Histology Flashcards
What is the basic structural and functional unit of life?
Cell
What is the epithelial lining of the heart and blood vessels ?
Simple squamous
What is the epithelial lining of the serous surfaces ( pericardium, peritoneum, pleura) ?
Simple squamous
What is the epithelial lining of the colon?
Simple columnar
What is the epithelial lining of the covering of ovaries?
Simple cuboidal
What is the epithelial lining of the thyroid gland follicles?
Simple cuboidal
What is the epithelial lining of the collecting tubules of the kidney?
Simple cuboidal
What is the epithelial lining of the small intestine?
Simple columnar
What is the epithelial lining of the fallopian tubes?
Simple columnar
What is the epithelial lining of the respiratory tract?
Simple columnar
What is the epithelial lining of the vas deferens ?
Simple columnar
What are the organs with simple squamous epithelium?
- Heart
- Blood vessels
- Pericardium
- Peritoneum
- Pleura
What are the organs with simple cuboidal epithelium ?
- Covering of Ovaries
- Thyroid gland follicles
- Collecting tubules Of the Kidney
What are the organs with simple columnar epithelium?
- Colon
- Small intestine
- Fallopian Tubes
- Respiratory Tract
- Vas deferens
What are the cells that forms the myelin?
- Schwann cells
- Oligodendrocytes
Surface Ectoderm Examples (10)
- Sensory organs of the ear
- Adenohypophysis
- Lens of the eye
- Epidermis
- Epithelium of the oral cavity
- Epithelium of the anal canal below the pectinate line
- Parotid Glands
- Sweat Glands
- Mammary Glands
- Olfactory Epithelium
Neural tube from Ectoderm Examples
- Brain
- Neurohypophysis
- CNS neurons
-All CNS Glial Cells except microglia & pineal gland - Spinal cord
- Retina
Neural crest cells from ectoderm examples (10)
- Enterochromaffin cells
- Leptomeninges (arachnoid & pia mater)
- Melanocytes
- Odontoblasts
- PNS ganglia
- Adrenal Medulla
- Schwann Cells
- Spinal membrane / Aorticpulmonary Septum
- Endocardial cushions
- Skull bones
Mesoderm examples (17)
- Dermis
- Muscle
- Bone
- Connective tissue
- Tracheal cartilage
- Cardiovascular structures
- Lymphatics & Blood
- Serous lining of cavities
- Kidneys
- Adrenal cortex
- Spleen
- Wall of gut tube
- Upper 2/3 of vagina
- Testes & Ovaries
- Microglia
- Dura mater
(Microglia lumabas sa board exam)
Endoderm examples (13)
- Gut tube epithelium including anal canal above pectinate line
- Most or urethra
- Lower 1/3 of vagina
Luminal epithelium derivatives:
4. Lung
5. Liver
6. Gallbladder
7. Pancreas
8. Eustachian tube
9. Thymus
10. Parathyroid
11. Thyroid
12. Follicular cells
13. Parafollicular cells
The most common connective tissue cell that has a euchromatic nucleus and it produces ground substance and extracellular fibers.
Fibroblasts
Produces hydrochloric acid and intrinsic factors.
Parietal (Oxyntic) Cell
Connective tissue which envelopes muscles.
Epimysium
Cell that forms myelin in the CNS.
Oligodendrocytes
Most abundant type of cartilage; serves as temporary skeleton for fetus.
Hyaline cartilage
Cells that secrete osteoclast stimulating factor in the presence of PTH.
Osteoblasts
Types of Collagen fibers (6)
Type I: bONE
Type II: carTWOlage and vitreous
Type III: reTHREEculin fibers
Type IV: On the floor - Basement membrane
Type V: buntis five : Fetal Tissue & Placenta
Type VII: Connects the Basement membrane to Reticular Lamina
No type VI