animal tissue Flashcards
cells similar in form and structure to
perform a specific function
simple tissues
cells different in structure and
function performing a specific function
complex tissues
is the microscopic study of the tissues that
compose body organs
histology
the study of disease-related to tissue
histopathology
animal tissue can be categorized into the following:
epithelial
connective
muscular
nervous
- it covers the outer surface of all the organs of the
body and also lines the cavities of all the hollow
organs or vessels of the body and forms various glands - it is involved in protection, absorption, excretion and
secretion
-it consists of one or more cellular layers
Epithelial or Covering
Tissue/epithelium
- has only one layer of cell classified as squamous,
columnar and cuboidal, where the shape and the
structure are the bases - this mainly makes up the linings of ducts, tubes and
other cavities of the body
Simple Epithelial Tissue
Structure and Function
- a single layer of flattened, tightly bound cells; for
exchange of materials in the process such as diffusion
and filtration
Location
- forming capillary walls; lining air sacs(alveoli) of
lungs
Simple Squamous
Structure and Function
- a single layer of cube-shaped cells; for excretion,
secretion, or absorption
Location
- covering the surface of ovaries, the lining of kidney tubules,
salivary ducts and pancreatic ducts
Simple Cuboidal
Structure and Function
- a single layer of a column or brick-shaped cells; for
protection, secretion, and absorption
Location
- the lining of the digestive tract, gallbladder, and excretory
ducts of some glands
Simple Columnar
- comprises of more than one layer of cells, classified
according to the structure of the topmost tissue layer - The key function is protection and has a limited role in
secretion
STRATIFIED EPITHELIAL
TISSUE
Structure and Function
- multilayered and generates quickly; for protection
Location
- often found in the skin(epidermis), esophagus
STRATIFIED SQUAMOUS
Structure and Function
- multilayered cube-shaped cells fused together in
some glands; strengthening of luminal walls
Location
- ducts of larger sweat glands, salivary glands and
pancreas
STRATIFIED CUBOIDAL
Structure and Function
- elongated cell structure, for protection and secretion
Location
- usually found in conjunctiva and human salivary
glands
STRATIFIED COLUMNAR
Structure and Function
- single layer of cells, irregularly shaped cells; for
protection, secretion
Location
- the lining of respiratory passageways and auditory
PSEUDO-STRATIFIED
COLUMNAR
Structure and Function
- numerous layers of rounded cells, for distention
Location
- the lining of the urinary bladder and portion of ureters and
urethra
TRANSITIONAL
EPITHELIUM
- important for support, protection, transport,
insulation, and repair - most abundant among other animal tissue since
widely distributed in the body
-it structurally differs according to their localization
Connective or
Supporting Tissue
classification of connective tissue:
Loose(areolar)
Dense(fibrous)
Elastic
Reticular
Adipose
Hyaline
Fibro-cartilage
spongy bone
compact bone
blood
- function is for movement and locomotion that’s why
they are structurally elongated - involved in voluntary and involuntary movements
Muscular or
Contractile Tissue
Structure and Function
- a striated, multinucleated cylindrical fiber that occurs in
fasciculi (slender bundles); rapid voluntary and
involuntary movement of joints of the skeleton
Location
- spanning joints of the skeleton via tendons
Skeletal Muscle
Structure and Function
- elongated, spindle-shaped fiber with a single nucleus;
slow involuntary movements of internal organs
Location
- walls of hollow internal organs
SMOOTH MUSCLE
Structure and Function
- branched, striated fiber with single, rapid involuntary
rhythmic contractions
Location
- walls of your hearts
CARDIAC MUSCLE
- forms the communication network of the nervous
system and important in information processing - other function includes response to stimuli,
stimulates and transmits information within the body - involved in controlling and coordinating many
metabolic activities
NERVOUS OR
CONDUCTING TISSUES
