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Tissues
“wElcome to the tissues
World”
DIRECTED COURSE:
Second grade
B:
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Cardona &$ Rui' D$ #ele' C(
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1What is a Tissue2
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A group of closely associated
cells that perform related
functions and are similar instructure. Those structures are
constituted by an organized cell
set equeal evenly distribuited,
with a coordinated physidogical
behavior and commonembryonic, it’s called histology:
science that studies these
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organic tissue.
Animal Tissues
-pithelium: The primary
functions of epithelial tissues
are: !-"rotect the tissues thatlie beneath it from
radiation,desiccation,to#insmin
vasion by pathogens,and
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physical trauma$ % the
regulation and e#change of
chemicals between theunderlyng tissues and body
cavity, & to provide sensation. '
(ecretion of hormones into the
blood vascular system
)onnective Tissue
)onnective tissue *)T+ is one of
the four types of
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biological tissue that supports,
connects, or separates dierent
types of tissues and organs inthe body.
uscle Tissue
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uscle is a soft tissue found in
most animals. uscle
cells contain protein lamentsof actin and myosin that slide
past one another, producing
a contraction that changes both
the length and the shape of the
cell.
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/ervous Tissue
/ervous tissue is the main
component of the two parts ofthe nervous system$
the brain and spinal cord of
the central nervous
system*)/(+, and the branching
peripheral nerves of
the peripheral nervous
system *"/(+, which regulates
and controls bodily functions
and activity.
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"lant Tissues
"arenchyma: In
3lants 3arench4ma is the ground
tissue o5 nonwood4structures
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)ollenchyma: enchyma tissue is
composed of elongated cells
with irregularly thic0ened walls.
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They provide structural support,
particularly in
growingshoots and leaves
pidermis: is a single-layered
group of cells that covers
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plants1 leaves, 2owers, roots
and stems.
Trichomes: are ne outgrowths
or appendages on plants,
algae, lichens, andcertain protists.
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eristematic Tissue:
A meristem is the tissue in
most plants containingundierentiated cells
*meristematic cells+, found in
zones of the plant where growth
can ta0e place
5oot 6airs: is a tubular
outgrowth of a trichoblast, a
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hair-forming cell on
the epidermisof a plant root.
A)T787T7(
!.9o the letters soup:
E N D O C R I N E
A N I A S A D EB D E U C N O I X A Q L D A S A E
F C G T H I A U O O N E O L O N M
A Q H H E G U E C N L Y C I O C S
N X I Y V M T A R E A D I V D R F
N H O R I I V T I M L J P A F E Y
M F G O N A D S N L R F B R A A G
Y N R I E N E J E Q Y N A Y G S A
Y D U D N O U S H X N A J G A B C
M A M M A R Y G L A N D S L O Y N
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A M S E B A C E O U S G L A N D S
L A C R I M A L G L A N D S O R A
S W E A T G L A N D S N G D R O O
A D R E N A L G L A N D S S M T E
ords:-ndrocrine, Thyroid,
4drenal ;lands, pancreas,
e#ocrine, salivary glands ,
sebaceous glands, sweatglands, lacrimal glands ,
mammary glands.
A)T787T< %
%.)onnect the parts:
=se the words and places.
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