Delta Derm formatives Flashcards
Which glands are attached to the hair follicles in the skin
Sebaceous glands
What are the commonest sweat glands on the face
Eccrine
Are hemi-desmosomes present in the dermis
No
Are fibroblasts present in the dermis
Yes
Which cytotoxin is associated with MRSA
Panton Valentine Leukocidin
Where are langerhans cells formed
Bone marrow
Which porphyria is suggested by symptoms of red skin and tingling
Erythropoietic Protoporphyria
Which cells in the skin carry out vitamin D metabolism
Keratinocytes
Where is energy stored in the skin
Subcutaneous fat
Where does epidermal proliferation take place
Basal layer
Which epidermal layer contains Odland bodies
Granular layer
Which epidermal layer has polyhedral cells with lots of desmosomes
Prickle cell layer
Which poryphria is suggested by symptoms of blistering, skin fragility and excess hair growth
PCT
How many days does it take for a cell to migrate from the basal layer to the keratin layer
28 days
What is being described:
semisolid emulsion of oil in water, contains preservative, cosmetically acceptable, non greasy
Cream
What is being described:
semisolid grease/oil, no preservative, less cosmetically attractive, greasy
Ointment
What is being described:
thickened aqueous solutions
Gel
What is being described:
semisolids, stiff, greasy, difficult to apply, often used in cooling, drying, soothing bandages
Paste
Investigation for ring worm
Skin scraping for microscopy and culture, and woods light
Investigation for Scabies
Skin scrapings for microscopy
When is a very potent topical steroid used for chronic plaque psoriasis of the trunk and limbs
Not used
HPV types 1-4 are responsible for what
Warts/ Verucca’s
HPV types 6 & 11 are responsible for what
Genital warts
Are creams or ointments more likely to cause contact sensitisation and why
Creams
Because they contain preservatives
Define Breslow thickness
The depth from the granular layer of the epidermis to the deepest melanoma cell
When excising skin, which method provides the best aesthetic result
An elliptical excision with the scalpel cutting at 90 degrees to the surface of the skin
Which ONE of the following statements is TRUE regarding mucosal membranes:
They are rarely affected by skin diseases
They are usually keratinised Incorrect
They are highly specialised for function
They do not have any sensory function
They do not contain glands
They are highly specialised for function
What is a fluid-filled lesion under 0.5cm
Vesicle
What is a compressable dermal swelling called
A wheal
What is a lesion with raised edges and a flatter surface (> 0.5cm) called
Plaque
What is a nodule containing semi-solid material called
Cyst
What is a fluid-filled lesion over 0.5cm called
Bulla
Describe a papule
Localised elevated area < 0.5cm
Describe a nodule
Localised elevated area > 0.5cm
What are accumulated fragments of keratin layer on top of a lesion called
Scale
Describe lichenification
Thickening with increased skin markings
What is the difference between an ulcer and an erosion
Erosion is a superficial break in the epidermis
An ulcer is a deeper break into the dermis
What is a linear split in the epidermis called
Fissure
