The Integumentary System - 5.1 Questions

Question 1

What organ is composed of a superficial epithelial layer and a deeper connective tissue layer?

Answer 1

The skin.

Question 2

What is the name of the upper layer of the skin?

Answer 2

Epidermis.

Question 3

What is the name of the lower layer of the skin?

Answer 3

Dermis.

Question 4

What type of tissue is the epidermis?

Answer 4

Stratified squamous epithelium.

Question 5

What lies deep to the dermis and attaches the skin to bones and muscles underneath the skin.

Answer 5

The hypodermis (also called the subcutaneous).

Question 6

What type of tissue is the hypodermis (subcutaneous)?

Answer 6

Loose connective tissue.

Question 7

One of the functions of the skin is thermoregulation. What is the role of the skin in thermoregulation?

Answer 7

The regulation of the body’s temperature by increasing and decreasing blood flow in the skin and sweating.

Question 8

The skin is the largest sense organ. What does skin have to detect heat, cold, pressure, touch and pain.

Answer 8

Nerve endings.

Question 9

What vitamin is made in the skin?

Answer 9

Vitamin D that is needed for bone development.

Question 10

Define Keratin:

Answer 10

A protein that hardens and waterproofs the epidermal skin cells.

Question 11

The majority of the skin cells are called:

Answer 11

keratinocytes

Question 12

Keratinocytes make the tough protein called:

Answer 12

Keratin.

Question 13

Stem cells found in the stratum basale are responsible for:

Answer 13

Mitosis

Question 14

The epidermis is avascular (lacks blood vessels).

True or False

Answer 14

True

Question 15

The stratum basale gets its nutrients from the underlying _________________.

Answer 15

Dermis

Question 16

What cells are found in the stratum basale?

Answer 16

Stem cells, melanocytes, keratinocytes and tactile cells.

Question 17

What type of cell is found in the stratum corneum?

Answer 17

Dead, keratin – packed keratinocytes.

Question 18

Name the upper layer (most superficial) layer of the epidermis.

Answer 18

Stratum corneum.

Question 19

What is the major tissue of the dermis?

Answer 19

Dense (fibrous ) connective tissue.

Question 20

Elastic fibers and collagen are found in what type of tissue.

Answer 20

Connective tissue

Question 21

Hair follicles, piloerector muscles, sweat glands, sebaceous glands and small blood vessels are found in this skin layer.

Answer 21

The dermis

Question 22

Name what is found in the dermal layer of the skin.

Answer 22

Hair follicles, piloerector muscles, sweat glands, sebaceous glands and small blood vessels are found in this skin layer.

Question 23

What types of tissues are found in the hypodermis?

Answer 23

Loose connective tissue and adipose cells. Arteries and veins travel through the hypodermis to the dermis.

Question 24

What is the purpose of the adipose tissue?

Answer 24

Adipocytes store fat that helps to insulate and pad the body.