Gessner first discovered the tissue he described it as it was “neither fat, nor flesh – but

PHIL 125: The Good life Tony Elliott Argumentative Paper Word Count: 1519 Section 1 Introduction In Section 2, I will present Thomson’s argument that abortion is impermissible. In Section 3, I will raise an objection to that argument. In Section 4, I will explain how Thomson could respond to my objection of their theory. In Section 5, I will examine two ways my objection could be defended from this response. Section 1 Thomson’s Argument Abortion has become of the most controversial things in history

Transplant Surgery: Skin 1. a) Skin is flat and covers our whole body. There are 3 layers of skin – the top section is called the epidermis, the middle is the dermis and the bottom is the hypodermis. The epidermis is the layer we see. This contains cells that give skin their colour, help the immune system and give it strength. The Dermis provides strength, flexibility and support. The hypodermis contains the start of sweat glands and hair. The fat distribution gives people their shape. Skin protects

What are tonsils? The tonsils are tissue masses that are found at the point where the mouth and throat meet. There is one tonsil on each side of the throat. The tonsils are part of the human immune system. The immune system is what helps to fight off germs that can cause a variety of illnesses. They are there to process germs and help the body recognize different types of germs so that they can be fought off. Will my child 's immune system be weaker if the tonsils are removed? The immune system

The Skin Structure and Function: The skin is the largest organ. It covers the whole body and is water-resistant. The skin consists of two layers; the Epidermis and Dermis (under which lies the subcutaneous or fatty layer). The epidermis is the layer of skin that we can see. It varies in thickness. The thickest layer is on the soles of the feet and the palms of the hands. The thinnest layer is on the eyelids and nipples. The cells on the surface are constantly coming off (shedding) this is known as