TISSUES PART 1: GUIDED NOTES
Name: _______________________ Class: _________
Major Tissue Types

Epithelial Tissue –

Connective –

Muscular –

Nervous –
Epithelial Tissue Function
Epithelial tissues lines all body surfaces and cavities
Functions:




Special features of epithelial tissue:

Cells are __________________________

______________________ attached to ___________________, _______________________ is free.

_______________________– no blood supply. Nutrition and gases diffuse from underlying connective
tissue

Excellent ______________________ability. Contain multi- and uni-potent stem cells.
How does each special feature relate to the functions of the tissue?
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Classifying Epithelial Tissue
 Simple squamous epithelium
A single layer of
____________cells,
specializing in rapid
diffusion and filtration
Found in: alveoli of lungs,
walls of capillaries, kidney
glomeruli and
serosae
2
 Simple cuboidal epithelium
A single layer of
_______________________
cells
Found in: glands,
kidney tubules, ovaries
 Simple columnar epithelium
A single layer of _______________
shaped cells
Often contain mucus- producing ____________
____________ and / or cilia
Found in: digestive tract (unciliated),
bronchi (ciliated), and
uterine tubes (ciliated)
 Pseudostratified columnar
epithelium
A single layer of cells
______________________
Often contain cilia and Goblet cells
Found in:
respiratory tract
3
 Stratified Squamous Epithelium
_____________________of epithelial
tissue.
Flattened and atrophied (‘dead’) at the
apical edge; but can be rounder at basal
edge.
Apical edge sloughs off and is replaced.
Function: protection from wear & tear
Found in skin, mouth, esophagus
 Transitional epithelium
Cells can ______________________,
allowing the tissue to stretch.
Apical cells appear round when tissue is
relaxed, and flat with tissue is stretched.
Found in urinary tract.
Connective Tissues
Most abundant type of tissue
Functions:
1.
2.
3.
All connective tissues are made up of _____________________________________ and
_____________________________________.
The extracellular matrix is secreted by the cells.
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The extracellular matrix is composed of
 ____________________________________ (water, adhesion proteins (‘glue’), polysaccharide
molecules). The ground substance can be fluid or firm depending on how many polysaccharides
there are.
 __________________________ the types and amounts vary.
 ____________________– strongest
 ____________________ – stretchable
 ____________________ – netlike & supportive
Bone (osseous tissue)
 Hardest connective tissue
 ________________________________
found in lacunae
 Functions: __________________________,
______________________,
_________________________
 Contain collagen fibers and calcium salts
Cartilage

Softer & more flexible than bone

____________________________________
found in lacunae

3 types of cartilage, each containing different
proportions of the 3 fibers
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
________________: ends of bones

________________: vertebrae

________________: external ear
Dense Connective Tissue

Forms tendons, ligaments, and layer beneath skin

____________________________________ between collagen fibers
Loose Connective Tissue


Areolar Tissue _______________________________
Adipose tissue (________________)

Most common connective tissue!

_______________________,
_______________________, and
______________________________

Consists of ________________ and
________________ (fibroblasts and
immune cells) scattered loosely in a
fluid containing water, nutrients, salts
and waste

Very little matrix, mostly
_______________________________

Each cell filled with oil

Functions:
______________________________,
_______________________________
_______________________________
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Blood
•
Consists of cells within a matrix:
_______________________.
•
Like other connective tissues, blood
does have fibers, but these are only
involved in clotting.
•
Functions:
__________________________,
______________________, and
__________________________
throughout the body
Connective Tissue Flow Chart
Muscular Tissue
Function: ________________________________________________
Special Features:
1. Possess ___________________________________ (actin & myosin) which slide past each other to
contract the cell
2. _________________________________ (many blood vessels) to supply energy and oxygen
Skeletal Muscle

_________________________________ of the
body

Skeletal b/c attached to bones (mostly)

______________________________________
______________________________________
_______________________________________
Cardiac Muscle

Skeletal muscle cells are called muscle fibers
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
Found in heart

__________________________________
(have to squeeze)

Contain _____________________________ –
allow for rapid spread of electrical impulse for
coordinated contraction
Smooth Muscle

Found in walls of hollow organs
(_________________________,______________,
_______________________,
_______________________)

Slowly squeezes and relaxes (in all directions) to
propel substances through

Motion called _________________________
Nervous Tissue

Function: ________________________________
________________________________________

Consists of _____________________ and
___________________________ (that insulate,
support and protect neurons)

Neurons have long processes to carry impulse to
distant areas.
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