Kategorie: Wszystkie - diffusion - secretion - absorption - epithelial

przez Aligyah Penn 3 lat temu

244

Tissues of the body

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.