Integumentary System Questions and Answers Already Passed

Integumentary System Questions and Answers Already Passed What does the word integument mean? Means "covering." The skin is much more than an external body covering. What does the word integument mean? Means "covering." The skin is much more than an external body covering. How many different types of tissue is the skin made up of? Two How many different types of tissue is the skin made up of? Two What does keratinizing mean? To become hard and tough What does keratinizing mean? To become hard and tough What type of tissue is the dermis made of? Collagen and elastic What type of tissue is the dermis made of? Collagen and elastic Name two functions of the subcutaneous tissue Shock absorber and insulates the deeper tissues from extreme temp changes occurring outside the body. Name two functions of the subcutaneous tissue Shock absorber and insulates the deeper tissues from extreme temp changes occurring outside the body. What type of cell makes up most of the epidermis? Keratinocytes What type of cell makes up most of the epidermis? Keratinocytes What is the bottom layer of the epidermis called? Stratum Basale What is the bottom layer of the epidermis called? Stratum Basale What is the outermost layer of the epidermis called? Stratum Corneum What is the outermost layer of the epidermis called? Stratum Corneum How many cell layers thick is the epidermis layer? 5 How many cell layers thick is the epidermis layer? 5 How long does it take to regenerate an entirely new epidermis? 25 to 45 days How long does it take to regenerate an entirely new epidermis? 25 to 45 days What type of cell produces melanin? Melanocytes What type of cell produces melanin? Melanocytes What causes tanning to occur? When the skin is exposed to sunlight, it stimulates the melanocytes to produce more melanin pigment. Therefore tanning occurs. What causes tanning to occur? When the skin is exposed to sunlight, it stimulates the melanocytes to produce more melanin pigment. Therefore tanning occurs. What structures occur when melanin is concentrated in one spot? Freckles and moles. What structures occur when melanin is concentrated in one spot? Freckles and moles. When you purchase leather goods, what treated layer of the animal's skin are you buying? The dermis When you purchase leather goods, what treated layer of the animal's skin are you buying? The dermis What are the pain and touch receptors called in the dermis? Meissner's Corpuscles What are the pain and touch receptors called in the dermis? Meissner's Corpuscles What do you call the deep pressure receptors in the dermis? Pacinian Corpuscles What do you call the deep pressure receptors in the dermis? Pacinian Corpuscles What are the two major regions of the dermis called? Papillary and reticular layers What are the two major regions of the dermis called? Papillary and reticular layers What three pigments contribute to skin color? Yellow, reddish brown, and black What three pigments contribute to skin color? Yellow, reddish brown, and black Describe redness or Erythema Reddened skin may indicate embarrassment (blushing), fever, hypertension, inflammation, or allergy. Describe redness or Erythema Reddened skin may indicate embarrassment (blushing), fever, hypertension, inflammation, or allergy. Describe Pallor or Blanching Under certain types of emotional stress (fear, anger, and others), some people become pale. Pale skin may also signify anemia, low blood pressure, or impaired blood flow into the area. Describe Pallor or Blanching Under certain types of emotional stress (fear, anger, and others), some people become pale. Pale skin may also signify anemia, low blood pressure, or impaired blood flow into the area. Describe Jaundice An abnormal yellow skin tone usually signifies a liver disorder in which excess bile pigments are absorbed into the blood, circulated throughout the body, and deposited in body tissues. Also referred to as yellow cast. Describe Jaundice An abnormal yellow skin tone usually signifies a liver disorder in which excess bile pigments are absorbed into the blood, circulated throughout the body, and deposited in body tissues. Also referred to as yellow cast. Describe Bruises or black-and-blue marks Black-and-blue marks reveal sites where blood has escaped from the circulation and has clotted in the tissue spaces. Such clotted masses are called hematomas. An unusual tendency to bruising may signify a deficiency if vitamin C in the diet or hemophilia (bleeder's disease) Describe Bruises or black-and-blue marks Black-and-blue marks reveal sites where blood has escaped from the circulation and has clotted in the tissue spaces. Such clotted masses are called hematomas. An unusual tendency to bruising may signify a deficiency if vitamin C in the diet or hemophilia (bleeder's disease) What are sebaceous glands? Oil glands What are sebaceous glands? Oil glands What is the product of sebaceous glands? Sebum What is the product of sebaceous glands? Sebum Describe