TISSSUES

Question 1

Cells are specialized for particular functions

Answer 1

Body Tissues

Question 2

Four primary types of tissues

Answer 2

• Epithelium - covering
• Connective tissue - support
• Nervous tissue - control
• Muscle - movement

Question 2

Functions of Epithelia Tissue

Answer 2

*Protection
*Absorption
*Filtration
*Secretion

Question 3

• Found in different areas
  *Body coverings
  *Body linings
  *Glandular tissue

Answer 3

Epithelial Tissues

Question 3

Is a highly cellular tissue, meaning it is composed mostly of cells, with little matrix.

• covers or lines parts of the body such as SKIN ( outside or the lining ) and DIGESTIVE TRACT ( on the inside)

Answer 3

Epithelia Tissue

Question 4

Makes up glandular tissue such as sweat glands or pancreas

Answer 4

Epithelia Tissue

Question 5

Cell Shape of Epithelia Tissue

Answer 5

squamous (flattened)
cuboidal
columnar
stratified
simple (cells in single layer)

Question 6

Single layer of flat cells

Usually forms
membranes where
filtration or exchange
occurs

Lines lungs and
capillaries

Answer 6

Simple squamous

Question 7

Lines body cavities

Answer 7

serous membranes

Question 8

Single layer of cube-like cells

• Common in glands
  and their ducts
  *Forms walls
  of kidney tubules
• Covers the ovaries

Answer 8

Simple cuboidal

Question 9

*Single layer of tall cells that
fit closely together

*Often includes goblet cells,
which produce mucus

• Lines digestive tract

Answer 9

*Simple columnar

Question 10

Single layer, but some
cells are shorter than
others

• Often looks like a
  double cell layer
• Sometimes ciliated,
  such as in the
  respiratory tract
• May function in
  absorption or secretion

Answer 10

Pseudostratified
columnar

Question 11

Cells at the free edge are
flattened while cells close to
the basement membrane are
cuboidal or columnar

• Found as a protective
  covering where friction is
  common

Locations
* Skin
* Mouth
* Esophagus

Answer 11

Stratified squamous

Question 12

Two layers of cuboidal cells

• Stratified columnar
• Surface cells are columnar, cells
  underneath vary in size and shape
• Stratified cuboidal and columnar
• Rare in human body
• Found mainly in ducts of large glands

Answer 12

Stratified cuboidal

Question 13

*Shape of cells depends
upon the amount of
stretching

• Cells of the basal layer
  are cuboidal or columnar
  while those at the free
  surface vary
• Lines organs of the
  urinary system Figure 3.17f

Answer 13

Transitional epithelium

Question 14

one or more cells that secretes a
particular product – a secretion, which contains protein molecules in an aqueous fluid

Answer 14

Gland

Question 15

Two major gland types

Answer 15

Endocrine
Exocrine

Question 19

-Ductless

• Secretions are hormones – diffuse into blood (which means inside)

Answer 19

• Endocrine gland

Question 20

• Empty through ducts to the epithelial surface
• Include sweat and oil glands

Answer 20

Exocrine gland

Question 21

Found everywhere in the body
- Includes the most abundant and widely distributed tissues

Functions
*Binds body tissues together
*Supports the body
*Provides protection

Answer 21

Connective Tissue

Question 22

mostly water along
with adhesion proteins and polysaccharide molecules

Answer 22

Ground substance

Question 23

*Bone cells in lacunae
(cavities)

*Hard matrix of calcium
salts

• Large numbers of
  collagen fibers
• Used to protect and
  support the body

Answer 23

Bone (osseous tissue)

Question 24

Most common
cartilage

Answer 24

Hyaline Cartilage

Question 25

Is extracellular material and it usually consist of fibers and fluids, gel or solid ground substance.

Answer 25

Matrix

Question 26

3 main categories of Connective Tissue

Answer 26

1. connective tissue proper (loose and dense)
2. supporting connective tissue (cartilage and bone)
3. fluid connective tissue (blood)

Question 27

A complex collection of fibers and cells.

FUNCTIONS:
Packing material or meshwork providing an internal framework or an external wrapping

found between the dermis and muscle

Answer 27

Areolar Connective Tissue

Question 28

Unusual as a connective tissue that it is highly cellular

Functions
* Insulates the body
* Protects some organs
* Serves as a site of
fuel storage

Answer 28

Adipose tissue

Question 29

has fibroblast and fibrocytes, as well as reticular fibers. These fibers are made of fine strands of collagen.

Found in
- Liver, spleen, and lymph nodes

Answer 29

Reticular connective tissue

Question 30

collagenous tissue is found in tendons and ligaments and the parallel fibers have great tensile strength

Answer 30

Dense Regular Collagenous

Question 30

This tissue is found in the deep layers of skin and the white of the eye

Answer 30

Dense Irregular Collagenous