Accessory structures of the skin include hair, nails, sweat glands, and sebaceous glands. Chapter 6 skin and its appendages questions and study. This worksheet is an easy and fun supplementary activity to your science. Although most of the commercialized skin substitutes can promote wound healing well, it remains a challenge to regenerate skin with complete appendages. The dermis houses the skin appendages sweat glands and hairs, many. A worksheet is also included that allows students to identify and label each structure. Hairs and nails are modified epidermal cells composed of keratin. It helps our body control its temperature, protect us from uv radiation and other environmental hazards. Common integument refers to skin and subcutaneous tissue, hair, nails, and breast. In this scientific quiz, well be taking a look at an oftenunderstated biological study the integumentary system, whereby the skin and its associated appendages act to protect our bodies from harm. Appendages of the skin skin appendages are formed from the epidermis but reside in the dermis. Hair follicles are found in most regions of skin, except the glans penisclitoris, labia minora, lip and palmssoles. Varies in thickness at different parts 5 mm on middle of upper back divided into three distinct layers epidermis dermis hypode. Beneath the dermis lies a loose layer of skin rich in fat and areolar tissue called the.
Briefly describe how changes in skin color may be used as clinical signs of certain disease states. In this lab, we will only study hair, sweat glands and sebaceous glands. Kolarsick, bs, maria ann kolarsick, msn, arnpc, and carolyn goodwin, aprnbc, fnp chapter 1 introduction the skin is the largest organ of the body, accounting for about 15% of the total adult body weight. The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage, such as loss of water or abrasion from outside. You can check your knowledge of this condition and its causes by working through the quiz and worksheet. Modified skin cells responsible for prying, scrapping, and pickup things. Figure 43 is a diagram of a crosssectional view of a hair in its follicle. Anatomy and physiology of skin and appendages emotion master.
Appendages of the skin sweat and its function composition mostly water salts and vitamin c some metabolic waste urea and uric acid fatty acids and proteins apocrine only function helps rid body of excess heat excretes waste products acidic nature inhibits bacteria growth odor is from associated bacteria appendages of the skin hair produced. The layer where the skin is thick, such as the palms of the hands and the soles of the feet, is 10 12. Learn more about the skin and the science behind pimples ew. Appendages of the skin worksheet accessory structures. Though skin may seem like nothing more than the source of things like zits and oil to your preteen, skin actually has many important jobs to do. Sebum keeps the skin and hair soft and contains bacteriakilling chemicals figure 4. Nail and the enamel of your teeth also derive from the epidermis. Arthropods jointed appendages are a group of invertebrate animals in the kingdom. Skin appendages or adnexa are skinassociated structures that serve a particular function including sensation, contractility, lubrication and heat loss. First we did a little activity to investigate fingerprints, and then time was given to work on the video project. Nail and the enamel of your teeth also derive from the epidermis in this lab, we. The skin is the site of numerous biochemical processes as it carries out a myriad of functions.
These structures embryologically originate from the epidermis and can. Introduction the integumentary system includes the skin and its appendages such as hair, nails, and glands that produce oil or sweat. Morris, joechemistry bio ii unit 3 integumentary system. Identify the two portions of the follicle wall by placing the correct name of the sheath at the end of the appropriate leader line. A characteristic feature of the human skin is the apparent lack of hair pili on most of the body surface. In humans, some of the more common skin appendages are hairs sensation, heat loss, filter for breathing, protection, arrector pilli smooth muscles that pull hairs straight, sebaceous glands secrete sebum onto hair follicle, which oils. Melanin brown to black pigment responsible for skin and hair color. The skin integumentary system basic structure of the skin 1. Describe the factors that normally contribute to skin color.
Sebaceous glands produce an oily product sebum, usually connected by a duct into a hair follicle. The ratio of the outside body surface area to the inner body volume is smaller 17. Which of the following happens to epidermal cells as they move up to the surface of the skin. These video worksheets are perfect for use as an alternative to lecture for an introduction to the layers of skin, skin appendages hair, nails, oil and sweat glands and discussion of epidermis and dermis layers and cells, and are great for use as an alternative to lecture, with early finishers and for filling time on half days, or as subwork. The purpose of this powerpoint is to summarize the important information and concepts about skin appendages. Large animals find it easier to keep warm than small ones because. The skin and its appendages make up the integumentary system. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Introduction to anatomy and physiology student site lesson 3. Gross structure of skin and underlying tissues, of the skin appendages and of the skin lines. This powerpoint on skin appendages is geared to any high school biology or anatomy classgrade. Skin thickness varies 16 mm depending on location and use.