whitehead When a sebaceous gland becomes blocked by sebum it turns white Describe whitehead When a sebaceous gland becomes blocked by sebum it turns white Describe blackhead When accumulated material oxidizes and dries, it darkens, forming a blackhead. Describe blackhead When accumulated material oxidizes and dries, it darkens, forming a blackhead. Describe the two types of sweat glands Eccrine- far more numerous and are found all over the body. Apocrine- largely confined to the auxiliary and genital areas of the body. Describe the two types of sweat glands Eccrine- far more numerous and are found all over the body. Apocrine- largely confined to the auxiliary and genital areas of the body. What is a hair produced by? A hair follicle What is a hair produced by? A hair follicle What are the small bands of smooth muscle connected to every hair called? Arrector Pilli What are the small bands of smooth muscle connected to every hair called? Arrector Pilli Name three major regions of the nail Free edge, body, and root Name three major regions of the nail Free edge, body, and root Name the scale-like modifications of the epidermis Fingernail Name the scale-like modifications of the epidermis Fingernail The Stratum Basale that extends beneath the nail is called what? Nail bed The Stratum Basale that extends beneath the nail is called what? Nail bed What is the white crescent portion of the nail near the cuticle called? Lunula What is the white crescent portion of the nail near the cuticle called? Lunula What are three types of skin cancer? Basal Cell Carcinoma, Squamous Cell Carcinoma, and Malignant Melanoma What are three types of skin cancer? Basal Cell Carcinoma, Squamous Cell Carcinoma, and Malignant Melanoma Epidermis layers in order from outermost to deepest Stratum Corneum, Stratum lucidum, Stratum granulosum, Stratum spinosum, stratum Basale Epidermis layers in order from outermost to deepest Stratum Corneum, Stratum lucidum, Stratum granulosum, Stratum spinosum, stratum Basale Describe athlete's foot Itchy, red, peeling condition between the toes resulting from fungus infection. Describe athlete's foot Itchy, red, peeling condition between the toes resulting from fungus infection. Describe Boils and Carbuncles Inflammation of hair follicles and sebaceous glands, common on the dorsal neck. Carbuncles are composite boils typically caused by bacterial infection (often staphylococcus aureus) Describe Boils and Carbuncles Inflammation of hair follicles and sebaceous glands, common on the dorsal neck. Carbuncles are composite boils typically caused by bacterial infection (often staphylococcus aureus) Describe cold sores (Fever blisters) small fluid filled blisters that itch, and sting, caused by a herpes simplex infection. The virus localized in a cutaneous nerve, where is remains dormant until activated by emotional upset, fever, or UV radiation. Usually occur around the lips and in the oral mucosa of the mouth. Describe cold sores (Fever blisters) small fluid filled blisters that itch, and sting, caused by a herpes simplex infection. The virus localized in a cutaneous nerve, where is remains dormant until activated by emotional upset, fever, or UV radiation. Usually occur around the lips and in the oral mucosa of the mouth. Describe contact dermatitis Itching, redness, and swelling of the skin, progressing to blistering. Caused by exposure of the skin to chemicals that provoke allergic responses in sensitive individuals. Describe contact dermatitis Itching, redness, and swelling of the skin, progressing to blistering. Caused by exposure of the skin to chemicals that provoke allergic responses in sensitive individuals. Describe Impetigo Pink, water-filled, raise lesions (commonly around the mouth and nose) that develop a yellow crust and eventually rupture. Caused by a highly contagious staphylococcus infection; common in elementary school-aged children. Describe Impetigo Pink, water-filled, raise lesions (commonly around the mouth and nose) that develop a yellow crust and eventually rupture. Caused by a highly contagious staphylococcus infection; common in elementary school-aged children. Describe Psoriasis A chronic condition, characterized by overproduction of skin cells that results in reddened epidermal lesions covered with dry, silvery scales. When severe, may be disfiguring. It is believed to be an autoimmune disorder in which the immune system attacks a person's own tissues. Attacks often triggered by trauma, infection, hormonal changes, and stress. Describe Psoriasis A chronic condition, characterized by overproduction of skin cells that results in reddened epidermal lesions covered with dry, silvery scales. When severe, may be disfiguring. It is believed to be an autoimmune disorder in which the immune system attacks a person's own tissues. Attacks often triggered by trauma, infection, hormonal changes, and stress. What type of skin cancer is the most deadliest? Malignant Melanoma What type of skin cancer is the most deadliest? Malignant Melanoma