, Animal Tissues
·
tissues =
groups of similar cells
4
types
:
epithelial , connective nervous muscle
-
, ,
-each has a special role
·
epithelial
covering ,
lightly packed cells
-
-
I cell thick-diffusion
always rests basement membrane
-
on a
-
Eg :
Squamous ciliated stratified cuboidal columnar
, ,
, ,
nerve
·
cells =
neurons
; detect stimulus
(stand on pin) a react to environment lift foot off
-can't be repaired or
replaced
Eg : motor , sensen , inter
-
·
muscle
contractive cells /
cause movement by contracting relaxing
·
,
-
Eg :
skental/voluntary Smooth/involuntary , ,
cardiac
·
connective
-
mites /supports body
·
fills space-bubble wrap cells in a matrix
,
·
Eg: Proper (jelly) ; liquid (blood) ; supporting (plastic-cartilage; herd-bone)
Epithelial Tissue
Squamous
flattened
Go
·
cells
nuc ·
·
pavement-lock like paving
no intercellular space
found in : functions :
mouth ·
protection (no air space)
·
oesophagus ·
Dermeable diffusion/gasuous exchange
=
-
lining capilkres ·
smoutha friction free
·
alveoli in lungs
Cuboidal
cell
·
cuboid shape
nucleus
=
-
b .
numbrane
cur tissue ·
·
central ,
large nucleus
·
tissues =
groups of similar cells
4
types
:
epithelial , connective nervous muscle
-
, ,
-each has a special role
·
epithelial
covering ,
lightly packed cells
-
-
I cell thick-diffusion
always rests basement membrane
-
on a
-
Eg :
Squamous ciliated stratified cuboidal columnar
, ,
, ,
nerve
·
cells =
neurons
; detect stimulus
(stand on pin) a react to environment lift foot off
-can't be repaired or
replaced
Eg : motor , sensen , inter
-
·
muscle
contractive cells /
cause movement by contracting relaxing
·
,
-
Eg :
skental/voluntary Smooth/involuntary , ,
cardiac
·
connective
-
mites /supports body
·
fills space-bubble wrap cells in a matrix
,
·
Eg: Proper (jelly) ; liquid (blood) ; supporting (plastic-cartilage; herd-bone)
Epithelial Tissue
Squamous
flattened
Go
·
cells
nuc ·
·
pavement-lock like paving
no intercellular space
found in : functions :
mouth ·
protection (no air space)
·
oesophagus ·
Dermeable diffusion/gasuous exchange
=
-
lining capilkres ·
smoutha friction free
·
alveoli in lungs
Cuboidal
cell
·
cuboid shape
nucleus
=
-
b .
numbrane
cur tissue ·
·
central ,
large nucleus
