Integumentary System Flashcards
is an organ system consist of skin and its accessory parts namely hair, nails, and exocrine glands.
Integumentary System
FUNCTIONS OF INTEGUMENTARY SYSTEM
S e n s a t i o n
H e a t r e g u l a t i o n
A b s o r p t i o n
P r o t e c t i o n
E x c r e t i o n
S t o r a g e of fats
The skin is consists of three layers, the
is not strictly a part of the skin, although the border between the hypodermis and dermis can be difficult to distinguish.
Epidermis and Dermis
Hypodermis
Cells of the epidermis
- for keratin
- for melanin
- for fighting pathogens
- for sensory
Keratinocytes
Melanocytes
Langerhans’ cells
Merkel’s cells
outermost layer of skin, provides a waterproof barrier and creates our skin tone
Epidermis
beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands
dermis
Contains 2 layer, somewhat flexible to withstand trauma
Seen in fingerprint
Dermis
2 layers of dermis
It is made up of a thin upper layer,
and thick lower layer called the
papillary dermis
reticular dermis
deeper subcutaneous tissue is made of fat and connective tissue. It is well-vascularized,
with loose, areolar connective tissue and adipose tissue, for fat storage and provides insulation and act as cushioning for the integument.
Hypodermis
Fat tissues
Adipose tissues
Layers of Epidermis
Stratum corneum
Stratum lucidum
Stratum granulosum
Stratum spinosum
Stratum basale
Also known as stratum germinativum; it is the deepest layer of
epidermis
Regeneration of cells through mitosis, *made up of dead cells
Stratum basale
spiny layer of the epidermis.
Stratum spinosum
composed of layers of flattened keratinocytes undergoing apoptosis. Likewise it has a lamellar granules that release lip-rich secretion for water- repellent sealant to a skin.
For protection
Stratum granulosum
Clear, clear in microscope
Lucid
thickened skin of the palms and soles, composed of 4-6 layers of flat dead cells.
Stratum lucidum
outermost layer of the epidermis, which is formed by the
accumulations of dead cells (keratinocyte) in the outermost epidermis,
that are eventually shed. The rate of cell division increases where the
skin is rubbed or where pressure is applied to the skin regularly,
causing growth of thickened area called calluses on the palms and
soles, and keratinized conical masses on the toes called corns.
Stratum corneum
growth of thickened area called ____ on the palms and
soles, and keratinized conical masses on the toes called ____.
calluses
corns
Layer of epidermis that is subject to trauma and friction
Stratum corneum
dermis is the part of skin also known as.
corium
This layer is made of loose, areolar connective tissue. , Its
superficial layer projects into the stratum basale of the epidermis
to form finger-like dermal papillae.
Papillary layer
much thicker layer of dermis consists of dense,
irregular connective tissue.
Reticular layer
This layer is well vascularized and has
a rich sensory and sympathetic nerve supply.
appears reticulated (net-like) due to a tight meshwork of fibers.
Reticular layer
It refers to a bluish cast to the skin and mucous
membranes.
cyanosis
is when there is a bluish
discoloration to your hands
or feet. It’s usually caused
by low oxygen levels in the
red blood cells or problems
getting oxygenated blood to
your body
Peripheral cyanosis
the skin and whites of the eyes
look yellow.
Jaundice
Jaundice occurs when there is
too much _____ (a yellow pigment) in the
blood, a condition called ______.
bilirubin
hyperbilirubinemia
came from the Greek
erythros, meaning red.
Erythema
It is redness of the skin or
mucous membranes,
caused by _______
(increased blood flow) in
superficial capillaries. It
occurs with any skin injury,
infection, or inflammation.
Erythema
hyperemia
Greek, meaning red
erythros
Common in pneumonia (oxygen level in color of nails)
Cyanosis
Found in disorder of liver - cirrhosis , hepatitis , stones in gallbladder
Jaundice
is a damage to body’s tissues caused by heat, chemicals,
electricity, sunlight, or radiation.
burn
Level of burns
First-degree burns
Second-degree burns
Third-degree burns
also known as “superficial burn” characterized by redness, minor swelling, pain and non-blistered skin.
First-degree burns:
more serious because the damage extends beyond the top layer of skin. with blisters and some
thickening of the skin.
Second-degree burns:
widespread thickness with a white, leathery appearance
Third-degree burns:
It is a genetic disorder that affects
(completely or partially) the color of skin, hair, and eyes due to the inability of melanocytes to produce melanin.
Anak araw
Albinism
Also called pressure ulcers and
decubitus ulcers. Its refer to injuries
to skin and underlying tissue resulting
from prolonged pressure on the skin.
Problem for paralyzed people
Bed Sores
Also known as acne vulgaris, which
occurs when hair follicles are clogged
with dead skin cells and oil from the skin.
It is characterized by blackheads or
whiteheads, pimples, oily skin, and
possible scarring
Acne
Other name for acne
Acne vulgaris
- bacteria in acne
Propionibacterium acnes
is a very contagious disease caused by the
varicella-zoster virus (VZV). It
causes a blister-like rash, itching,
tiredness, and fever.
(Varicella) Chickenpox
Virus in chicken pox
Varicella-zoster virus (VZV)
It is an acute infection
characterized by painful
inflammation of an
individual nerve and skin
surface that is supplied by
the nerve.
Shingles
It is caused by the
varicella-zoster virus, the
same virus that causes
chickenpox.
Shingles
A common and highly
contagious skin infection
usually affecting infants and
children.
Impetigo
• It usually appears as red
sores on the face, especially
around a child’s nose and
mouth, and on hands and
feet.
• The sores burst and develop
honey-colored crusts.
Impetigo
This is also known as rubella, which is a viral
infection that causes a red rash on the body,
fever, and swollen lymph nodes.
German Measles
It can be spread from person to person through
contact with droplets from an infected person’s
sneeze or cough.
German Measles
Other name for german measles
Rubella
It is a skin condition characterized by the extra skin cells that form
scales and red patches which are itchy and sometimes painful.
• This results from the rapid build up of skin due to speeds up life
cycle of skin cells.
Psoriasis
• Common signs and symptoms are:
• red patches of skin covered with thick, silvery scales;
• small scaling spots (commonly seen in children); dry,
• cracked skin that may bleed;
• itching, burning or soreness thickened, pitted or ridged nails; and
• swollen and stiff joints
Psoriasis
is a surgical procedure due to burns,
injury, or illness. It involves removing skin from one
area of the body and moving it, or transplanting it, to
a different area of the body.
Skin grafting
Two types of skin grafting
Split/partial thickness graft
Ful-thickness graft
It involves removing the top layer of the skin the epidermis
and middle layer of the dermis from the donor site and
transplanted to the damaged area.
Split/partial thickness graft
It involves removing all of the epidermis and dermis from
the donor site, and are usually taken from the abdomen,
groin, forearm, or area above the clavicle (collarbone).
Full-thickness graft
It refers to any damage or break in soft tissues of the body. It can be classified by several methods.
Wounds
Based on Soft Tissues Injury
Open wounds
Close wounds
A type of soft tissue injuries
that involve an external or
internal break in body tissue,
Open Wounds