Stratum granulosum

Introduction: Skin is not only the largest organ on the human body, but it is also the most prominent organ that is in the integumentary system. It works in many aspects of protecting the body underneath against the outside environment. The skin has three main layers; the epidermis, dermis and the hypodermis. Each layer have different physical attributes that aid the skin in its job to protect the organism. Purpose: This lab was done to help me understand the layers of the skin and their varying

The epidermis the most superficial layer of integument. It is made of stratified squamous epithelium and has up to five layers. The needle will penetrate all stratum layers including the corneum, lucidum, granulosum, spinosum, and basale layers. The epidermis functions to hold in fluid and protect the deeper layers of tissue. Next the needle penetrates the dermis, the intermediate layer of integument. This layer is made up of connective

 In the adult, many of these differentiated cells cease to divide  Others continue to divide (e.g. cells in the stratum basale of the epidermis) 5 LIFE CYCLE OF CELLS  Cells that divide go through a series of phases: M-Phase when they are actually dividing, and interphase when they are not  Cell division comes under a complex set of controls that are

patient, blood cultures had no growth to date and the pan-cultures from the mouth, nares, eyes, and anus were non-specific. Diagnosis for SSSS is usually clinical, although it may be confirmed with skin biopsy that shows a cleavage plane in the lower stratum

Agnatha Nervous System The nervous system of sub-class Agnatha is the most primitive of all the Vertebrates. Though they do have what we would call a brain, it is extremely primitive and lacks a cerebellum, which is in charge of motor-control as well as language, attention and processing mental imagery (Neuroscience, 1997) in other Vertebrates. For the sub-class Agnatha, the cerebrum, olfactory bulb and medulla oblongata are small but present while the optic lobe is particularly weak since they

Biology 115 Semester List of Structures Chapter One Anatomy is the study of body structure and the relationship between structures Physiology is the study of how the structures of the body function Levels of Structural Organization Chemical Cell Tissue Organ Organ system Organism Homeostasis Positive feedback loop Negative feedback loop Relative Positions Superior Inferior Anterior Posterior Medial Lateral Bilateral Ipsilateral Contralateral Proximal Distal

UNIT 4: HUMAN PHYSIOLOGY CELLS AND TISSUES This is a diagram of an animal cell with all its key components labelled The structures within an animal cell are described as follows: Plasma Membrane or Cell Membrane: This is a thin membranous layer which surrounds the cell and acts as a barrier, it works to separate the contents within the cell from its external environment as well as from other cells. It 's structure is important as it provides structural

The oral mucosa is a specialized tissue lining the oral cavity and consists of the following components: (1) the masticatory mucosa, which lines the gingiva and the hard palate; (2) the specialized mucosa covering the dorsum of the tongue; and (3) the lining mucosa which covers the reminder of the oral cavity [201, 202]. The gingiva is considered an adaptation of the oral masticatory mucosa covering the alveolar bone and surrounding the cervical portions of teeth. The gingiva protects the roots of

Moisturisers and UV Protection Essay 2 Raquel Ferreira 6/26/2015 3144 Words Contents 1. Introduction 3 2. Skin and Ultraviolet Light 4 3. UVA and UVB protection 7 3.1. Types of ageing 7 3.2. Ultraviolet radiation and exposure 8 4. Sun Protection Factor (SPF) 11 5. Suncare Formulation 15 5.1. Method of Manufacturing 16 6. Suncare Ingredients 17 6.1 Day Cream Formulation SPF30 19 7. Stability and Performance Tests 21 7.1. Moisturisation 21 7.2. SPF Measurement 22 7.2.1 SPF in Vivo

epidermis. They are of importance as they produce the structural protein keratin by the process of differentiation throughout the layers of the epidermis (6). The epidermis is organised into four distinct layers - the stratum basale, stratum spinosum, stratum granulosum and the stratum corneum (SC) (Figure 2) (7). Figure 2. Cross section of the epidermis (7). The (SC), is the outermost layer of the epidermis and plays a key role in maintaining skin hydration in 3 principle ways (5): • By acting