Assessment of Skin, hair, and nails Flashcards
(136 cards)
What is the largest organ of the body?
Skin
Note:
- It is our physical barrier that protects us from the underlying tissues and organs from microorganisms, physical trauma, ultraviolet radiation, and dehydration.
- It plays a vital role in temperature maintenance, fluid and electrolyte balance, absorption, excretion, sensation, immunity, and vitamin synthesis.
- Provides identity to a person’s appearance, like fingerprints and thumbmarks.
- The skin is thicker on the palms of the hands and soles of the feet and is continuous on the mucus membranes at the orifices of the body.
The skin is composed of 3 Layers. What are these?
- Epidermis (Epidermal)
- Dermis (Dermal)
- Hypodermis (Subcutaneous Tissue)
This is the outermost layer of the skin that is consist of dead, keratinized cells which renders the skin to be waterproof.
Epidermis (Epidermal)
This is present on the epidermis hair, nails, dental enamel, and horny tissue composed of keratin.
Keratin
Epidermal layer replaced every how many weeks?
3-4 weeks
WHAT IS THIS?
- It undergoes cell division and contains melanin together with capillary blood flow, chromophores.
Stratum Spinosum and Basale
WHAT IS THIS?
- Brown pigment
- Major Determinant of the Skin
Melanin
This is the Inner layer of the skin. It contains elastic fibers, nerve endings, and lymph vessels. It is also the origin of sweat glands and hair follicle.
Dermis
Dermis is visible in the hands and feet, and it creates the unique pattern of friction ridges commonly known as what?
Fingerprints
No. of fingerprints?
Infinite
Note:
- NO 2 PEOPLE HAVE THE SAME FINGERPRINTS
This is found in the dermis layer of the skin. It is attached to hair follicle and is present over most of the body.
Sebaceous glands
The sebaceous glands secretes oil which is called __________.
This waterproofs the hair and skin.
Cebum
What are the two types of sweat glands in the skin, both located in the dermis but with different functions?
Eccrin and Apocrine
WHAT IS THIS?
- Found all over the body (entire skin), especially on the palms, soles, and forehead.
- Produce a clear, watery sweat primarily for thermoregulation (cooling the body).
- Open directly onto the skin surface.
- Active from birth.
Eccrine glands
WHAT IS THIS?
- Found in hairy areas like the armpits, groin, and around the nipples.
- Secrete a thicker, milky fluid containing proteins and lipids.
- Open into hair follicles.
- Become active during puberty and are linked to body odor when bacteria break down the sweat.
Apocrine Glands
WHAT IS THIS?
- This is a combination of sweat and skin bacteria.
Body Odor
Apocrine is link to what?
Menstrual cycle
This is the loose connective tissue that stores fat as an energy reserve, provides insulation to conserve internal body parts, and is a pathway for the nutrients and removal of waste products to and from the skin.
Subcutaneous tissue
FAMILIARIZE ONLY!
“What are the Functions of the skin?”
- Protective barrier against invasion from environmental hazards & pathogens. (1st line of defense)
- Protection for underlying organs
- Temperature regulations / heat control / Vit D synthesis
- Sensory signals
- Organ of excretion for substances such as water, salts & nitrogenous wastes
- Indicator of nonverbal language & emotions via blushing & facial expression
- Purpose of identification via fingerprints & birthmarks
Give 4 Functions of the Skin
(Notes ni ma’am sa slide)
- Protection from microorganisms
- Protection from trauma
- Protection from UVR (Ultraviolet rays)
- Protection from dehydration
WHAT IS THIS?
- This is consist of keratinized layer found over much of the body, except for lips, nipples, soles of feet, palms of hand, labia minora, and penis.
Hair
FAMILIARIZE ONLY!
“What are the Functions of the Hair?”
- Provides warmth, protection and sensation to the underlying systems
- Vellus hair enhances tactile sensation, thermoregulation
- Hair on the head protects the scalp
- Other hair (filter dust & other airborne debris)
- In other countries, status symbol of beauty and wealth
What are the 2 Types of Hair found on the human body?
- Vellus Hair (Peach fuzz)
- Terminal Hair
Note:
OTHER HAIRS are
- Burnik - buhok sa pwet
- Tutsang - buhok sa ilong
What type of hair is this?
- Fine, soft, and unpigmented (light-colored).
- Covers most of the body except for the lips, palms, and soles.
- Provides slight insulation and protection.
Vellus Hair (Peach Fuzz)