Tissue Type
Bone
Cartilage
(3 Types)
Structure
Contains mineral salts
and collagen fibers
(osteocytes).
*Lacunae: holds
osteocyte, but bon is
too dense to see it.
*Lamalae: rings in bone
matrix.
*Canaliculi: hairs that
communicate and
obtain nutrients from
the surroundings (come
off of osteocyte).
*Osteon: one unit of
bone.
*Osteocytes: bone cell
*Haversion/Osteonid
Central Canal: opening
in bone that contains
nerves and blood
vessels.
Rigid and flexible.
*Chondrocyte: cartilage
cell.
*Mostly avascular, but
is surrounded by them
and relies on diffusion
to obtain nutrients
(heals slowly).
*Has lacunae.
Connective Tissues:
Function
Provides structure,
support, protection,
and serve as
attachment (ligaments
and muscles), also
functions in forming
blood cells.
Provides support,
framework for
attachment, protects
and forms structure for
developing bones.
Location
Skeleton.
Various areas, depending on specific
cartilage type.
Type 1: Hyaline
Moderate amounts of
collagen in matrix giving
it a shiny/glass like
appearance.
*Most abundant type.
Cushions.
End of nose, ribs, ends of bones, fetal
skeleton.
Type 2: Elastic
Flexible, contains elastic
fibers.
Framework.
Framework of ear and larynx.
Type 3: Fibrocartilage
Tough, densely packed
collagen fibers.
Provide shock
absorption (cushion).
Intervertebral disks, between bones of
the knee.
Fibrous
(2 Types)
Dense, tightly packed
collagenous fibers with
few cells and
fibroblasts.
Following the same
path (looks like smooth
muscle but that has
nuclei in every cell).
Binding body parts
together.
Various areas depending on specific type.
Binding body parts
together.
Outer walls of kidneys and spleen.
Type 1: Regular
Type 2: Irregular
Not following the same
path, looks “busy.”
Binding body parts
together.
Tendons and ligaments or skin.
Loose/Areolar
Mainly composed of
fibroblasts. Forms thin
membrane between
organs. Gel/fluid matrix
with multiple types of
fibers and cells. And has
a lot of open space.
Acts as a reservoir of
water and salts. When a
body region is inflamed,
areolar tissue soaks up
the excess fluid and
swelling (edema).
Phagocytes scavenge
the area.
Beneath the skin and between muscles.
Adipose
Form of loose
connective tissue.
*Mostly cellular.
Stores fat in the
cytoplasm.
Beneath the skin (provides insulation and
protects organs), beneath the muscles,
around the kidneys, behind the eyeballs,
in some abdominal membranes, around
certain joints and on the surface of the
heart.
Reticular
Forms network and has
macrophages in it.
Phagocytic. Ingest and
destroy foreign
particles, defend the
body against infection
or invasion.
Lymphatic organs, lymph nodes, spleen,
blood and bone marrow (associated with
red blood cells).
Blood
(3 Types)
Various shapes.
*Fluid Matrix: blood
plasma.
*Blood cells are formed
in the hollow parts of
certain bones.
*Hematopoietic Tissue:
also called red bone
marrow.
*Only liquid connective
tissue.
Circular.
Transports substances,
maintains homeostasis.
Blood stream.
Gas/Nutrients.
Blood stream.
Type 1: Red Blood (Erythrocytes)
Type 2: White Blood (Leukocytes)
Like a pom-pom.
Defense.
Blood stream.
Type 3: Platelets-Cellular Fragments
(Thrombocytes)
Like an alien.
Helps defend, not as
good as white blood
cells.
Blood stream.