Biology 101 Lab Tissues

Animal Tissues

Epithelial tissue (covering and lining)

A. simple squamous epithelium (kidneys, air sacs of lungs, blood vessels, body cavity)

B. simple cuboidal epithelium (kidneys, secretory tubules, ovary surface)

C. simple columnar epithelium (lining of digestive tract, some glands, parts of uterus)

D. pseudostratified columnar epithelium (trachea, vas deferens, large glands)

E. stratified squamous epithelium (esophagus, mouth, vagina, skin)

F. stratified columnar epithelium (male urethra, some glands)

G. transitional epithelium (ureters, bladder, part or urethra)

Connective tissue

I. Embryonic connective tissue: Mesenchyme

II. Connective tissue proper

A. Loose connective tissue

1. areolar connective tissue (under epithelial linings of body)

2. adipose tissue (fatty tissue)

3. reticular connective tissue (lymph nodes, bone marrow, spleen)

B. Dense connective tissue

1. dense regular connective tissue (tendons, most ligaments, aponeuroses)

2. dense irregular connective tissue (dermis of skin, capsules of joints)

III. Cartilage

A. Hyaline cartilage (ends of bones, costal cartilage of ribs, nose, trachea, larynx)

B. Elastic cartilage (external ear, epiglottis)

C. Fibrocartilage (intervertebral discs, knee joint, pubic symphysis)

IV. Bone: osseous tissue (bones)

V. Blood

Nervous tissue: neurons (brain, spinal cord and nerves)

Muscle tissue

A. skeletal muscle tissue (skeletal muscles)

B. cardiac muscle tissue (the heart)

C. smooth muscle tissue (walls of hollow organs)

Plant Tissue Systems and Cell Types

Epidermis tissue

Vascular tissue

Ground tissue

Parenchyma cells

Collenchyma cells

Sclerenchyma cells

A. fiber cells

B. sclereids

Water conducting cells

A. tracheids

B. vessel elements

Food conducting cells

A. sieve tube members

B. companion cells