The Skin

Question 1

How many layers does the skin have?

Answer 1

2
Epidermis
Dermis

Question 2

How many layers does the Epidermis have?

Answer 2

5

Question 3

The innermost layer of the Epidermis is called?

Answer 3

Stratum Basale

Question 4

Merkel cells are found in what layer of the Epidermis?

Answer 4

The Stratum Basale

Question 5

Melanocytes are found in what layer of the Epidermis?

Answer 5

The Stratum Spinosum

Question 6

The third layer of the Epidermis (from the bottom) is called?

Answer 6

Stratum Granulosum

Question 7

What layer of the Epidermis is only found in thick parts of the skin?

Answer 7

Stratum Lucidum

Question 8

The outermost layer of the Epidermis is called?

Answer 8

Stratum Corneum

Question 9

Bacteria that live normally on the surface of the skin are referred to as __________

Answer 9

Commensal microorganisms

Question 10

Mast cells are located in what part of the skin

Answer 10

The Dermis

Question 11

Sebaceous glands secrete __________ to lubricate the skin

Answer 11

Sebum

Question 12

What is the major difference between Apocrine sweat glands and Eccrine sweat glands?

Answer 12

Apocrine sweat glands open into the hair follicles and occur in areas with lots of hair.

Eccrine sweat glands open directly onto the skin’s surface and occur over most of the body.

Question 13

____________ is a muscle that attaches to the hair follicle to control hair movement.

Answer 13

Arrector Pili muscle

Question 14

The Dermis is otherwise called _________

Answer 14

True skin

Question 15

The skin received _____ of cardiac output

Answer 15

⅓ of cardiac output

Question 16

The skin is ______% waterproof

Answer 16

90

Question 17

The skin is ____kg in weight

Answer 17

3

Question 18

The skin covers __________ in diameter

Answer 18

9000cm²

Question 19

The Dermis is divided into __________ and ____________ portions

Answer 19

Papillary
Reticular

Question 20

What causes white hair in humans?

Answer 20

Absence of pigment and formation of air bubbles in hair shaft

Question 21

What causes grey hair in humans?

Answer 21

Absence of pigment

Question 22

Sebaceous gland secretion is under the control of the _______________ system

Answer 22

Endocrine

Question 23

Sebaceous gland secretion increases at ________________ and decreases during _______________

Answer 23

Puberty
Late pregnancy

Question 24

Sebaceous glands are absent in what parts of the body?

Answer 24

Palms and soles

Question 25

Sweat is odourless
True/False

Answer 25

True
Odour in your sweat is due to the action of bacteria