Chapter 4 Tissues (Lab Study Guide) Flashcards
Types of Tissue
1.) Epithelial
2.) Connective
3.) Muscular
4.) Nervous
how is epithelial tissue classified
number of layers
shape of cells
simle epithelia
single layer
stratified epithelia
many layers
squamous epithelia
flat/oval shape
cuboidal epithelia
cube shape
columnar
column shape
simple squamous
rapid diffusion / filtration
air sacs of lungs
heart/blood vessels
simple cuboidal
kidney tubules
small glands
ovaries
simple columnar
intestines
stratified squamous
epidermis of skin
esophagus
mouth
stratified cuboidal
sweat glands
mammary glands
stratified columnar
male urethra
transitional epithelia
stratified with many different cell shapes
where organs constantly move
bladder
pseudostratified ciliated columnar epithelia
looks like many but is really one
cilia helps move substances along a surface
trachea / bronchi of lungs
parts of connective tissue
ecm:
1.) ground substance
2.) fibers
cells
1.) fibroblasts (secrete fiber (ecm) in CT proper)
2.) chondrocytes (secrete ecm in cartilage)
types of connective tissue studied (we only did two)
connective tissue proper
cartilage
types of fibers
collagen
elastic
reticular
collagen fibers
thickest and strongest
elastic
thin
ability to stretch / recoil
reticular
shortest and thinnest
ground substance
gel like / bone like substance fills space of cells
types of connective tissue proper
loose and dense
types of loose connective tissue proper
1.) loose areolar
2.) loose adipose
types of dense connective tissue proper
1.) dense regular
2.) dense irregular
description of loose areolar
contains many different fibers
function of loose areolar
universal packing
(supports and binds other tissues)
MOST ABUNDANT
location of loose areolar
most abundant, very widespred
subcutaneous layer of skin
description of loose adipose
signet rings
triglyceride pushes nuclei to side of the cell
mdae of adipocytes
function of losoe adipose
cushioning
energy storage
insulating
location of loose adipose
yellow bone marrow
mammary tissue
description of dense regular
densely packed with collagen fibers
fibers run in same direction (parallel)
function of dense regular
strength in one direction
location of dense regular
tendons and ligaments
ligaments are…
bone to bone
tendons are…
muscle to bone
description of dense irregular
densely packed with collagen fibers
fibers run in different directions
function of dense irregular
strength in many directions
location of dense irregular
dermis of skin
perichondrium (around cartilage)
periostium (around bone)
is cartilage vascular
no!
is epithelial vascular
no!
is connective itssue proper vascular
yes!
how does epithelial tissue and cartilage recieve nutrients
diffusion from connective tissue proper
diffusion from surrounding environment
cells in cartilage
chondrocytes
lacunae
little caves (small cavity) that hold chondrocytes
how are chondroblasts found
in pairs
types of cartilage
hyaline
elastic
fibrocartilage
description of hyaline
appears glossy
(no fibers visible)
most abundant
function of hyaline
flexibility / reduce friction
location of hyaline
end of long bones
where sternum meets ribs
nose
description of elastic
resembles hyaline but has more elastic fibers
function of elastic
strength and flexibility
location of elastic
external ear
epiglottis
desription of fibrocartilage
resembles dense regular but has lacunae’s
function of fibrocartilage
support and flexibility
in places under high stress
location of fibrocartilage
intervertebral disks
knee joint
function of simple squamous
rapid diffusion / filtration
function of simple cuboidal / columnar
secretion / absorption
function of stratified epithelia
protection / barrier
function of connective tissue
binds, supports, and protects other tissues
function of muscle tissue
movement
function of nervous tissue
rapid communication / control
apical
top layer of epithelia
exposed to external
basal
bottom layer of epithelia
goblet cells
produce mucin
what is mucin
combines with water to form mucus
cilia vs microvilli
cilia: microtubules
microvilli: extensions of membrane
cilia function
sweep things across membrane
microvilli function
increases surface area for absorption
function of transitional epithelia
protection & stretching
shape of transitional epithelia
round / pear shape when not stretched
squamous when stretched
lamina propia
below basement membrane
adipocytes
individual adipose cells
make up adipose tissue (NOT fibroblasts)
signet ring
shape of adipose
triglycerides pushnucelus to side of ring
resembles simple squamous but less nuclei