The dermis is composed of the papillary layer and the ___________. | epidermis | | cutaneous plexus | | hypodermis | | -reticular layerThe reticular and papillary layers together compose the dermis. | What structure is responsible for the strength of attachment between the epidermis and dermis? | stratum corneum | | basement membrane | | -epidermal ridge | | stratum lucidumThe deeper the epidermal ridge‚ the stronger the attachment. | The type of cells that form the strata
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11. Identify the four basic types of tissues and the functions of each tissue type. There are four different types of tissue. They are; nerve‚ epithelial‚ connective‚ and muscle. The nerve tissue is made up of neurons that receive and transmit electrical impulses‚ this is their function. There are several different types of epithelial tissue. First there is simple squamous epithelium tissue. This is a single layer of cells that is in the lining of blood vessels‚ the lining of the pulmonary alveoli
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my brother injuries. Marilyn: What do you have in mind to ask me. Eva: What is the structure of skin cells Marilyn: Your skin is the largest known organ in your body. This substance is waterproof and flexible it has three layers to it. They all work together to keep all your organs and tissues inside your body it also keeps infection‚ viruses and bacteria out of your inside of your body. In your skin cells there are little thing to tell the cell what to do. There is a nucleus is the control center
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human skin contains the epidermis‚ which is the farthest layer of skin‚ it provides a waterproof barrier and creates our skin tone. The dermis‚ beneath the epidermis‚ contains tough connective tissue‚ hair follicles‚ and sweat glands. The deeper subcutaneous tissue‚ which is the hypodermis‚ is made of fat and connective tissue. In the the epidermis most of the cells are keratinocytes‚ they come from the deepest layer of the epidermis and with time makes its way to the surface of the epidermis. Keratinocytes
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organ of the integumentary system is the skin. Name three structure that are associated structures in the integumentary system. Answer: Hair‚ nails & various glands 2. Which one of the three layers (epidermis‚ dermis‚ subcutaneous tissue) is not part of the integument? Answer: Subcutaneous tissue 3. The dermis has two main layers. Which one of these is the most superficial? Answer: Papillary layer 4. What is the most common connective tissue in the dermis? Answer: Collagenous fibers 5. The
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Assessment Grade and Criteria Achieved Y/N Resubmission Achieved Y/N Resubmission Achieved Y/N P1 describe the organisation of the eukaryotic cell in terms of the functions of the organelles Y/N P2 describe the four different tissue types Y/N M1 use diagrams or micrographs to compare and contrast the four tissue types Y/N D1 explain the relationship between cells‚ tissues‚ organs and organ systems in the organisation of the human body Y/N Student Declaration I declare
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Date______________ Period____ Tissues Lab Directions: This lab is broken down into three sections: Epithelial Tissue‚ Connective Tissue‚ and Muscle & Nerve Tissue. For each section‚ read the background and answer any questions before you come to class‚ then in class sketch the specimens listed under each sketch circle. For your sketches‚ include the total magnification under which you viewed the specimen and be very detailed in your sketch. Epithelial Tissue Background Functions of Epithelium
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Chapter 4 Study Guide Bio 169 • Individual body cells are specialized -Each type performs specific functions that help maintain homeostasis • Tissues are groups of cells that are similar in structure and perform a common function • Histology – study of tissues PRIMARY TISSUE TYPES: 1) Epithelial Tissue (or epithelium) is a sheet of cells that covers a body surface or lines a body cavity Forms boundaries Occurs in the body as covering and lining epithelium and glandular epithelium
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Classification of Tissues Tissue Structure and Function—General Review A group of cells similar in structure and function. 1. Define tissue. _______________________________________________________________________________________ __________________________________________________________________________________________________ 2. Use the key choices to identify the major tissue types described below. Key: a. b c c‚ d a b d c b a a a d connective tissue b. epithelium c. muscle d. nervous tissue 1. lines
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Epithelial tissue protects your body from moisture loss‚ bacteria‚ and internal injury. There are two kinds of epithelial tissues: Covering and lining epithelium covers or lines almost all of your internal and external body surfaces; for example‚ the outermost layer of your skin and other organs‚ and the internal surface lining of your lymph vessels and digestive tract. Glandular epithelium secretes hormones or other products such as stomach acid‚ sweat‚ saliva‚ and milk. Connective tissue generally
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