In this chapter, the types and functions of skin in different parts of the body are described first, followed by the microstructure of the epidermis and dermis, and the appendages of skin including the pilosebaceous units and the sweat glands and nails. Organs such as hair, sweat glands and sebaceous glands that develop from the embryonic epidermis are labelled appendages of the skin or epidermal derivatives. Integumentary system the skin is no more separate from the brain than the surface of a lake is separate from its. Epidermis and dermis hair, nails and skin glands are modified epidermal structures hypodermis is fatty connective tissue under the skin. These structures embryologically originate from the epidermis and can extend down through the dermis into the hypodermis. The integumentary system sinoe medical association. The skin consists of two layers, the epidermis and the dermis. Jul 21, 2016 skin layers diagram for kids anatomy of the tooth com knee structure answers to basic structure of the skin worksheet 1. Sebaceous glands are exocrine glands that produce sebum oil to lubricate the skin, prevent brittle hair and kill bacteria on the surface of the skin. Epithelial membranes are subdivided into cutaneous, mucous and serous.
Skin appendages or adnexa are skin associated structures that serve a particular function including sensation, contractility, lubrication and heat loss. In addition, the sensors in our skin keep us protected by making us aware of conditions that could harm us. Most sebaceous glands have ducts that empty into hair follicles, while others open directly onto the skin. Appendages of skin definition of appendages of skin by. The two basic tissues of which the skin is composed are dense irregular. The two basic tissues of which the skin is composed are dense connective tissue, which makes up the dermis, and which forms the epidermis. Skeletal system worksheet pdf 50 skeletal system worksheet pdf, skeleton label worksheet with answer key. Your pictures and words will be of different kinds of human body organs. Chapter 4 skin and body membranes packet answers key. Aug 12, 2016 burns and skin pathology the structure and function of nerves worksheet structure and function of nerves the respiratory system upper and lower respiratory system the pituitary gland hormones and diseases the heart circulation, chambers, vessels and valves skin appendages glands, receptors, nails, and hair worksheet gland identification muscle.
May 11, 2020 the largest organ in the body is the skin. Introduction our largest organ accounts for 12% of body weightit weighs twice as much as your brain. Worksheets rubric, finger prints worksheet, extra material pages 69 homework burns and skin cancer worksheet. What can you tell us in this multiplechoice examination. Different amounts depends on genes and exposure to light. Intro to membranes body membranes cover surfaces, line body cavities, and form protective sheets around organs. The anatomy and physiology of animalsskin worksheet.
These appendages are found in the epidermis and dermis and include. List the major layers of each and describe the functions of each layer. Appendages of the skin worksheet from anatomy basic anat at olentangy liberty high school. Chapter 6 skin and its appendages learn with flashcards, games, and more for free. The skin appendages, such as hair follicles, sweat glands, and sebaceous glands, make the skin function well in touch, temperature sensation, excretion, perspiration, and thermoregulation. Burns and skin pathology the structure and function of nerves worksheet structure and function of nerves the respiratory system upper and lower respiratory system the pituitary gland hormones and diseases the heart circulation, chambers, vessels and valves skin appendages glands, receptors, nails, and hair worksheet gland identification muscle. Different amounts of melanin accounts for the different hues of skin color shades of brown. Complete this figure by following the directions in steps. It is found below the skin and is not technically part of integumentary system. Name the tissue types composing the epidermis and dermis. Answer the following questions based on the diagram and your notes. Skin layers diagram for kids anatomy of the tooth com knee structure answers to basic structure of the skin worksheet 1. The educational and instructional content aligns with the state of virginia standards of learning for first grade science.
The two basic tissues of which the skin is composed are dense irregular connective tissue, which makes up the dermis, and 1, which. Chapter 06 lecture outline palm beach state college. It performs many vital functions, including protection against external physical. Which of the following are considered to be appendages of the skin. Complete the following statements by writing the appropriate word or phrase on the correspondingly numbered blank. The skin is an organ that performs a vital function for our body. Below the skin is a layer of areolaradipose tissue called the hypodermis or subcutaneous layer. Overview of the skin as an organ skin is the largest organ of the body 15% of body weight. Answers ch 7 answers chapter 7 skin and its appendages skin.
In which layer are the labile cells actively mitotic. Most of the skin is haired although the hair in most areas is short, fine and only lightly pigmented. Skin and appendages dr laxman khanal mshuman anatomy batch 2011 2. This presentation was designed to go along with an anatomy chapter on the integumentary system. It is also the largest organ of the human body, providing around 10% of the body mass of. Integumentary chapter 4 skin and body membranes packet answers key.
This can be adapted to coordinate with any textbook. This assignment could earn a quiz grade, or be gradedcorrected in class. Modified skin cells responsible for protection and insulation. Hairs grow from a cavity called hair follicle, which is located in the dermis as seen in the figure. Hair is a keratinous filament growing out of the epidermis.
1232 715 807 564 588 354 235 736 1428 1103 1468 1085 885 1460 1156 487 1374 394 785 948 345 1386 754 767 688 788 394 174 225 1130 192 650 1455 1468 1213 643 477 705