senior histology
DESCRIPTION
TRANSCRIPT
Janet J. Nelson RN, CMA
….(with more than 100 types). Similar cells with extracellular matrix and fibers form tissues …..related tissues form organs …..related organs for systems and PRESTO we have a human body
1. CELLS2. FIBERS3. EXTRACELLULAR MATRIX
These components vary from tissue to tissue!!
TISSUE #1EPITHELIAL
TISSUE
LABEL SIMPLE EPITHELIAL TISSUE
http://www.cedarville.edu/personal/sullivan/histology/epithelia/index.htm
What view is this?
What view is this?
Ciliated lines most of the respiratory tract
Sweat gland ducts are examples of stratified cuboidal epithelium...usually however there are only two layers of cells.
Stratified Columnar epithelium is rare. One place you can find it is in the largest ducts of salivary glands (parotid, submandibular, etc). The basal layer of cells are cuboidal cells and the layer nearest the apical surface includes columnar cells. The large droplets are mucus, in Goblet cells.
When the tissue is stretched, the cells, especially those on the surface, become flat. This allows organs lined with transitional epithelium to change shape without damaging the epithelial lining.
Orange arrow points to free surface . Image on the left is an empty bladder. Image on right a full bladder
EXOCRINE GLANDS
EXOCRINE (such as sweat, sebaceous glands)
SEROUS (visceral and parietal)
MUCOUS
MEMBRANES
CUTANEOUS
PERIOSTEUM
SYNOVIAL
MEMBRANES
Review:
http://wps.aw.com/bc_marieb_happlace_7_oa/42/10964/2807009.cw/index.html
http://msjensen.cehd.umn.edu/webanatomy/histology/hist_epith_1_m.htm
TISSUE #2CONNECTIVE
TISSUE
CHARACTERISTICS:Blood supply varies
Extracellular matrix varies
Fibers vary
Notice all the different connective tissue of the elbow
http://www.cedarville.edu/personal/sullivan/histology/connective/index.htm
Reticular tissue highlymagnified
Ligament………………Tendon……………….Aponeuroses
ELASTIC CONNECTIVE TISSUE
View video of Haversian system:http://www.youtube.com/watch?
v=u1EdyPqhbpA
Cells…..Fibers…….Extracellular Matrix
HYALINE CARTILAGE C.T.
Image from intervertebral disk
ADIPOSE TISSUE C.T.
VASCULAR C.T.
Review:http://wps.aw.com/
bc_marieb_happlace_7_oa/42/10964/2807009.cw/index.html
TISSUE #3MUSCULAR
TISSUE
MUSCULAR TISSUESkeletal Muscle
Cardiac Muscle
Smooth (Visceral) Muscle
TISSUE #4NERVOUS
TISSUE
NERVOUS TISSUE
NEURONS & NEUROGLIA
REVIEW