It is a type of dense connective tissue.

are flat, wide bands of tissue holding one muscle to another or to the periosteum (bone covering).

- Dentin – Enamel

play two key roles in muscle contraction and cell motility.

-Spindle-shaped, single nucleus –Not striated –Involuntary –Digestive tract, arteries and veins, ureters –Peristalsis

white glossy cartilage covering ends of bones (articular), covering ends of ribs(costal), and giving strength to nose, larynx, and trachea.

Tissue types

It is most abundant under the skin, where it acts as an insulator to help maintain body temperature in cold environments.

•Forms the walls of hollow organs ( except the heart) •Found in the skin and the eyes •Movement of food

These are the cube-shaped cells that line the kidney tubules and cover the ovaries and secretory parts of certain glands.

are fibrous connective tissue sheets that wrap around muscle bundles to hold them in place

give it a property of elasticity so that a structure can return to its original position even after stretching.

Helping fibroblasts to form in your dermis (middle skin layer), which helps new cells grow. Playing a role in replacing dead skin cells.

3 types of protein fibers

is a striated (having a cross-banding pattern), involuntary (not under conscious control) muscle. It makes up the walls of the heart.

generally works to hold organs, anatomic structures, and tissues in place.

examples of epithelial tissue

groups of cells with similar function

They provide tensile strength and resistance to stretching.

It is a type of connective tissue that is present throughout the human body. It provides support and helps to protect organs, muscles, and many other tissues. It also helps to bind the skin together.

It is found around the kidney, liver, the spleen, and lymph nodes, Peyer' patches as well as in bone marrow.

appears to be several layers but is not

It is found between the skin and muscles, around blood vessels and nerves and in the bone marrow.

intervertebral disks

Epithelial tissue Classification Based on Function

Ability of nerve tissue to respond to environmental changes

- Compact - Cancellous - Mineral salts: especially calcium and phosphorus

-Conducting cells –Very long: called nerve fibers

Ability to carry a nerve impulse (message).

injury repair, phagocytosis, inflammatory response –Fibroblasts, histiocytes, mast cells

Widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in the body

Absorbs nutrients

It is composed of a large, semifluid matrix, with many different types of cells and fibers embedded in it. These include fibroblasts (fibrocytes), plasma cells, macrophages, mast cells, and various white blood cells. The fibers are bundles of strong, flexible white fibrous protein called collagen, and elastic single fibers of elastin. It is found in the epidermis of the skin and in the subcutaneous layer with adipose cells.

Epithelial tissue Classification Based on Arrangement

This tissue forms ligaments, called white fibrous tissue, because tendons, and aponeuroses.

These are flat, irregularly shaped cells. They line the heart, blood and lymphatic vessels, body cavities, and alveoli (air sacs) of lungs.

also functions as an energy source for the body to use in the absence of glucose.

several layers of easily stretched cells

Cells are closely packed

study of tissues

Some highly cellular locations containing this tissue include the endocrine glands, liver, bone marrow, and lymphoid organs.

Secretes hormones, mucus, enzymes

Protects underlying tissues

forms filaments that provide cells with mechanical support and driving forces for movement.

The outer layer of the skin is composed of ___________. These epithelial cells on the outer skin layer protect the body against microbial invasion.

ears, auditory tubes, epiglottis

Elongated, with the nucleus generally near the bottom and often ciliated on the outer surface; they line the ducts, digestive tract (especially the intestinal and stomach lining), parts of the respiratory tract, and glands.

Cells with large amount of extracellular material.

fat storage

to provide structure, strength and support throughout your body.

Cells called chondrocytes •Found in lacunae

It is also located around the organs of the body and in the internal cavity of the bones.

the ability to contract, making movement possible.

is composed of neurons (nerve cells). They have branches through which various parts of the body are connected and their activities respond coordinated. They are found in the brain, spinal cord, and nerves.

are strong, flexible bands (or cords) that hold bones firmly together at the joints.

contains nucleus

are white, glistening bands attaching skeletal muscles to the bones.

-Makes up brain, spinal cord, and nerves –Is most highly organized tissue of the body –Controls and coordinates body activities –Allows perception –Controls emotion and reasoning –Stores memories

supporting cells

Excretes waste

Named according to shape, arrangement, function

flat (protection)

It is also called white fibrous tissue, because it is made from closely packed white collagen fibers. Fibrous tissue is flexible but not elastic. This tissue has a poor blood supply and heals slowly.

Connective tissue functions

This tissue surrounds various organs and supports both nerve cells and blood vessels, which transport nutrient material (to cells) and wastes (away from cells). It also (temporarily) stores glucose, salts, and water.

Major components of connective tissue

These muscles are attached to the movable parts of the skeleton. They are capable of rapid, powertul contractions and long states of partially sustained contractions, allowing for voluntary movement.

Located at the end of your bones reduces friction and prevents them from rubbing together when you use your joints.

Irregular arrangement of dense connective

several layers

one cell layer

support the early extracellular matrix during the formation of scar tissue, the healing of wounds, and general development.

Regular arrangement of dense connective

These cells have the ability to react to stimuli.

-Long thin cells –Multinucleated and striated –Actin and myosin –Voluntary –Movement by pulling on bones

rootlike extensions that receive stimuli

It is a strong, flexible connective tissue that protects your joints and bones. It acts as a shock absorber throughout your body.

Epithelial tissue Classification Based on Shape

It fills the space inside the organs, supports internal organs and helps in repair of tissues

cube shaped (protection and secretion)

is protein molecules made up of amino acids

These cells help the heart contract to pump blood through and out of the heart.

long thin extensions that transmit impulse

They contain both elastin and collagen fibres called fibroblasts.

-Only in the heart –Uninucleated and striated –Involuntary –Cylindrical shape

ribs, nose, trachea

contributes to biological processes such as sensing environmental forces, internalizing membrane vesicles, moving over surfaces and dividing the cell in two.

tall and rectangular (secretion and absorption)