Cell types Flashcards
- They form the covering of all body
surfaces - the major tissue in
glands.
EPITHELIAL
TISSUES
Functions of Epithelial Tissue
protection
secretion,
absorption
excretion
filtration
diffusion
sensory reception
Location: Air sacs of lungs and the lining
of the heart, blood vessels,
lymphatic vessels
- Allows materials to pass
by diffusion and
filtration
Simple Squamous
Epithelium
secretes
lubricating substance.
Simple Squamous
Epithelium
Location: In ducts and secretory portions
of small glands and in the kidney
tubules
-Secretes and absorbs
Simple Cuboidal
Epithelium
Location: Ciliated tissues are in the bronchi,
uterine tubes and uterus;
smooth (nonciliated tissues)
are in the digestive tract,
bladder
Simple Columnar
Epithelium
Location: Ciliated tissues line the
trachea and much of the upper
respiratory tract
Pseudostratified
Columnar
Epithelium
Location: Lines the esophagus, mouth,
and vagina
-Outer layer of skin
Stratified Squamous
Epithelium
Location: Sweat glands, salivary glands,
and the mammary glands
Stratified Cuboidal
Epithelium
Epithelial Cell
based on
Specialized
Functions
Transitional Epithelium
Glandular epithelium
Olfactory epithelium
LOCATION: Lines the bladder, urethra and
the ureters
Transitional
Epithelium
Located in the glands
Glandular
Epithelium
located in the nasal cavities
Olfactory
Epithelium
CONNECTIVE
TISSUES
AREOLAR TISSUE
ADIPOSE TISSUE (FAT)
CARTILAGE
BONE
BLOOD
a loose connective tissue that can be seen
between the skin and muscles
Areolar Tissue
-It is present in the skin and organs.
- It is composed of fat globules
and is characterized by fat
storage
Adipose Tissue (Fat)
is the only fluid connective
tissue composed of blood cells
(RBC, WBC, and platelets) and
plasma.
Blood
-is a complex connective tissue
that forms the framework of the body.
-It has a rigid matrix rich in calcium and collagen fibers.
Bone
is made of chondrocytes with dense, flexible intercellular
materials.
Cartilage
cushion
between bones
Cartilage
MUSCLE TISSUES
SKELETAL
CARDIAC
SMOOTH
These tissues are composed of long
cells called______
muscle fibers
not striated; involuntary
Smooth Muscle Cells
striated with an intercalated disk for
synchronized heart contraction; involuntary
Cardiac Muscle Cells
striated; voluntary movements
Skeletal Muscle Cells
These help in peristalsis and other involuntary
functions of the body.
Smooth Muscle Cells
Provide support, help in movement, and maintain
homeostasis
Skeletal Muscle Cells
It helps in blood circulation and keeps the heart
pumping
Cardiac Muscle Cells
Nervous Tissues
Neurons
Neuroglia
Neurosecretory Cells
Nerve cells that send
messages all over your
body to allow you to do
everything from breathing
to talking, eating, walking,
and thinking
Neurons
These are special cells
found in the brain and
spinal cord. They
provide support to the
neurons and fibers.
Neuroglia
These function as endocrine
organs. They release
chemicals from the axons
directly into the blood.
Neurosecretory Cells
Meristematic Tissues
Apical
Intercalary
Lateral
-These occur at the growing tips
and apicals of roots and stems.
-They raise the length of the plant.
Apical
-They occur at the
internodes and basis of
leaves.
-They raise the size of
the internode.
Intercalary
-These occur in the radial parts of
the stems and roots.
-They increase the thickness of
plants.
Lateral
Simple Permanent Tissues
Parenchyma
Collenchyma
Sclerenchyma
-These tissues are composed of
thin-walled cells having large
vacuoles.
-They are generally isodiametric
in shape.
Parenchyma
They are elongated living cells
with minute little intercellular
gaps. Their cell walls are made
up of pectin and cellulose.
Collenchyma
-They are long, narrow, and
thick-walled because of lignin
deposition in their cell wall.
-They do not have any
intercellular gap.
-Their main function is to
provide strength to the plants.
Sclerenchyma
Complex Permanent Tissues
Xylem
Phloem
-This tissue helps to transport
all dissolved substances and water
throughout the plant.
- It is also called
the chief conducting tissue.
Xylem
-It is also called the plant’s
plumbing system.
-They carry the
dissolved food substances
throughout the plant.
Phloem
Protective Tissues
Cork
Epidermis
It is an external type of
protective tissue. These cells are
lifeless and lack intercellular gaps.
Cork
This is a cell made up
of an outer casing throughout the
structure of the plants. The
stomata merge with this layer at
certain places.
Epidermis
