Different tissues Flashcards
Location- 1) lines cardiovascular and lymphatic system (heart, blood vessels, lymphatic vessel linings) called the endothelium; 2) forms the epithelial layer of serous membranes called the mesothelium
Function- present at sites of filtration (blood filtration of kidneys) or diffusion (diffusion of oxygen into blood vessels of lungs) and at side of secretion in serous membrane
Simple Squamous Epithelium
Location- covers surface of ovary; lines anterior surface of capsule of lens of eye; forms pigmented epithelium at posterior surface of retina of eye; lines kidney tubules; makes up secreting portion of some glands such as thyroid gland
Function- Secretion and absorption
Simple cuboidal epithelium
Location- lines gastrointestinal tract(from stomach to anus), ducts of many glands, and gallbladder
Function- secretion and absorption. Larger columnar cells contain more organelles and those are capable of higher level of secretion and absorption then cuboidal cells. Secreted mucus lubricates learning of digestive respiratory and reproductive tracts, and most of urinary tract; helps prevent destruction of stomach lining by acidic gastric juice secreted by the stomach
Nonciliated simple columnar epithelium
Location- ciliated variety lines airways of most of upper respiratory tract; nonciliated variety lines larger ducts of many glands, epididymis, and part of male urethra
Function- ciliated variety secrets mucus that traps foreign particles, and cilia sweep away mucus for elimination of body
Pseudostratified columnar epithelium
Location- superficial layer of skin
Function- protection against abrasion, water loss, ultraviolet radiation, and foreign invasion; both types form first line of defense against microbes
Stratified squamous epithelium
Location- lines urinary bladder and portions of ureters and urethra
Function- allows urinary organs to stretch and maintain protective lining while holding a variable amounts of fluid without rupturing
Transitional epithelium
Location- in subcutaneous layer deep to skin; papillary (superficial) region of dermis of skin; lamina propria of mucous membranes; around blood vessels, nerves, and body organs
Function- strength, elasticity, support
Areolar connective tissue
Location- where areolar connective tissue is located: subcutaneous layer deep to skin, around heart and kidneys, yellow bone marrow, padding around joints and behind eyeball socket
Function- reduce heat loss through skin; serves as an energy reserve; supports and protects organs
Adipose tissue
Location- Stroma of liver, spleen, lymph nodes, Red bone marrow, reticular lamina of basement membrane, around blood vessels and muscles
Function- forms stroma of organs; binds smooth muscle tissue cells; filters and removes work out blood cells in spleen and microbes in lymph nodes
Reticular connective tissue
Location-forms tendons, most ligaments, and aponeuroses
Function- provide strong attachment between various structures. Tissue structure withstands pulling (tension) along long axis of fibers
Dense regular connective tissue
Location- often occurs in sheets such as fasciae (tissue beneath skin and around muscles), reticular (deeper) region of dermis of organs (kidneys, liver, testes, lymph nodes), and heart valves
Dense irregular connective tissue
Location- Long tissue walls of elastic arteries, trachea, bronchial tubes, true vocal cords, suspensory ligaments of penis, some ligaments between vertebrae
Function- Allow stretching of various organs; strong and can recoil to original shape after being stretched. elasticity is important to normal functioning of lung tissue in elastic arteries
Elastic connective tissue
Location- lines ducts of Sweat glands and esophageal glands
Stratified cuboidal epithelium
Lines Fallopian tubes uterus and some respiratory tract
Simple columnar epithelium
