Anatomy & Physiology: Integumentary System

Question 1

Integumentary System

Answer 1

Body system comprised of the skin and accessory structures, including the hair, sebaceous glands, sweat glands, and nails.

Question 2

Epidermis

Answer 2

The outermost layer of the skin.

Question 3

Keratin

Answer 3

Made of keratinocytes. A fibrous protein forming the main structural constituent of hair, feathers, hoofs, nails, claws, and horns.

Question 4

Dermis

Answer 4

Deep, thick layer is made of tough connective tissue located directly under the epidermis.

Question 5

Sweat Glands

Answer 5

Produce a fluid that contains water, salts, and other waste products.

Question 6

Apocrine

Answer 6

Glands that are found primarily in the armpits and groin area, and are attached to hair follicles and create a watery fluid that contains proteins and fats.

Question 7

Eccrine

Answer 7

Glands found all over the body primarily on the forehead, neck, palms, and soles of feet. They regulate body temperature with sweating if the body becomes too hot.

Question 8

Sebaceous Glands

Answer 8

Oil-Producing glands are typically attached to hair follicles.

Question 9

Sebum

Answer 9

A fatty, oily substance released by sebaceous glands.

Question 10

Hypodermis

Answer 10

The region beneath the dermis that contains subcutaneous tissue.

Question 11

Cuticle

Answer 11

A layer of dead skin cells that accumulate and form a thick overhang layer at the base of the nail and around the nail edge.

Question 12

Lunula

Answer 12

The white space between the nail bed and cuticle.

Question 13

Matrix

Answer 13

A layer of tissue that contains blood vessels and nerves. Located beneath the cuticle.

Question 14

Hair Shaft

Answer 14

Consists of the hair that is exposed on the surface of the body and is not attached to the hair follicle.

Question 15

Hair Root

Answer 15

Attached to the hair follicles and found beneath the skin’s surface.

Question 16

Hair Bulb

Answer 16

Extending beyond the hair root, deep beneath the skin.

Question 17

Metastasis

Answer 17

The process of some tumor producing cells that can move away from the original site of DNA damage and establish new tumors in other organs.

Question 18

Basal Cell Carcinoma

Answer 18

This is the most common type of skin cancer that occurs in the basal cells of the epidermis.

Question 19

Squamous Cell Carcinoma

Answer 19

This type of skin cancer in the squamous cells of the epidermis. This type of skin cancer is more aggressive than basal cell carcinoma. If not removed it can metastasize.

Question 20

Malignant Melanoma

Answer 20

This type of skin cancer occurs when there is an uncontrolled growth of melanocytes in the epidermis. Often appear as a dark patch, and is the most dangerous and fatal form of skin cancer.