The Integumentary System

Question 1

The organ system that includes your skin, hair, nails, sweat glands, and oil glands

Answer 1

Integumentary System

Question 2

The spider shaped cells in the epidermis that are responsible for producing the brown pigment melatonin

Answer 2

Melanocytes

Question 3

The tissue type found in the epidermis

Answer 3

Stratified Squamos Epithelial

Question 3

The type of epidermis with five named layers, and only found on the palms of the hands, and the soles of the feet

Answer 3

Thick skin

Question 3

Made of loose areolar connective tissue, this is the layer of the dermis just deep to the epidermis

Answer 3

Papillary layer

Question 4

The deepest of the three main layers of the skin, made mostly of adipose (fat) tissue

Answer 4

Hypodermis

Question 5

The type of epidermis with just four named layers, and found everywhere on the body other than the palms of the hands and soles of the feet

Answer 5

Thin skin

Question 6

Epidermal cells that work with neurons to provide sensation for light touch

Answer 6

tactile cells (Merkel cells)

Question 7

The middle of the three main layers of the skin, where you find blood vessels, sweat glands, and most touch receptors

Answer 7

Dermis

Question 8

The dermal layer just deep to the papillary layer, made of dense irregular connective tissue

Answer 8

Recticular layer

Question 9

Epidermal cells that are part of the immune system, and try to gobble up invading bacteria before they can break into the deeper layers of the skin

Answer 9

Dendritic cells (Langerhans cells)

Question 10

This is the deepest layer of the epidermis, is made of just one layer of cells that are actively dividing to produce cells that get pushed out to the other layers

Answer 10

Stratum basale

Question 11

This layer of epidermal cells looks grainy because the cells are producing large amounts of keratin before they die

Answer 11

Stratum granulosum

Question 12

The main type of cells in the epidermis, these make a lot of the protein keratin which makes the skin durable

Answer 12

Keratinocytes

Question 13

This layer of epidermal cells is held together by protein fibers, and is the layer just superficial to the layer where active cell division is occurring

Answer 13

Stratum spinosum

Question 14

Structures supported by dermal papillae, also known as fingerprints

Answer 14

Friction ridges

Question 15

The so called “clear layer” of the epidermis, these 2-3 layers of keratinocytes are only found in thick skin on the palms of the hands and soles of the feet

Answer 15

Stratum lucidum

Question 16

The most superficial layer of the epidermis, made of 20-30 layers of dead keratinocytes that eventually slough off, its name means “horny layer”

Answer 16

Stratum corneum

Question 17

The only vitamin that can be made in the body, its synthesis starts when sun hits the skin.

Answer 17

Vitamin D

Question 18

A variable and potentially high - up to 12 liters per day - amount of sweat produced as needed to cool the body.

Answer 18

Sensible perspiration

Question 19

Reddened skin caused by increased blood flow due to high body temperature, fever, inflammation, or embarrassment.

Answer 19

Erythema

Question 20

The type of modified apocrine sweat gland that produces milk in lactating women.

Answer 20

Mammary glands

Question 21

A type of receptor in the epidermis that is sensitive to light touch.

Answer 21

Tactile corpuscle

Question 22

The type of skin gland that produces oil in hair follicles.

Answer 22

Sebaceous glands

Question 23

The collective name for all the parts of the nervous system that sense touch and pressure in the skin.

Answer 23

Cutaneous sensory receptors

Question 24

The type of sudoriferous glands located all over the body but concentrated on the palms of the hands and soles of the feet, these produce salty watery sweat.

Answer 24

Eccrine sweat glands

Question 25

Dermal blood vessels do this to dump excess body heat.

Answer 25

Vasodilate

Question 26

The part of every hair that extends beyond the surface of the skin.

Answer 26

Hair shaft

Question 27

The part of every hair embedded in the skin.

Answer 27

Hair follicle

Question 28

Dermal blood vessels do this to reduce heat loss and send blood deeper to keep vital organs warm.

Answer 28

Vasoconstrict

Question 29

The type of modified apocrine sweat gland that produces ear wax.

Answer 29

Ceruminous glands

Question 30

A yellowing of skin, usually indicating liver dysfunction and a buildup of bile in the blood.

Answer 30

Jaundice

Question 31

Meaning “blue appearance”, this term describes the color of skin — usually the lips — when blood oxygen levels are low.

Answer 31

Cyanosis

Question 32

The primary human skin pigment that mostly protects deeper layers of the skin from damage from UV light from the sun.

Answer 32

Melanin

Question 33

A type of receptor in the dermis that is sensitive to vibration and wide pressure.

Answer 33

Lamellar corpuscle

Question 34

A technical name for sweat glands, and located all over the body, these skin glands may produce either watery or sticky sweat.

Answer 34

Sudoriferous glands