Dermato-Musculoskeletal Summative 1

This is not true regarding fingerprints : 

• it helps increase friction on the fingers and palmar region to better grasp objects

• it is caused by the thickening and thinning of the reticular dermis 

• it is caused by protruding papillary dermis

• it is formed before birth

Which are the correct steps for wound healing : 

• inflamation - bleeding - remodeling - proliferation

• bleeding - inflamation - remodeling - proliferation

• bleeding - inflamation - proliferation - remodeling

• proliferation - bleeding - inflamation - remodeling

The actual nail plate is comparable to which structure on the skin? 

• dermis

• stratum corneum

• stratum basale

• apocrine sweat glands

Which cell is found in the stratum basale?

• Langerhans cell

• dead keratinized cells

• Meisner corpuscle

• melanocytes

What is the characteristic trait of an apocrine sweat gland

• can be found in the palms

• release secretions by dying

• can only be found in the armpits and boobs

• release secretions by forming and releasing secretory vesicles

Which of these are false:

• Increased collagen cross-linking causes it to be more brittle and rigid

• Hyaluronic acid is a glycosaminoglycan

• Collagen is coded by several different genes

• Scurvy is caused by abnormal synthesis of elastin

What is Epidermolytic Hyperkeratosis

• a disease where scaling, hyperkeratosis, and blistering occurs

• skin blistering disease

• disruption of hydroxylation for collagen formation

• decrease in keratin production

Melanogenesis is triggered by alpha-MSH

• True

• False

Vitamin D is made in the skin and will be converted into pro-vitamin D3

• True

• False

Which of these is influenced by aging?

• increased proliferation of keratinocytes

• increased melanin production because more melanocytes present

• lower fibroblast number and growth factor response

• increased collagen I production