| A | B |
|---|
| What are the two types of body membranes | Epithelial and Connective |
| The skin is what type of membrane? | Cutaneous |
| Open body cavities use which membranes? | Mucous |
| Closed body cavities use which membranes? | Serous |
| Joints and Tendons use which type of membranes? | Synovial |
| What do all membranes have in common? | Layers |
| What do serous and Mucous membranes have in common? | Visceral and periatal layers |
| Peritoneum is located where? | Abdomen |
| The pluera cavity is located where? | Lungs |
| The Pericardium is located where? | Heart |
| P. acnes, hormones, keritonocytes, and hair follicles filled with oil cause... | acne |
| Benzoyl Peroxide | Destroys P. acnes and reduces oil production |
| Resorcinol and sulfur both... | break down blackheads and whiteheads |
| Salicylic Acid | breaks down blackheads and whiteheads cut down the shedding of cells lining the hair follicles |
| What does not cause acne? | Caffeine, Chocolate, food, dirt, and stress |
| Who gets acne? | Everyone. Slows at 40 to 50 |
| An organ made of cutaneous membrane, stratified squamous epithelium and dense connective tissue is... | skin |
| Are skin and the integumentary system synonomous? | No. Skin (cutaneous membrane) is only a part of the integumentary system. |
| Integument means... | covering |
| What are the parts of the integumentary system? | sweat and oil glands, hair, nails, and cutaneous membrane |
| What are the jobs of the skin? | Regulate heat loss, Excretes urea, salts, and water, water retention, makes proteins, synthesizes Vit. D, Integrates with the nervous system to provide a sense of touch. |
| What are the three layers of the skin? | Epidermis, Dermis, Hypodermis |
| What does keratin do? | becomes hard for protection |
| Most of the epidermis is avascular... this means... | It does not have a blood supply and is therefore dead |
| What cells produce pigment? | Melanocytes create a pigment called melanin |
| Append | to hang on |
| What are the skin appendages? | glands, hair, and nails |
| All appendages are part of which layer of the skin? | Epidermis |
| What guards the head and eyes.., | hair |
| Only which hair retains body heat? | Head hair |
| Most body hair has no major function and is considered... | vestigial |
| What does hair grow from? | hair follicles |
| the hair bulb matrix | zone of hair growth that contains melanin |
| Bottom of hair is called the | root |
| the root of the hair is enclosed in the | hair follicle |
| Exiting the skin the hair grows out of the | shaft |
| What are the three layers of hair? | Medulla, cortex, cuticle |
| Which layer protects agains abrasion? | Cuticle |
| What makes hair look different? | Amount of melanin, shape of hair |
| The more hooked the hair follicle the more __________ the hair. | curly |
| what does the nail grow from? | the root grows from the nail matrix |
| What makes nail so hard... | Keratinized |
| What does the nail grow down? | Nail bed |
| What is the moon shape at the beginning of the nail called? | Lunula |
| What do melanocytes do? | Produce pigments to protect the cells DNA |
| What layer of the skin makes leather? | Dermis |
| What do sweat glands do? | Maintain body temp and excrete waste |
| What is the job of the dermis? | Protects, maintains body temp, produce sensation, |
| What are the main cutaneous glands? | sebaceous, and sweat glands |
| Cutaneous glands that excrete to the outside are called... | exocrine glands |
| What do sebaceous glands produce? | Oil |
| What is skin oil or sebum for? | softening, water retention, killing bacteria |
| When testosterone levels are high what is produced in excess? | hair |
| Sweat glands do what? | Maintain homeostasis and excrete waste |
| What are the two types of sweat glands | Eccrine and apocrine |
| Eccrine Glands do what | cover body, contain water, salt, vitaman C, wastes, and lactic acid |
| Eccrine glands have a pH between | 4 and 6, it is antibacterial |
| When do eccrine glands develop? | 4th month of gestation |
| Where are appocrine glands located? | auxilliary and genital areas |
| What creates body odor? | apocrine glands make a milky-yellow color that is oderless untill bacteria eat it. |
| When do apocrine glands develop? | 6th month of gestation |
| Why do you not have wrinkles when you are young? | Collagen, elastic fibers, loose fat are high. |
| What does collagen do? | Keeps skin strong and hydrated |
| What do elastic fibers do? | keep skin elastic |
| What happens when the epidermis and dermis separate? | a blister |
| What causes goose bumps | Arrector pili that attach to hair follicles and contract |
| What is the job of the hypodermis? | Anchors the skin, absorbs shock, insulates, gives shape to fatty areas of the body |
| What is a bedsore? | Decubitus ulcer caused by the pinching off of blood supply to the skin. |
| What is it called when you turn blue? | Cyanosis |
| When do people get cyanosis? | When they are oxygen deprived...heart attack |
| What is jaundice | bile from the liver is absorbed by the blood. Person yellows. |
| What causes jaundice? | Liver disease |
| What is a hematoma? | Bruise |
| What causes a hematoma? | blood escaping from damaged blood vessels |
| What is alopecia? | balding |
| Too much testosterone and hair growth lead to... | alopecia |
| What do smoking and sun do to the epidermis? | Cause leathery skin, cold sores, depressed immune system due to DNA damage |
