Appendages

Question 1

What are the 3 stages of hair growth?

What stage lasts the longest?

Answer 1

ACT

Anagen - growing
Catagen - involuting
Telogen - resting

Anagen

Question 2

What is a club hair?

Answer 2

Hair that is no longer attached to dermal papilla and is ready to fall out

Question 3

How does hair get its colour?

Answer 3

Melanocytes found above dermal papilla

Question 4

What makes up the hair bulb at the base of a hair follicule?

Answer 4

Matrix and papillae

Question 5

What is telogen effluvium?

Answer 5

Complete loss of hair which grows back

• post-birth
• after chemo

Hormonally driven

Question 6

What is the “pilosebaceous gland”?

Answer 6

Dermal + epidermal part of hair follicle
inc.
sebaceous gland

Question 7

What part of the pilosebaceous gland is responsible for goosebumps?

Answer 7

Arrector pili muscle

Question 8

Is the dermal papillae of the hair follicle found in the dermis or epidermis?

Answer 8

Dermis

Question 9

Nails grow 0.1mm every day. True or false?

Answer 9

True

Question 10

The nail matrix/root is v different to hair bulb. True or false?

Answer 10

False - they are very similar

Question 11

For each of the following structures describe their function.

• Hyponychium
• Cuticle
• Nail matrix

THEN GO TO ONE NOTE AND IDENTIFY THEM + MORE

Answer 11

Hyponychium
- secures free edge of nail plate

Cuticle
- extension of skin onto the nail plate

Nail matrix
- cells divide to produce hard keratin

Question 12

What is onycholisis?

Answer 12

Lifting of the nail bed