Tuesday 9/26 Tissues Flashcards
Simple squamous
Single layer of the egg shaped epithelial cells
Found lining blood vessels also in walls of alveoli (microscopic air sacs of lungs) also found cover many internal organs
Simple cuboidal
Single layer of cube shaped epithelial cells
Found in walls of the kidney tubules( microscopic tubes that filter blood through urine)
Simple columnar
Single layer of column shaped Epi cells
Lines the stomach, the intestines, and the fallopian tubes
Stratified squamous
Multi layer of egg shaped epi cells
Outer layer of the skin ,lining of the nasal and oral cavity’s , pharynx, esophagus, vagina, urethra, anus
Stratified, cuboidal and stratified columnar
Rare
Pseudostratified columnar
Single layer of column shaped cells with a nuclei at different heights
Lines the trachea ( windpipe), bronchi(large airways), larynx(voice box), tubes of intestines
Pseudostratified squamous and pseudostratified Cuboidal
No such thing
Transitional Epithelium
Found lining urinary bladder and urethra
Multiple layers of epi cells the cells are squamous and cubodial shaped when the organs are stretched and column shaped when in stretched
Connective tissue
Most abundant tissue in the body
Vascular (had blood vessels embedded) exceptions are cartilage and dense regular ct
Innervated( has nerves wired to it )
Has ability to regenerate (Heal itself to certain extent)
Made up of ct cells and ct matrix
CT cells ending in “-blast”
Immature connective tissue cells
They are producing new connective tissue(healing or growing the tissues)
CT cells end in “cyte”
Mature cells that are maintaining the matrix they are “-blast” cells that have become trapped in the be tissue they’ve made
Osteoblasts/osteocytes
Bone cells
Chrondroblasts/chrondrocytes
Cartilage cells
Adipoblasts/Adipocytes
Fat cells
Fibroblasts/Fibrocytes
Generic CT cells
CT Matrix
The material surrounding ct cells
Give rise to the physical properties of the
Ground substance
Fluid, gel, Or crystals surround the ct cells
Connective tissue fibers
Proteins surrounding CT cells
3 types collagen, elastic, and reticular fibers
Collagen fibers
Made up of collagen, protein molecules braided together
Resembles microscopic rope
Allows CT to bend/allows flexibility, but prevents stretch
Elastic fibers
Like collagen fibers, but with a protein call elastin
Resembles microscopic bungee cords
Allows flexibility and stretch of a tissue
They recoil following stretch
Reticular fibers
Interconnected web of collagen, protein molecules
Resembles microscopic fishing net
Allows the tissue to filter material flowing through it
Areolar CT
Fibroblast/Phibro sites in a fluid matrix with all three fiber types
Found beneath epi tissues
It sticks/glued epi tissues to it organ
This will be found wherever you find connective tissue
Adipose tissue
Adipoblast/cytes with very little matrix between cells a.k.a. fat tissue
Found in the bottom layer of skin “ hypodermis”
Reticular CT
Fibroblast/cytes in a fluid matrix with reticular fibers
Found in spleen, bone marrow, lymph nodes
Dense regular CT
Fibroblast/Cytes in a gel matrix with collagen fibers arranged in parallel
Found in tendons and ligaments
Dense, irregular CT
Just like dense regular butt with the collagen, fibers, arranged randomly
Found in dermis (middle layer of skin )
Found in joint capsules
Elastic connective tissue
Just like that’s a regular CT but with elastic fibers instead of collagen
Found in the lungs and arteries
Hyaline cartilage
Chondroblast/Cytes in a gel matrix with collagen
Found in nose in on end of most bones
Fibrocartilage
Just like hyaline cartilage, but with more collagen fibers
Tough/shock absorbing cartilage
Found in intervertebral disc menisci
Elastic cartilage
Like hyaline cartilage, but with elastic fibers
Flexible cartilage
Found in ears
Bone tissue
It is a connective tissue
A.k.a. Osseous tissue.
Osteoblasts/cytes and Crystal matrix with collagen fibers
Found in bones
Blood
Blood cells in a liquid matrix
