BIOA 2006 - Lab 2: Histology

skeletal muscle

provides voluntary movement, orderly arrangement of myofilaments, cross-striations

cardiac muscle

Involuntary muscle tissue found only in the heart controlled by intrinsic rhythm and autonomic nervous system. Striated with intercalated discs

the junctions between cardiac muscles cells that allow the heart to contract as a unit are called

intercalated discs

smooth muscle is found in

hollow organs like the digestive tract, esophagus and blood vessels

smooth muscle has no

striations

smooth muscle appearance and characteristics

spindle shaped, plastic, involuntary

nerve cell anatomy

-nerve axon

-cell body

-cytoplasmic extensions and dendrites

dense connective tissue can be

tendons, ligaments

dense connective tissue has parallel

collagen and elastic fibres. main cell type is fibroblast

dense connective tissue appearance

compact bone tissue has a calcified matrix of

collagen, osteocytes

compact bone appearance

adipose tissue has nuclei which are

pushed to the side due to large fat droplets

Function of adipose

provides reserve food fuel; insulates against heat loss; supports and protects organs

the cartilage found in the trachea is

hyaline

the function of hyaline cartilage

supports and reinforces; serves as resilient cushion; resists compressive stress

hyaline cartilage locations

articular cartilage, costal cartilage, trachea, larynx, fetal skeleton