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Worksheets

WEEK 5

Total questions: 35

Worksheet time: 18mins

Name
Class
Date
1.

What is the largest organ system in the human body?

a)

Nervous system

b)

Muscular system

c)

Integumentary system

d)

Digestive system

2.

What percentage of body weight does the integumentary system account for?

a)

5%

b)

10%

c)

16%

d)

20%

3.

The integument is made up of which two main parts?

a)

Epidermis and Dermis

b)

Cutaneous membrane and Accessory structures

c)

Hypodermis and Epidermis

d)

Sebaceous and Sweat glands

4.

Which of the following is NOT an accessory structure of the integumentary system?

a)

Hair

b)

Nails

c)

Sweat glands

d)

Ligaments

5.

The outermost layer of the skin is called the:

a)

Epidermis

b)

Dermis

c)

Hypodermis

d)

Subcutaneous layer

6.

The dermis is located:

a)

Above the epidermis

b)

Below the epidermis

c)

Inside the epidermis

d)

Outside the body

7.

What is the main function of keratinized cells in the epidermis?

a)

Provide pigmentation

b)

Waterproof and protect the skin

c)

Store fat

d)

Transmit nerve impulses

8.

Which layer of the epidermis is responsible for new cell production?

a)

Stratum corneum

b)

Stratum granulosum

c)

Stratum spinosum

d)

Stratum germinativum (basale)

9.

How long does it take for a cell from the stratum basale to reach the stratum corneum?

a)

1-2 days

b)

5-7 days

c)

15-30 days

d)

60 days

10.

Which layer is found only in thick skin?

a)

Stratum corneum

b)

Stratum lucidum

c)

Stratum spinosum

d)

Stratum granulosum

11.

Thick skin is found on which parts of the body?

a)

Back and arms

b)

Palms and soles

c)

Neck and face

d)

Abdomen and chest

12.

Which cells in the stratum basale synthesize melanin?

a)

Keratinocytes

b)

Merkel cells

c)

Langerhans cells

d)

Melanocytes

13.

What is the main function of Langerhans cells?

a)

Produce keratin

b)

Sense touch

c)

Act as immune cells

d)

Secrete oil

14.

The main protein in the stratum corneum is:

a)

Collagen

b)

Keratin

c)

Actin

d)

Myosin

15.

What is the function of Merkel cells?

a)

Sense touch

b)

Produce oil

c)

Fight infections

d)

Store fat

16.

Which layer of the dermis is responsible for fingerprints?

a)

Reticular layer

b)

Papillary layer

c)

Subcutaneous layer

d)

Epidermis

17.

The papillary layer consists of what type of connective tissue?

a)

Dense regular

b)

Areolar

c)

Adipose

d)

Reticular

18.

What percentage of the dermis is the reticular layer?

a)

20%

b)

50%

c)

80%

d)

100%

19.

The reticular layer contains mostly what type of fibers?

a)

Elastic and keratin

b)

Reticular and actin

c)

Collagen and elastic

d)

Keratin and myosin

20.

Which layer is responsible for body temperature regulation?

a)

Epidermis

b)

Reticular layer of dermis

c)

Papillary layer of dermis

d)

Subcutaneous layer

21.

The hypodermis is also known as the:

a)

Dermis

b)

Epidermis

c)

Subcutaneous layer

d)

Cutaneous layer

22.

The hypodermis contains mainly

a)

Adipose tissue

b)

Bone tissue

c)

Nervous tissue

d)

Cartilage

23.

The main function of the hypodermis is to:

a)

  1. Protect the skin from UV radiation

b)

  1. Provide a barrier against bacteria

c)

  1. Store fat and insulate the body

d)

  1. Sense pain and temperature

24.

What gives fingerprints their unique patterns?

a)

  1. Stratum granulosum

b)

  1. Dermal ridges

c)

  1. Sebaceous glands

d)

  1. Sweat pores

25.

Sweat glands are classified as:

a)

  1. Exocrine glands

b)

  1. Endocrine glands

c)

  1. Holocrine glands

d)

  1. Paracrine glands

26.

Sebaceous glands produce:

a)

Sweat

b)

Oil

c)

Wax

d)

Water

27.

Which of the following is NOT a function of the skin?

a)

Protection

b)

Vitamin D synthesis

c)

Blood production

d)

Temperature regulation

28.

What causes a callus to form?

a)

  1. Increased blood flow

b)

  1. Rapid cell division in the epidermis due to friction

c)

  1. Bacterial infection

d)

  1. Exposure to UV light

29.

The main pigment responsible for skin color is:

a)

  1. Hemoglobin

b)

  1. Carotene

c)

  1. Melanin

d)

  1. Keratin

30.

Which vitamin is synthesized by the skin in response to UV light?

a)

Vitamin A

b)

Vitamin C

c)

Vitamin D

d)

Vitamin K

31.

A deep cut that penetrates the dermis will likely form a:

a)

  1. Callus

b)

  1. Scar

c)

  1. Blister

d)

  1. Freckle

32.

The primary immune cells in the epidermis are:

a)

  1. Langerhans cells

b)

  1. Merkel cells

c)

  1. Fibroblasts

d)

  1. Sebocytes

33.

A third-degree burn affects which layers?

a)

  1. Epidermis only

b)

  1. Epidermis and dermis

c)

  1. Epidermis, dermis, and hypodermis

d)

  1. Only the dermis

34.

Hair and nails are composed of:

a)

  1. Melanin

b)

  1. Collagen

c)

  1. Keratin

d)

Actin

35.

The healing process of skin includes which four stages?

a)

  1. Bleeding, scabbing, cell migration, scar formation

b)

  1. Bleeding, swelling, peeling, healing

c)

  1. Inflammation, scab formation, blistering, regeneration

d)

  1. Inflammation, muscle contraction, scarring, sweating

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