Histology Final Review

Simple Squaremous

Function: Diffusion and filtration

Location: Lining the lungs or blood vessels

Hyaline Cartilage

Function: firm, slight flexibility, development in bone growth

Location: ends of bones, attaching ribs to sternum, trachea

Adipose

Function: Insulation, cushioning, and storage energy

Location: Under skin, around heart and kidney, joints

Simple Columnar

Function: Absorption and secretion of mucus

Location: lining of the digestive tract

*Has goblet cells

Stratified Squamous

Function: Protection

Location: Skin, mouth, female V, esophagus

Compact Bone

Function: Support and protect body structures

Location: Bone

Elastic Cartilage

Function: Very flexible and provides framwork

Location: earlobe and larynx

Fibrocartilage

Function: Resist compression and tension, shock absorber

Location: Intervertebral disk and knee cartilage

Dense Regular

Function: Strong when pulled in one direction, binds

Location: tendons and ligaments

Reticular

Function: Forming a “soft net” supporting other cells, internal framework

Location: lymph nodes, spleen, liver

Pseudostratified Columnar

Function: Secrete mucus and protection

Location: Respiratory tract and fallopian tubes

Dense irregular

Function: strong when pulled in many directions

Location: dermis, covering bones/joints

Cardiac

Function: Contract, relax, pump

Location: heart

Skeletal

Function: Voluntary muscle movments

Location: Attached to bones and sometimes skin

Simple cuboidal

Function: Secretion and absorption

Location: kidney tubules and glands

Smooth

Function: involuntary movements

Location: reproductive organs

Stratified Columnar

Function: Protection and secretion

Location: Pharynx, male urthra, line ducts/glands

Areolar

Function: Binds, cushions, and wraps around organs

Location: Under epithelial and around organs

*Most common CT

Transitional

Function: Stretch and change shape

Location: lining of urinary organs and bladder

Stratified cuboidal

Function: protection and secretion

Location: Mammary glands, sweat, salivary

Glandular

Function: specialized secretion and hormones

Location: many glands

Spongy bone

Function: blood cell production and support

Location: inside the ends of long and flat bones

Cellular: Fibroblasts

produce fibers (Secreting proteins)

Cellular: Macrophages

Carry on phagocytosis

Cellular: Mast cells

Secrete heparin and histamine (immune system response)

Extracellular (matrix): Collagen fibers

hold structures together with great tensile strength

Extracellular (matrix): Elastic fibers

Stretch easily

Extracellular (matrix): Reticular fibers

lend delicate support

Extracellular (matrix): Ground substance

fills in spaces around cells and fibers

Connective 3

Macrophages, Mast cells, fibroblasts