Skin Anatomy and Functions Quiz

Questions and Answers

What are papillae?

They fit into the surface of the skin and are part of the dermis.

How do papillae provide a method of identification?

They form unique ridges, creating fingerprints and footprints.

What is the proper name for sweat glands?

Sudoriferous glands.

Name 3 substances found in perspiration/sweat.

Water, salts, body wastes. Signup and view all the answers

What is the proper name for oil glands?

Sebaceous glands. Signup and view all the answers

What are the functions of oil glands?

Keep the skin moist and fight infections. Signup and view all the answers

What is alopecia?

Baldness - permanent loss of hair of the scalp. Signup and view all the answers

List 7 functions of the skin.

Protection, storage, excretion, body temperature regulation, sensory perception, production, absorption. Signup and view all the answers

What happens when blood vessels dilate?

They get larger, letting excess heat escape through the skin. Signup and view all the answers

What happens when blood vessels constrict?

They get smaller, therefore heat is retained in the body. Signup and view all the answers

What does erythema indicate?

Burns or congestion of blood in the vessels - reddish color of the skin. Signup and view all the answers

What does jaundice indicate?

Bile in the blood from liver or gall bladder disease - yellow discoloration. Signup and view all the answers

What does cyanosis indicate?

Insufficient oxygen - bluish discoloration. Signup and view all the answers

What are blisters or sacs full of fluid called?

Vesicles. Signup and view all the answers

What are firm raised areas on the skin called?

Papules. Signup and view all the answers

What are areas of dried pus and blood called?

Crusts. Signup and view all the answers

What are sacs filled with pus called?

Pustules. Signup and view all the answers

What are flat spots on the skin called?

Macules. Signup and view all the answers

What are itchy, elevated areas with an irregular shape called?

Wheals. Signup and view all the answers

What is a deep loss of skin surface that may extend into the dermis?

Ulcer. Signup and view all the answers

What is a closed sac, usually filled with semisolid material called?

Cyst. Signup and view all the answers

What is impetigo?

Caused by strep and staph infection - red lesions on child's face. Signup and view all the answers

What are verrucae?

Warts from HPV - rough, hard, elevated, rounded surface forms on the skin. Signup and view all the answers

What is dermatitis?

Inflammation of the skin, caused by an allergic reaction to common things. Signup and view all the answers

What is acne vulgaris?

Inflammation of the sebaceous glands. Signup and view all the answers

What is athlete's foot?

Contagious fungal infection, itchy skin, blisters, and cracks. Signup and view all the answers

What is psoriasis?

Chronic, noncontagious thick red areas with white or silver scales. Signup and view all the answers

What is ringworm?

Highly contagious fungal infection of the skin or scalp - flat or raised circle with an unhealthy inner. Signup and view all the answers

What is basal cell carcinoma?

Skin cancer in the basal cells of the dermis, slow growing, pink or yellow lesions. Signup and view all the answers

What is melanoma?

Most dangerous skin cancer, brown, black, or pink lesions, can develop from a mole. Signup and view all the answers

Study Notes

Papillae and Identification

Papillae are small projections that fit into the skin's surface and are part of the dermis.
They create unique patterns that result in fingerprints and footprints, serving as methods of identification.

Glands in the Skin

Sweat glands are formally known as sudoriferous glands, which produce perspiration containing water, salts, and body wastes.
Oil glands, or sebaceous glands, maintain skin moisture and help fight infections.

Hair Loss and Skin Functions

Alopecia refers to permanent hair loss, commonly affecting the scalp.
The skin has seven functions: protection, storage, excretion, temperature regulation, sensory perception, production, and absorption.

Blood Vessel Response and Temperature Regulation

Blood vessels dilate (expand) to help release excess heat, assisting in temperature regulation.
Conversely, when blood vessels constrict (shrink), the body retains heat to maintain temperature.

Skin Disorders and Conditions

Erythema indicates a reddish skin hue due to burns or blood vessel congestion.
Jaundice presents as yellow discoloration from bile in the blood, often linked to liver or gall bladder issues.
Cyanosis results in blue skin due to insufficient oxygen.

Skin Lesions and Their Characteristics

Vesicles are blisters or sacs filled with fluid.
Papules are firm, raised areas on the skin.
Crusts represent areas with dried pus and blood.
Pustules are sacs filled with pus.
Macules are flat skin spots.
Wheals are itchy, elevated areas with irregular shapes.
Ulcers signify deep loss of skin, possibly extending into the dermis.
Cysts are closed sacs, typically filled with semisolid material.

Skin Infections and Conditions

Impetigo is a bacterial infection caused by streptococcus and staphylococcus, marked by red lesions on children's faces.
Verrucae, or warts, arise from HPV, typically featuring rough, hard surfaces.
Dermatitis is skin inflammation often triggered by allergic reactions.
Acne vulgaris involves inflammation of sebaceous glands, commonly seen in teens.

Fungal Infections

Athlete's foot is a contagious fungal infection leading to itchy skin, blisters, and cracks.
Ringworm is another highly contagious fungal infection that appears as a flat or raised circle on the skin or scalp.

Skin Cancer Types

Basal cell carcinoma is the slow-growing skin cancer originating in the basal cells of the dermis, characterized by pink or yellow lesions.
Melanoma is the most dangerous form of skin cancer, presenting as brown, black, or pink lesions, and can develop from pre-existing moles.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge on the anatomy and functions of the skin, including papillae, glands, and temperature regulation. This quiz covers various aspects of skin health, disorders, and the unique roles skin plays in our body. Ideal for students learning about human biology.