vitamin D3 is converted to calcidiol in the
liver.
Profilaggrin is converted to __________) as epidermal cells move superficially
filaggrin (filament aggregating protein
Keratin is synthesized in the
nail matrix.
_________ are avascular
Epidermal pegs
Hair follicles are
not avascular
Calbindin is synthesized at ribosomes within the ___________ cells
intestinal mucosal
Which type of cells are abundant in the dermis and play a role in connective tissue formation?
fibroblasts
Which layer of the skin does not undergo fibrosis?
Epidermis
What does fillagrin do in the epidermis?
Filaggrin can help maintain optimal pH of the epidermis.
cholecalciferol
The number of separate anagen phases experienced by a hair matrix in one year ________ affects the hair’s length.
negatively(because that means it’s interrupted more)
What type of immune cells are Langerhans cells classified as?
Dendritic
terminal hairs are _______- than vellus hairs
coarser
No cell division occurs in the hair matrix cells during the _______ phase.
telogen
epidermis.
keratin processing, lucidum
Why can’t you see eleidin in thin skin?.
Eleidin does not accumulate enough in thin skin to make a visible stratum
From which type of cells do skin derivatives arise?
Epidermal
About how long after formation do squame cells typically exfoliate from the skin?
4 weeks
What is the activity status of Vitamin D3?
Inactive
UV radiation converts ______________- in the skin to ______________
dehydrocholesterol, cholecalciferol
What is another name for Vitamin D3?
Cholecalciferol
palms and soles
dendritic cells