Zusammenfassung der Ressource
Animal tissue
- Epithelial tissue
- Simple
- Squamous
- 1.single layer
- 2.compactly
arranged
- 3. flat
- 4. prominent nuclei
- 'pavement/tesselated
epithelium'
- eg. inner lining of blood
(endothelium) vessels,
lining of alveoli,
Bowman's capsule, lining
of coelom
(mesothelium),
- directly over basement membrane/
avascular/ blood from basement membrane
- Cuboidal
- 1. single layer cube shaped cells
- 2. usually present in glands
- Brushbordered (Microvilli)
- eg. PCT (proximal
convulated tubules)
- Ciliated cuboidal
- eg. Parts of nephron
(collecting ducts)
- Germinal epithelium (eg of cuboidal in testis
and ovary (makes sperm and ovum))
- simple
cuboidal
- eg. Thyroid follicles,
sweat glands,
Pancreas acini, Iris,
Choroid
- Columnar
- 1. single layer of column like cells
- 2. nucleus situated on basal side
- Simple
columnar
- eg Bile duct, Liver
- Brushbordered columnar
- eg. small intestine
- Ciliated
columnar
- eg. Fallopian tubes,
Ependymal epithelium
(ventricles of brain)
- Stereociliated
columnar
- eg. Epididymis, Vas deferens,
Internal ear
- Pseudostratified
- False appearance of layers
- 2 types of cells (long cells, short cells)
- nucleus lies at different height but both
are connected to basement membrane
- eg. PSCGE (psc glandular epithelium),
Trachea, Bronchi, nasal
chamber(respiratory epi)
- Glandular
Epithelium
- Unicellular
- isolated glandular cells
- eg. Goblet cells of ailmentry canal
- Multicellular
- Simple
- single unbranched
duct
- tubes (tubules)
- sacs (acini, alveoli)
- Compound
- Branched system of
ducts
- pancreas, salivary gland
- Exocrine
- 2 parts (secretory and duct)
- ducts transport secretion
to site of action
- eg. salivary gland, tear gland, gastric
gland, intestinal gland, mammary
glands, sebaceous glands, earwax
- Endocrine
- lack ducts, (ductless
glands)
- secretions directly poured in
tissue fluid (hormones)
- eg. Insulin, Glucagon,
adrenaline
- Compound
- Stratified
- Transitional
- Connective
tissue
- Muscle tissue
- Neural tissue