3 Layers of Skin

outer- epidermis, middle- dermis, inner- hypodermis

Squmaous tissue

makes up the epidermis layer, single, flat, scale-like cell that is part of simple squamous epithelium

Basal Layer (Stratum basale)

cells undergo division

Living Layer (Stratum Spinosum)

new, alive

Keratinizng ( stratum granulosum)

dying

Cornified (stratum cornified)

dry keratinized cells

Callous ( stratum luicidum)

5th layer of thick skin, providing additional protection and reducing friction. Only on soles of feet and palms of hands.

Sebaceous

oily

Sudoriferous

sweat

Epidermis Derivatives

Sebaceous, hair, nails

Dermis

Has nerves, vascular tissue

Hypodermis

innermost, vscular, adipose, subcutaneous layer

Skeletal System Function

Support, function, protection, movement, storage, hemopoiesis

Types of Tissue

connective, cartilage

Ossefication

Can repair themselves

Synarthrosis

No movement

Amphiarthrosis

Little movement

Diathrosis

Free moving

Cutane/o

skin

Derm/o

skin

Hidr/o

sweat

Hirsut/o

hair

Kerat/o

horny layer

Lip/o

fat

Melan/o

black

myc/o

fungus

Onych/o

Nail

Py/o

pus

Rhytid/o

wrinkles

Seb/o

oily - sebum

Uritic/o

rash, hives

Xer/o

dry

Ankyl/o

stiff / bent

Arthr/o

joint

Chondr/i

cartilage

Cost/o

rib

Crain/o

skull

-desis

binding / fixation

Lord/o

curve / sway

-lysis

dissolve / breakdown

Myel/o

spinal cord / bone marrow

Oste/o

Bone

Scoli/o

curved

Spondyl/o

spine / vertebrae

What is the function of the integumentary system?

protection, vitamin D synthesis, regulates temp., sensation

Describe the layers of the epidermis

Epidermis - outer layer, avscular, squmaous cuboidal, columnar, stratified squamous, found in digestive system and other organs

Dermis- Middle layer has nerves, vascular tissue

Hypodermis- Innermost layer, vascula, adipose, subcutaneous, super fascia

What is the 5th layer of skin, only on soles of feet and palms of hands

stratum lucidum

List the epiderrmal derivatives

sebaceous, hair, nails

Describe the following condition

Jaundice - liver problem, yellow tint to eyes and skin

Alopecia- loss of hair

Cyanosis- loss of oxygen - blue

Difference

What do nerve fibers in skin do

monitor sensory receptors in dermis and epidermis

What is the difference between squamous, cuboidal, and columnar

squamous - more wide than tall

cuboidal- equal height and width

columnar- taller than wide

What layer of the skin has dry keratinized cells?

cornified layer (stratum corneum)

what protein makes your nails harden

keratin

How many layers of epidermis does the palm of your hand have?

5

What layer of the epidermis has 6-8 living cells?

stratum spinosum

This is a dark pigment that protects you feom the sn UV radiation

melanin

What gland contains oil and keeps your skin from drying out

sebaceous

What is the function of the skeletal system

support, protection, movement, storage, hemopoiesis

What would you find in the Axial skeleton

cranium, face, ear bones, hyoid bone. vertebrae, ribs, sternum

How many classified bones do you have

206

What is an immoveable articulation

synarthrosis - cranial bones

Which skeleton would you fine in yor body?

appendicular

Describe the outer layer of bone

Dense, contains circular rings of tissue that hold bone cells and canals for blood vessels

What is ossification

bone formation