Cells that detect deep pressure and vibration

Dermis is the deeper layer of the skin that develops from the mesenchyme

Epidermal cell which is responsible for protection of the skin and underlying tissue from heat, microbes, and chemicals.

Epidermis is the superficial layer of the skin that develops from the neural crest cells.

Functions include Recognition, Uptake, Processing & Presentation of antigens to sensitized T lymphocytes.

Granular layer consists of large polyhedral cells containing fine tonofibrils.

Horny layer is made up of closely packed dead cells containing keratin

Layer of the epidermis where the nucleus of the keratinocyte is shed.

Origin of the Melanocyte

Regulate body temperature through evaporation (perspiration)

Spinous layer contains small keratohyaline granules in its cells.

The dermis is thickest at the

The layer of the epidermis which is uniquely found on acral skin.

The skin and its associated structures, hair, nails, and glands are derived from the surface ectoderm.

What is the congenital absence of hair?

Condition in which accessory nipples have formed resulting from the persistence of fragments of the mammary line

globally reduced or absent pigmentation in the skin, hair and eyes.

Condition in which the lactiferous ducts open into the original epithelial pit that has failed to evert

Provides strength and flexibility to the skin

Present only in the finger tips, palms of the hands and soles of the feet

Produces the pigment melanin which contributes to skin color and absorbs UV light

Detection of sensations of touch, shape and texture

Essential for discrimination of the fine spatial details

At what week is the fetus covered by downy hair or lanugo

The Stratum lucidum is present in the lips

Which signaling pathway is implicated in differentiation of melanoblasts into melanocytes

How many days does it take for skin to have cellular turnover?

Large macule, 1 cm or greater in diameter

Evanescent, surrounded by a flare or macular erythema

Dried serum, pus or blood, usually mixed with epithelial and sometimes bacterial debris

Composed of new connective tissue that has replaced lost substance in the dermis or deeper parts resulting from injury or disease

Undergoes mitosis and enables skin to repair.

Found in Stratum spinosum and contains Birbeck granules.

Which of the following is most implicated in skin squamous cell carcinoma?

Which structure is responsible for the formation of "goose skin"?

Peg-like projections of upper region of dermis

Secretion that lubricates hair and skin

crescent white part of the nail

thin layer with keratinocytes become filled with keratin, flatten and lose their nuclei

Fungal infection of the nails

Instrumental in dispelling the theory of spontaneous generation of germs and proving that it existed.

The first to differentiate between infected and diseased wounds compared to non-infected wounds.

The 1st to use phenol in sterilizing instruments and the OR

Peak time of neutrophil invasion

Achieve significant numbers in the wound by 48 to 96H

serves as scaffolding for the migration into the wound of inflammatory cells

The most abudant protein in the body

Involves re-epithelization

Greater degree of tissue loss and granulation tissue must be built

A moist or even wet wound environment is critical to normal wound healing.

Cell involved in 1 week post injury

major component of extracellular matrix in the skin

Becomes more prominent and important during the repair process

Phase where coagulation cascade occurs.

Collagen lends ______ to the skin

The papillary layer of the dermis is most closely assoc. with which layer of epidermis

The papillary and reticular layers of the dermis are composed mainly of ______.

Which of the following is not a function of the hypodermis

In response to stimuli from the Sympathetic nervous system, the arrector pili ________.

The hair matrix contains

Eccrine sweat glands ________.

Sebaceous glands are

Similar to the hair, nails grow continuously throughout our lives. Which of the following is furthest from the nail growth center?

whitish paste; protects kin against macerating action of amniotic fluid

Characterized by thick adherent silvery scales with marked underling erythema.

Atopic Dermatitis has ___ stages

Clustered thin walled vesicles in a dermatomal distribution

Dew drop on a rose petal appearance

Loss of melanocytes secondary to immunologic activity

Has a significant correlation with neurofibromatosis

sclerotic disorder that involves areas beyond the initial injury

Abnormal shedding and accumulation of the stratum corneum in perceptible flakes

facial ringworm

fine scaling at periphery of lesion

Phases of Chicken pox lesion

Honey colored crust lesions

fluid filled lesion

Relieved by dependence, aggravated by elevation

Relieve by elevation, aggravated by dependence

triggered by trauma, stress or sunburn

Most common skin cancer worldwide

hand ringworm

Associated with allergic rhinitis, hay fever and skin hyperactivity

Painful genital ulcerative disorder

usually occurs 30% post partum after 3-6 months

creamy white or off white patches

easily rupture leaving large eroded surfaces

fishlike/ platelike scales

also play significant role in regulating angiogenesis and matrix deposition and remodelling

Factors of systemic wound healing except for

Wound edge are not approximated

Lower risk of infection and minimal scarring

precedes and initiates inflammation with the ensuing release of the chemotactic factors from the wound site

Caused of delayed healing EXCEPT

Usual mechanism for the formation of a chronic wound.

8-10 cell layers held together by desmosomes

Stretchmarks are dermal tears from mild stretching

inhibits excessive loss of water and urea

it provides most the hair's weight.