Summary Biology Mammalian Tissue Notes

Chemical level: -
simplest level within structural hierarchy . includes tiniest building blocks of matter atoms which combine to form molecules
,
molecules
-
combine to form organelles



made of

Cellular level:
matter
up smallest unit
living
-


of


individual have function but not size a shape
-
cells may
common



-
Each cell = own task




Tissue level: -
groups of similar cells that have a common function


must include dif OF cells
-
2 types .




-
Epithelial ,
Nerve
,
muscle
,
connective


↳ has a role




-
connects
-
unites a supports part of the body
-

fills space between tissue

-
consists of cells in a matrix




Epithelial Tissue Nerve Tissue Muscle Tissue Connective Tissue
A



e §
et •
cells are called neutrons • contractile cells -
most common connective
tissue
•
covering tissue
•
Responsible for stimulus ( Receptors ) mechanical work
do
body
•




( effectors ) the environment -
found all over
•
consists of tightly packed cells a reacting
movement by like
cause

Proper
-



Jelly
•
-
matrix =



•
Usually one layer thick • Neurons can't be replaced or Repaired contracting a
relaxing areolar
-
EXAMPLE dense , yellow
.



:
,
mmmm
• forms a barrier
EXAMPLES EXAMPLES

•
Always rests on a basement membrane -
motor -

voluntary muscle ( skeletal )
sensory
-




( smooth )
EXAMPLES -

inter -

nervous
-

involuntary muscle -
blood
matrix
cardiac muscle
-
cells float in liquid
-

squamos -




-
cubodidl ( plasma )
-
columnar Liquid -
EXAMPLE :
RBC WBC platelets
, ,
-
ciliated mmmm
-
stratified



-


structurally supportive
-
endoskeleton ,
bone ✗ cartilage

matrix __
hand or plastic
Supporting
-




-
EXAMPLE : bone , cartilage
mmmm