Tissues of the body

Tissue Types

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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.