Tissues Flashcards
Epithelial tissue
Covering, lining and protecting tissues
Connective tissue
Supporting tissues
Muscle tissue
Contractile tissue
Nervous tissue (neuron)
Consists of neutrons and neurolglia, neutrons consists of dendrites, a cell body, and Axon to send impulses
Located in nervous system, central nervous system, brain, spine and peripheral nervous system
Nervous tissue
Conductive tissue
Simple squamous epithelium
- 1 layer flat cells with large nucleus in the center
- located in blood capillaries
- for diffusion
Simple cuboidal epithelium
- 1 layer of box shaped cells with nucleus in the center
- located in glands, kidney tubules, & ovaries
- Functions for secretion and absortion
Simple columnar epithelium
1 layer of column cells with nucleus in a row
•may contain goblet cells
•located in lining of digestive system and respiratory
•functions for protection, secretion, and absorption
Stratified squamous epithelium
Several layers of cells start as cuboidal cells & become flat
•located in epidermis, lining of the mouth, esophagus, rectum, anus, vagina
•functions for protection
Pseudostratified columnar epithelium
1 layer of column shaped cells with nuclei at many levels always contain goblet cells and cilia
Located at nasal cavity lining
For protection and secretion
Transitional epithelium
Many layers of cuboidal cells
Called transitional epithelium because cells undergo a transition in shape and become flat as urine bladder fills with urine
Located in bladder
Permits distention and recoil
Bone
Compact bone tissue consist of osteons that contain lamallae lacunae osteocytes canaliculi and central canals
Located in Various bones in body
For structure, support, protection ,blood production in marrow, fat and mineral storage
Adipose tissue
Made of adipocytes specialist to stored triglycerides and a large country located vacuole, nucleus on the side
Located: subcutaneous layer medullary cavities in many bones
For heat regulation, protection, insulation
Loose connective tissue you or areolar connective tissue
Composed of loosely packed collagen and elastin fibers, contains fibroblasts
Located; subcutaneous layer, between muscles, around blood vessels, nerves and joints
Function;Packing tissue, fill space
Fibrous connective tissue
Regularly pattern collagen fibers with fibroblasts, scattered throughout, no direct blood supply, heals slowly
Located in tendons ligaments and sclera (whites of eye)
For:Structure support protection
Blood
Plasma – liquid matrix
Erythrocytes-red cells, carries o and co2
Leukocytes- White cells, fight infection
Thrombocytes- platelets, blood clots
In blood veins and heart
Transports nutrients, wastes, hormones. Temp regulation, ph balance, bleeding infection defense
Hyaline cartilage
Matrix Consists of collagen fibers and chondrocytes, conveys a glassy appearance
Skeletal muscle
Long cells, cylindrical Straighted and contain multiple peripherally located nuclei, voluntarily controlled
Moves/Stabilizes skeletal position, guards entrances/exits to respiratory and digestion
Cardiac muscle
Cells are short, branched y – shaped and Straighted
Usually w/ 1 nucleus
Cells are interconnected by intercalated discs.
Located In heart
Circulates blood maintain blood pressure
Carcinoma
Cancer of epithelial cells
Sarcoma
Cancer of connective tissue (not common)
Leukemia
Cancer of the bone marrow/blood (common in youth)
Lymphoma
Cancer of lymph and immune
Neuroglioma
Affects the nervous system and brain
Benign tumor
Has border, can be surgically removed, does not spread, grow slowly, cause problems by causing pressure on organs
Malignant tumor
Poor borders, grows fast, invade other tissues
•infiltration- may invade other tissues
•metastasis-tumor cells break off and travel through the blood or lymph to other organs
Surgery
To remove the tumor, or to relieve pressure on other organs
Radiation
Use of radiation and a controlled manner to destroy temperature sent of cancer in each treatment
Immunotherapy
Manipulating the bodies own immune system response to attack the cancer cells
Caution
Change in bowel habits A sore that doesn't heal Unusual bleed/discharge Thickening or lumps Indigestion or hard to swallow Obvious change in wart/mole Nagging cough/hoarseness
Exocrine gland
Glenn’s composed of cuboidal cells, exiting Collins contain small tubes call ducks which move fluid into body surfaces
Located in silvery and sweat glands
Make sweat and spit, enzymes, tears
Endocrine gland
Composed of cuboidal cells. No ducks, they secrete products and hormone into blood
Located in ovaries, pituitary, pancreas, adrenal gland, testes, thyroid
Used for hormones
Smooth muscle
Short, spindle-shaped, not straighted, one nucleus, involuntary
Located in blood vessels walls of digestive,respiratory, urinary and reproductive organs
Movesfood, urine and reproductive tract secretions
Controls diameters of respiratory passages
Regulates tissue blood flow
