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68 terms

LAB TEST 2

STUDY
PLAY
Basale
epidermal region exhibiting most rapid cell division; location of melanocytes and merkel cells
Corneum
dead cells; scale like; full of keratin
Granulosem
contains lamellated granules and keratohyaline granules; upper border of this layer cells are beginning to die
Lucidum
translucent cells in thick skin containing keratin fibrils
Spinosum
mitotic cells filled with intermediate filaments; area where weblike pre-keratin filaments first appear
Papillary Layer
superficial dermal layer responsible for fingerprints; region of areolar connective tissue
Recticular Layer
deepest skin (dermal) layer; dense irregular connective tissue; contains arteries, veins, sweat, and sebaceous glands
Epidermis
major skin area that produces derivatives (hair and nails)
Dermis
vascular region of the skin
Arrector Pilli
tiny muscles, attached to hair follicles, that pull hair upright during fright or cold
Cutaneous Receptors
specialized nerve endings that respond to temperature, touch, etc.
Hair
primarily dead/keratinized cells
Hair Follicle
sheath formed of both epitheleal and connective tissue
Nail
has a luna and a cuticle
Sebaceous Glands
oil gland; found everywhere on body except palms and soles; produces oily accumulation; secretes lubricant for hair and skin
Apocrine Sweat Gland
less numerous type of sweat gland; found in pubic and axillary
Eccrine Sweat Gland
sweat glands with a role in temp control; found everwhere on body
Diaphysis
made of compact bone; term for shaft
Endosteum
lines canals of spongy and compact bone; major submembranous site of osteoclasts
Epiphysis
contains spongy bone in adults; proximal and distal on either side of shaft
Periosteum
outer layer of bone; major submembraneous site of osteoblasts
Canaliculi
minute canals connecting osteocytes to an osteon
Central Canal
longitudinal canal carrying blood vessels, lymphatics, and nerves
Concentric Lamellae
layers of bony matrix around a central canal
Lacunae
site of osteocytes
Matrix
inorganic salts deposited in organic ground substance
frontal
forehead bone
zygomatic
cheekbone
mandible
lower jaw; site of mental process
nasal
bridge of nose
palatine
posterior bones of the hard palate
parietal
much of the lateral and superior cranium
occipital
most posterior part of the cranium; condyles here articulate with the atlas
sphenoid
bat shaped bone that forms cranial floor; site if sella turcica
lacrimal
tiny bones bearing tear ducts
maxilla
anterior part of hard palate
ethmoid
superior and medial nasal conchae formed from its projections; site of cribriform plate; bears cocks comb
temporal
site of styloid and mastoid process; middle ear found here
Four bones containing paranasal sinuses
ethmoid, frontal, maxilla, sphenoid
hyoid
small u-shaped bone in neck, where many tongue muscles attach
vomer
nasal septum
Cervical
vertebral type containing foramina in the transverse process, through which the vertebraes ascend to reach the brain.
axis
dens provides a pivot for side to side rotation of the first vertebra
atlas
supports the head; allows up and down movement of hear (rocking)
thoracic
transverse process faceted for articulation with ribs
sacrum
composite bone; articulates with the hip bone laterally
lumbar
massive vertebrae; weight sustaining
coccyx
tail bone; vestigial fused vertebrae
carpals
wrist bones
clavicle
bone of shoulder girdle; articlutes with and trasmits forces to bony thorax
humerus
arm bone
metacarpals
heads of these bone form the knuckles
phalanges
finger bones
radius
forearm bone
scapula
shoulder girdle bone, unnatached to axial skeleton
sternum
articulates with clavicle
trochlea
distal condyle of the humerus that articulates with the ulna
ulna
forearm bone; creates the large bump of the wrist
acetabulum
deep socket in coxal bone that recieves the head of thigh bone
femur
longest, strongest bone in the body
fibula
thin, laterla leg bone
tibia
heavy, medial leg bone
iliac crest
superior most margin of the coxal bone
ilium
fused with ischium and pubis to form coxal bone; part of pelvic girdle
metatarsals
bones forming foot
patella
kneecap
pubic symphisis
point where the coxal bones join anteriorly
pubis
fused with ilium and ischium to form coxal bone