LAB Practical 1 Flashcards
simple squamos epithelium
one layer, flat and thin, secretes the lubricating substances and located in the the lining of the heart and air sacs on the lungs
simple cuboidal epithelium
cube shape, one layer
secretion, surface of ovaries
simple columnar epithelium
one layer, column shape, secretion of mucus, uterus
psedostratified columnar epithelium
column shape, one layer (nucleus can make it look multi-layered)
secretion, sperm carrying ducts
stratified squamos epithelium
mulitple layers, lokoks like a scale, flat
protection
lining of mouth and vagina
stratified cuboidal epithelium
multiple layers, cells look like cubes
protection
mammary and salivary glands
stratified columnar epithelium
multiple layers, colums (basal layer looks more cuboidal)
protection
male urethra
transitional epithelium
surface cells in a dome shape, looks like stratified cuboidla and stratified squamous
stretched readily and permitts distention of urinary orgns
urinary bladder
connective tissue proper: loos areolar
not firnly compacted (has all three fibers) (looks like hair)
wraps and cushions organs
found around organs
connective tissue proper: loose-adipose
looks like cavities, large fat droplets
supports and protects
breast
connective tissue proper: dense-regular
wave like structure
withstands stress
ligaments
connective tissue proper: dense-irregular
zebra like patterm (beef)
withstands stress and tension
dermis of skin
connective tissue dense-elastic
wave like, very dark, condensed
allows recoil of tissues
within ligaments and walls of large arteries
hyaline cartilage
lacunae (network is invisible)
resists stress
nose cartilage
elastic cartilage
lacunae, more obvious network, stones
maintains shape
external ear
fibrocartilage
thick fibrous, nucleus not stained
shock absorption
intevertebral discs
comapct bones
concentric circles
supports and protects
bones
connective tissue proper loose-reticular
bark like
forms soft internal skeleton
found in bone marrow
blood
red blood cells
transport respiratory gas, waste, nutrients
bloos vessels
smooth muscle
uninucleate, no striations, spindle like
involuntary control
walls of hollow organs
skeletal muscle
multinucleate, parallel to one another, striations
voluntary movement
skeletal muscles attached to the bones or skin
cardiac muscle
uninucleate, interdigitate and intercalcated disks, striations, branched
involuntary control
walls of heart
nervous tissue
spiky shape, short projections and long projections (webbing)
neurons conduct waves and glial support, protect, and insulate
brain, spinal cord, nerves
mesenchyme
where all cells are derived from
collagen fibers
white, mos abundant
elastic fibers
yellow
reticular fibers
fine collagen
papillary layer
most superifical region of the dermis layer, the syrface froms dermal ridges which forms impressions on the epidermal surface called epidermal ridges, contains tactile corpsucles
reticular layer
deep layer, composed on dense irregular CT, has cleavage lines
tactile epithelial cells
touch receptors in the epidermal-dermis junction
tactile corpsucles
papillary layer of dermis
root hair plexus
wrapped around base of hair follicle, simulated when hair bends
lamellar corpuscles
reticular layer, responds to deep pressure
keratinocytes
most abundant epidermal cells, produces a protein called keratin
melanocytes
produces pigment called melanin, protects from UV rays
dendritic cells
key role in immune response
sudoriferous glands
coiled tubular multicellular exocrine glands
eccrine sweat gland
water, salt, and urea, part of the body regulating system, secretes sweat when external temp or body temp is high
apocrine sweat gland
secretes viscous, yelllowish fluid onto hair follicles, associated with body odor, stimulated by sex hormones
blackheads
popped whiteheads that resulted in oxidation
acne
active infection of sebaceous glands
merocrine
exocytosed into a duct lines with epithelial cells and then into bodily surfaces, no cellular components
holocrine
secretions are produced in the cytoplasm and released by cell lysis, secreting cell destroyed in process
whiteheads
sebum accumulated in the ducts of the sebaceous glands
ceruminous glands
specialized apocrine glands, in external ear canal, secrete ear wax
mammary
specialized aprocrine sweat glands, located in breasts, secretes milk
arector pili muscles
attached to hair follicles
nail matrix
nail growth
hair shaft
projecting from skin
hair root
enclosed in follicle
hair bulb
epithelial cells at base of follicle
stratum basale
deep, has melanocyes, keratinocytes, tectile epithelial cells
stratum spinosum
several layers, contains tonofilaments, contains epidermal dendritic cells
stratum granulosum
3-5 layers, lamellated granules (lipids make waterproof), keratohyaline granules (keratin makes it tough)
stratum lucidum
translucent layer, palms and soles (thick skin)
stratum corneum
superficial, 20-30 layers od dead cells, replaced every 3-4 weeks
muscle and ligament attachment sites
tuberosity, crest, trochanter, line, tubercle, epicondyle, spine, process
joints
head, facet, condyle, ramus
opening for passage of blood vessels and nerve
groove, fissure, formamen, notch
others
meatus, sinus, fossa
