5.1 Integumentary Questions - Part 2

Question 1

What type of cells are found in the stratum corneum?`

Answer 1

Keratinocytes

Question 2

In most skin, the outer layer is referred to as keratinized cells. Why?

Answer 2

The dead cells are filled with keratin.

Question 3

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

Answer 3

Stratum corneum

Question 4

Name the lower layer of the epidermis.

Answer 4

Stratum basale

Question 5

Melanocytes produce what chemical?

Answer 5

Melanin, a dark black pigment

Question 6

What color is the pigment called melanin?

Answer 6

Black

Question 7

Melanocytes transfer the melanin they produce into __________________.

Answer 7

Keratinocytes

Question 8

What is the purpose of melanin?

Answer 8

To block the UV sun rays that can damage the DNA in the stem cells of the stratum basale. The UV rays can cause cancer.

Question 9

Melanin protects the cells undergoing mitosis in which layer of the epidermis?

Answer 9

Stratum basale

Question 10

The outer layer of epidermal cells that contains dead and keratinized cells is called the:

Answer 10

Stratum corneum

Question 11

What are the two major fibers in the dermis?

Answer 11

Collagen and elastin

Question 12

Name what structures are found in the dermal layer of the skin.

Answer 12

• Arrector Pili Muscles
• Hair Follicles
• Sebaceous Glands
• Small Blood Vessels
• Sweat Glands
• Sensory receptors

Question 13

Fingernails and Footprints are formed by:

Answer 13

Dermal papillae

Question 14

The name of the smooth muscle that raises hair in goose bumps is called ______________________.

Answer 14

Arrector pili muscle

Question 15

What types of tissues are found in the hypodermis?

Answer 15

• Loose connective tissue
• adipose tissue
• Arteries and veins carry blood
• Nerves

Question 16

Loose connective tissue functions to:

Answer 16

Connect (bind) structures

Question 17

The loose connective tissue of the hypodermis connects the _________________ to deeper structures such as bones and muscles.

Answer 17

Dermis layer of the skin

Question 18

Adipocytes store _____________.

Answer 18

Fat

Question 19

What is the purpose of the fat in adipose tissue?

Answer 19

• Insulates the body
• “pads” the body
• Stores energy

Question 20

White blood cells (leukocytes) are found in blood. White blood cells are important in destroying __________________.

Answer 20

Microbes

Question 21

The hypodermis is also called the:

Answer 21

Subcutaneous