Chapter 5 - The Integumentary System

Introduction

100

Which layer of the skin has NO blood vessels?

A. Dermis

B. Epidermis

C. Hypodermis

D. Papillary

B. Epidermis

200

Which layer is NOT part of your skin?

A. Dermis

B. Epidermis

C. Hypodermis

D. Papillary

C. Hypodermis

300

What percentage of body weight does the skin make up in the average adult?

A. 4%

B. 7%

C. 10%

D. 18%

B. 7%

400

All of the following contribute to skin color EXCEPT _________.

A. hemoglobin

B. carotene

C. keratin

D. melanin

C. Keratin

500

This layer of the skin is responsible for our fingerprints.

A. Reticular dermis

B. Epidermis

C. Hypodermis

D. Papillary dermis

D. Papillary Dermis

Epidermis

100

Mitosis occurs primarily in which stratum of the epidermis?

A. Basale

B. Corneum

C. Granulosum

D. Spinosum

A. Basale

200

What protein gives the epidermis its protective properties?

A. Carotene

B. Collagen

C. Keratin

D. Melanin

C. Keratin

300

Which cells in the epidermis are key activators of the immune system?

A. Keratinocytes

B. Melanocytes

C. Dendritic cells

D. Tactile cells

C. Dendritic Cells

400

Dogs track humans by the scent of epithelial cells that are constantly being shed. These cells shed from which stratum?

A. Basale

B. Corneum

C. Granulosum

D. Spinosum

B. Corneum

500

In which layer of the epidermis would you expect to find the healthiest cells?

A. Basale

B. Corneum

C. Granulosum

D. Papillary

A. Basale

Dermis

100

The dermis is composed of what type of tissue?

A. Adipose

B. Connective

C. Epithelial

D. Stratified squamous

B. Connective

200

Which of the following is NOT associated with the dermis?

A. Blood vessels

B. Collagen

C. Elastin

D. Keratin

D. Keratin

300

Which layer of the dermis is composed of dense irregular connective tissue?

A. Epidermis

B. Reticular layer

C. Hypodermis

D. Papillary layer

B. Reticular Layer

400

Which layer of the dermis is closest to the epidermis?

A. Stratum basale

B. Stratum corneum

C. Papillary layer

D. Reticular layer

B. Papillary Layer

500

Peglike folds of the superficial layer of the dermis are called dermal ________.

A. corpuscles

B. papillae

C. flexures

D. ridges

B. Papillae

Accessory Glands

100

Sudoriferous glands are also known as _________ glands.

A. ceruminous

B. endocrine

C. sebaceous

D. sweat

D. Sweat

200

What is sweat mostly composed of?

A. Sodium chloride

B. Antibodies

C. Water

D. Metabolic wastes

C. Water

300

The sweat glands that are important in body temperature regulation are the ______ glands.

A. eccrine

B. apocrine

C. ceruminous

D. sebaceous

A. Eccrine

400

This gland, found in the skin, is also a holocrine gland.

A. Endocrine

B. Ceruminous

C. Sebaceous

D. Sudoriferous

C. Sebaceous

500

Which of the following is NOT an accessory gland of the skin?

A. Sebaceous gland

B. Ceruminous gland

C. Mammary gland

D. All are accessory glands of the skin.

D. All are Accessory glands of the skin

Hair and Nails

100

Hair and nails are modifications of the ________.

A. dermis

B. epidermis

C. hypodermis

D. none of the above, because they are not part of the skin

B. Epidermis

200

The protein found in our hair and nails is ________.

A. collagen

B. carotene

C. elastin

D. keratin

D. Keratin

300

The smooth muscle associated with a hair follicle is called _________.

A. arrector pili

B. arrector vellus

C. alopecia areata

D. erector folliculi

A. Arrector Pilli

400

All of the following are associated with hair EXCEPT _________.

A. cuticle

B. matrix

C. medulla

D. lunule

D. Lunule

500

Which of the following is NOT associated with nails?

A. Eponychium

B. Keratin

C. Matrix

D. Medulla

D. Medulla