Tissues of the body

Why do we need laws?

by Ketaki Thatte

Types of Tissues

by GRACE OZZELLO

Social Constructions of Childhood

by Gillian Dickinson

Epithelial

by Nina Sawyer

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.