TISSUE TYPES

TISSUE TYPES

1. NERVOUS

   • MUSCLE
     • EPITHELIAL
       • Simple Columnar
         • Location: nonciliated type lines most of the digestive tract (stomach to anal canal), gallbladder and excretory ducts of some glands; ciliated variety lines small bronchi, uterine tubes, and some regions of the uterus.
         • Function: Absorption; secretion of mucus, enzymes, and other substances; ciliated type propels mucus (or reproductive cells) by ciliated action.
       • Simple Cuboidal
         • Function: secretion and absorption
         • Location: Kidney tubules; ducts and secretory portions of small glands, ovary surface.
       • Transitional Epithelium
         • Location: lines the ureters, urinary bladder, and part of the urethra
         • function: stretches readily and permits distension of urinary organ by contained urine
       • stratified squamous
         • Function: protects underlying tissues in areas subject to abrasion
         • Location: nonkeratinized type forms the moist lining of the esophagus, mouth, and vagina; keratinized type forms the epidermis of the skin, a dry membrane.
       • SIMPLE SQUAMOUS
         • Function: secretion and absorption
         • Location: lining of kidney tubules ducts of glands covering surface of ovaries
       • Pseudostratified columnar
         • Function: Secretion, particularly of mucus; propulsion of mucus bu ciliary action.
         • Location: nonciliated type in male's sperm-carrying ducts and ducts of large glands; ciliated variety lines the trachea, most of the upper respiratory tract.
     • CONNECTIVE
       • Cartilage
       • Bone
         • Function: bone supports and protects
         • Location: bones
       • Elastic
         • allow for stretching and recoil
         • walls of elastic arteries, trachea, vocal chords; suspensory ligament of penis
       • Regular
         • attaches bone to bone (tendon) as well as muscle to bone (tendon); resists stress applied in one direction
         • tendons & ligaments
       • Reticular
         • Location: lymph nodes, spleen, liver
         • Function: forms supportive framework for these soft organs
       • Irregular
         • withstands stress applied in all directions; durable
         • most of dermis is skin; periosteum covering bone; perichondrium covering cartilage; some organ capsules
       • Blood
         • Function: transport of respiratory gases, nutrients, wastes, and other substances
         • Location: contained within blood vessels
       • Adipose
         • Location: under skin, and around organs
         • Function: stores lipids (energy), insulation, cushions organs
     • smooth
     • cardiac
     • skeletal
       • Location: skeletal
       • Function: movement, heat, posture