Seven questions on the structure of the dermis and subcutis
Structure of the dermis and subcutis
Created 2019.
This exercise will ask you a set of seven questions on the structure of the dermis and subcutis. Each question contains only one correct answer.
If you want to read up on it, you can do so by clicking on the link below.
- Name specific structural components of the basement membrane zone, dermis and subcutis
Created by: Dr Muhammad Wasay Ali Khan, DermNet NZ Volunteer
Editor: Adjunct A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand
Editor: Adjunct A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand
Structure of the dermis and subcutis
Created 2019.
This exercise will ask you a set of seven questions on the structure of the dermis and subcutis. Each question contains only one correct answer.
If you want to read up on it, you can do so by clicking on the link below.
- Name specific structural components of the basement membrane zone, dermis and subcutis
Created by: Dr Muhammad Wasay Ali Khan, DermNet NZ Volunteer
Editor: Adjunct A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand
Editor: Adjunct A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand
1. Which structure is part of the dermis:
a. Keratinocytes
b. Lymphatics
c. Merkel cells
d. Adipose cells
2. Select the correct description of elastic fibres:
a. Comprise of 10% of the fibres in the dermis
b. Are the major proteins of the dermis and 90% of the dermal fibres
c. Are derived from mesenchyme
d. Are most often found around the blood vessels
3. Collagen:
a. Is synthesised by keratinocytes
b. Is arranged in parallel bundles in the papillary dermis
c. Has an extensive network throughout the dermis
d. Provides tensile strength
4. Select the correct fun
a. Return deformed skin to its resting state
b. Bind water; control flow of solutes
c. Express adhesion molecules
d. Produce collagen, elastin, ground substance and fibronectin
5. Which structure of the basement membrane zone contains a "selectively permeable membrane":
a. Sublamina densa
b. Lamina densa
c. Basal cell membrane
d. Lamina lucida
6. Nerves:
a. As a result of hypothalmic control, constrict and dilate with heat
b. Contain an extensive network of sensory and autonomic nerve fibres
c. Are best developed on areolae and tunica dartos of scrotum
d. Cause erection of hair on exposure to cold or fear
7. Select the correct description of the microvascular unit:
a. Is lined by endothelial cells; sheathed in collagen; surrounded by pericytes, dendritic macrophages and T-lymphocytes
b. Consists of an amorphous structure surrounded by microfibrils
c. Consists of cross-linked triple helix of polypeptide chains
d. Contains smooth muscles
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