Dermis and Subcutaneous layer

Question 1

Name the layers above and below the dermis

Answer 1

Epidermis and subcutaneous layer

Question 2

What are the functions of the dermis?

Answer 2

support, strength and elasticity.

Question 3

List the appendages of the dermis

Answer 3

hair, hair follicle, arrector pili muscle, sudoriferous glands, sebaceous glands, blood vessels, lymph vessels and nerve endings.

Question 4

Name the two types of sudoriferous (sweat) glands

Answer 4

Eccrine and apocrine

Question 5

What is the difference between eccrine and apocrine glands?

Answer 5

Eccrine are mostly everywhere on the body mainly on the palms of hands and soles of the feet. Apocrine are in the genital and underarm regions and produce body odour.

Question 6

What is the name of the oily substance which is produced by the sebaceous glands and contains fats, cholestrol and cellular debris?

Answer 6

Sebum.

Question 7

What does the arrector pili muscle do?

Answer 7

erects the hair in response to cold, fright and anxiety.

Question 8

What is the function of hair?

Answer 8

insulation, protection and assists with the sense of touch.

Question 9

What is the function of the lymphatic vessels found in the dermis?

Answer 9

helps to remove waste from skin tissues.

Question 10

This is a pore like projection that extends down to the dermis and forms the root bulb.

Answer 10

hair follicle.

Question 11

The dermis has two layers one superficial and one deep, name them.

Answer 11

superficial layer is the papillary layer.

deep layer is the reticular layer.

Question 12

Which protein fibres give the skin its strength and resillience?

Answer 12

collagen fibres.

Question 13

What is the function of the protein fibre elastin?

Answer 13

gives the skin its elasticity.

Question 14

Which fibres help to support and hold structures of the skin in place?

Answer 14

Reticular fibres

Question 15

Which cells react when the skin is damaged or an allergic reaction occurs?

Answer 15

mast cells - they create histamine causing vasodilation.

Question 16

What is the name of the white blood cell which travels around the dermis destroying bacteria and foreign matter?

Answer 16

phagocytes.

Question 17

Which cells form new fibrous tissue?

Answer 17

fibroblasts.

Question 18

What is the dermal papilla?

Answer 18

its where the capillary network for the skin forms

Question 19

Which vessels follow the same course as the veins?

Answer 19

Lymph vessels.

Question 20

What is the layer called which lies beneath the dermis?

Answer 20

Subcutaneous layer sometimes called hypodermis.

Question 21

What is the subcutaneous layer made up of?

Answer 21

connective tissue such as areolar and adipose.

Question 22

what is the function of the subcutaneous layer?

Answer 22

adipocytes cells (fat cells) are for insulation and the major arteries and veins which supply the skin are housed in the subcutaneous layer.

Question 23

What does S.H.A.P.E.S.V. mean?

Answer 23

its the functions of the skin Sectetion, Heat regulation, Absorption, Protections e.g. melanin production, Elimination, Sensation and Vitamin D production.