Lab (Y/N)

Tissue Type

Characteristics

Functions

Location(s)

Y

1.       Simple Squamous Epithelium

Single layer of flattened cells

Filtration, absorption and secretion

Kidney, lungs, serous membranes, capillaries and linings of blood vessels and heart

Y

2.      Simple Cuboidal Epithelium

Single layer of cube-shaped cells

Absorption and secretion

Kidney, surface of ovaries, many glands

Y

3.      Simple Columnar Epithelium

Single layer of elongated cells (often with nuclei near basal end of cell)

Absorption and secretion

Stomach, small intestine, large intestine

Y

4.      Pseudostratified Columnar Epithelium

Single layer of cells with nuclei at different levels giving appearance of being multilayered

Absorption and secretion

Trachea, bronchi, nasal cavity, many bronchioles; some sperm ducts

Y

5.      Nonkeratinized Stratified Squamous Epithelium

Multiple layers of cells; outermost cells are very flat but nuclei are still visible

Protection

Mouth, pharynx, esophagus, anal canal, vagina

Y

6.      Keratinized Stratified Squamous Epithelium

Multiple layers of cells; outermost cells are very flat and flaky; nuclei are not visible

Protection

Skin

N

7.      Stratified Cuboidal Epithelium

Two or more layers of cells with outermost cube-shaped

Protection

Larger ducts of mammary glands, sweat glands, salivary glands, pancreas

N

8.      Stratified Columnar Epithelium

Two or more layers of cells with outermost elongated

Protection, secretion

Vas deferens, parts of male urethra

Y

9.      Transitional Epithelium

Multiple layers of cells; outermost cells are brick-like (when organ is relaxed) or squamous

Protection, stretching

Urinary bladder, ureters, urethra

Y

10.  Areolar CT

Fibroblasts, mast cells, macrophages embedded in gel-like ground substance with loose arrangement of all three fiber types

Cushions organs; contains blood vessels to supply organs; acts as a fluid reservoir

Underlying most epithelial tissues; upper (papillary region) dermis; around organs; within nerves and muscles

Y

11.   Adipose

Cells with large fat vacuole (giving an empty appearance)

Fat storage, insulation, cushions

Under skin (especially hypodermis); around organs; in abdominal cavity

N

12.  Reticular CT

Loose network of reticular fibers supporting white blood cells (lymphocytes and macrophages)

Supports cells in organs

Lymphoid organs (spleen, tonsils, thymus, lymph nodes)

Y

13.   Dense Regular CT

Fibroblasts scattered among densely packed collagen fibers that are arranged in parallel rows

Resists tension in single direction

Forms tendons, ligaments, aponeuroses

N

14.   Dense Irregular CT

Fibroblasts scattered among densely packed collagen fibers that are arranged in many different directions

Resists tension in many directions

Forms capsules around organs; lower (reticular region) of dermis

N

15.   Elastic CT

Fibroblasts scattered among densely packed parallel collagen and elastic fibers

Provides recoil after stretching

Large blood vessels; elastic ligaments between vertebrae

Y

16.   Hyaline Cartilage

Cells (chondrocytes) in openings called lacunae; no visible fibers 

Flexible support

Ends of bones at joints; attaching ribs to sternum; forms most of fetal skeleton

Y

17.   Elastic Cartilage

Chondrocytes in lacunae; elastic fibers arranged in no particular order

Provides bendable support

Out ear; epiglottis

Y

18.   Fibrocartilage

Chondrocytes in lacunae; collagen fibers arranged in roughly parallel rows

Provides cushioning

Between vertebrae, as pads at knees

Y

19.   Bone

Cells (osteocytes) in lacunae surrounded by calcified matrix; in compact bone, the layers of matrix are organized as concentric layers (lamellae) around a central canal

Provides leverage, support and protection

Forms skeleton

Y

20.  Blood

Cells (leukocytes and erythrocytes) in a liquid matrix

Transports materials throughout body; protects against disease; helps regulate pressure and temperature

Blood vessels

Y

21.   Skeletal Muscle

Large, cylindrical cells arranged in parallel; multiple nuclei per cell; striations

Voluntary motion and control of

Attached to skeleton; circular muscle around urethra and anal canal

Y

22.  Cardiac Muscle

Large, striated cells; single nucleus per cell; branching and intercalated disks present

Alternating contraction and relaxation

Heart wall

Y

23.  Smooth Muscle

Small, spindle-shaped cells with single central nucleus

Contraction

Walls of hollow organs; arrector pili muscle

Y

24.  Nervous Tissue

Large cells (neurons) scattered among smaller neurons

Information transfer (sensation, integration, motor control)

Mainly within cranial and vertebral canals