biology practical taif university
| Front | Classification of neurons3describe each |
| Back | Morphologically (processes)Pseudounipolarfound in dorsal root gangliaone central and one peripheral axonsBipolarfound in olfactory ganglia (with neuroepithelium)one dendrite and one axonMultipolarfound in brain and spinal cord (pyramidal cells)many dendrites and one axon Length of axongolgi type I: longgolgi type II: short Function:Sensory (affector) cells: long dendrites and short axon ~ gogli type IIMotor (effector cells): short dendrite and long axon ~ golgi type I |
| Front | Bone matrix composition2what happens when u get rid of its 1 of its 2 components |
| Back | Organic components:35% of its dry weightcontains type I collagen, glycosaminoglycan and glycoproteinsInorganic components:65% of its dry weightcontains minerals like calcium, Mg, Na, K, phosphorus and water.without minerals it becomes fragilewithout water it becomes flexible and less rigid |
| Front | describe everything about mitochondria.definitionL/ME/M and how it looksspecial stain usedrelation between number of mitochondria and metabolismcristae shapes 2functionsdiseases |
| Back | mitochondria is the powerhouse of the cell. reponsible for the ATP production.metabolism increases, mitochondria number increases. each liver cell has ~2000 mitochondriaL/M cant be seen with H&E. can be seen with janus green stain (special stain)E/M shows 3 membranes: inner membrane contains folds called cristae. More cristae = more surface area = more energy produced. it also surrounds the matrix. The mitochondrial matrix is surrounded by the inner membrane and is responsible for citric acid enzymes and fatty acid oxidation. it has two parts: Globular matrix has a stalk attached to the inner membrane Dense spherical matrix granules contains DNA, RNA, ribosomes, proteins, and enzymesintermembrane is a space between outer and inner. outer membrane is smooth layercristae has two shapes shelf-shape tubular in secretory cells (refer to glandular epithelium secretory part)Functions of mitochondria: production of ATP Enzyme production: oxidative phosphorylation Fatty acid oxidationcarbohydratescitric acidnitrogen metabolismelectron transport chain ETCLack of mitochondria causes muscular dysfunction and can be inherited |