作者：Aligyah Penn 4 年以前
331
Tissues of the body
Tissues of the body
Muscle tissue
Smooth muscle
Located: walls of hallow organs.
Function: propels substances,
slower (ex. Peristalsis)
Description: smooth like, spindle
like, not cylindrical, uni-nucleated,
not striated.
Cardiac muscle
Located: heart
Function: must generate ATP
continuously.
Description: much shorter,
uni-nucleated, striated, fit close
together at junctions called
"intercalated discs"
Skeletal muscle
Located: attached to bones.
Function: pulls on bones to make
gross body movements or
cause changes in facial movements.
Description: long and thin,
multi-nucleated, striated.
Subtopic
Connective tissue
Blood
Located: inside the blood vessels
Function: transportation, regulation,
and protection
Description: a fluid matrix, called
plasma, and no fibers
Reticular tissue
Located: in lymph nodes, bone
marrow, and spleen
Function: blood cell formation
and immune system defenses
Description: type of loose
connective tissue
Adipose tissue
Located: all over the body
Function: the regulation of whole-
body energy homeostasis
Description: almost entirely
of adipocytes (aka "fat cell")
Areolar tissue
Located: found throughout the
body, typically below epithelial
Function: Holds water in matrix,
provides support, strength and
elasticity
Description: a connective tissue
in which fibers are loosely arranged
in a net or meshwork
Ligaments
Located: around your joints
Function: serves to hold structures
together and keep them stable
Description: a fibrous connective
tissue which attaches bone to bone
Tendons
Located: Lying outside the
epitenon and contiguous
Function: serves to move the bone or
structure
Description: fibrous connective tissue
which attaches muscle to bone
Elastic cartilage
Located: in external ear and epiglottis
Function: provides strength, and elasticity
Description: most springy
Fibrocartilage
Located: found between vertebrae
and knee joint
Function: provides the tough
material of the intervertebral discs
Description: most tensile
strength
Hyaline cartilage
Located: in the nose, trachea,
larnyx, and bronchi
Function: provides mechanical
support for the respiratory tree,
nose, articular surface, and
developing bones.
Description: pearl gray
semitranslucent matrix
Bone
Located: ends of bone
Function: protects and supports
body
Description: white and sturdy
Nervous tissue
Supporting cells
Located: the central nervous system
(brain and spinal cord)
Function: maintaining homeostatic
control and immune surveillance in
the nervous system.
Description: non-neuronal cells
of the nervous system.
Neurons
Located: the brain, spinal cord, and nerves.
Function: send and receive signals.
Description: branches or spikes extending
out from the cell body.
Epithelial tissue
Gladular
Located: a mixture of bone
endocrine (ductless, hormones
are secreted into the blood
Function: production and release
of different secretary products
Description: a single cell or
a mass of epithelial cells
Transitional
Located: bladder
Function: stratified epithelia
that can stretch
Description: does not fit
"tidy" classification
Stratified columnar
Description: many layers
like column like cells
Stratified cuboidal
Located: exocrine glands
like sweat glands
Function: relatively rare
Description: many layers
of cube like cells
Stratified squamous
Located: skin surface/
esaphagus
Function: chemical and
mechanical protection
Description: many layers
of flat cells
Simple columnar
Located: kidneys, stomach,
and intesties
Function: secretion and
absorption
Description: single layer of
column like cells
Simple cuboidal
Located: kidneys and secretary
glands
Function: involved in secretion
and absorption
Description: single layer of cube-
like cells
Simple squamous
Located: lungs for gas exchange
Function: allows rapid diffusion
of substances.
Description: single layer of flat
cells of substances.
