GI System
The structure that contains the portal vein, portal artery and bile duct is referred to as this.
What is the Portal Tract?
A mixture of multiple fixing agents is known as:
What is a compound fixative?
This inorganic salt is what gives bone it's strength and rigidity.
What is calcium hydroxyapatite?
This step in tissue processing is the removal of water from the tissue and can occur in the processor or during staining procedure.
What is dehydration?
The two physical methods of staining are:
What are adsorption and preferential solubility?
These liver cells store significant quantities of glycogen.
What are hepatocytes?
Fixatives containing this compound need to be washed before dehydration to prevent the formation of a green insoluble precipitate.
What is potassium dichromate?
This cell is derived from the osteoblasts and is actively involved in the maintenance of the matrix.
What are osteocytes?
Graduated alcohols are used in dehydration to minimize these 3 things:
What are shrinkage, hardening and distortion?
Perl's Prussian Blue for ferric iron is an example of this type of chemical staining,
What is histochemical reaction?
The GI tract has these 4 distinct functional layers?
What are mucosa, submucosa, muscularis propria and adventitia?
The compound fixative that contains aqueous picric acid, acetic acid and formaldehyde is:
What is Bouins?
This type of growth is what occurs in the skull bones.
What is intramembranous ossification?
This clearing agent would be best for whole organs or delicate CNS tissue.
What is chloroform?
This group is what confers the property of colour to a stain molecule.
What is a chromophore?
From the upper to lower esophagus, there is a transition of what type of tissue?
What is muscle? Skeletal muscle in upper, smooth muscle in lower.
The removal of Hg pigment (Dezenkerization) is accomplished using:
What is iodine followed by sodium thiosulphate?
The decalcification end point testing that cannot be done on Hg fixed tissue is:
What is xray testing?
These additives would be used to increase the stickiness of paraffin to facilitate ribboning for serial sectioning.
What is rubber or beeswax?
The shift in absorbance maximum to a longer wavelength is known as the :
What is bathochromic shift?
These cells of the stomach secrete gastric acid and intrinsic factor.
What are parietal cells? or what are Oxyntic cells
This compound fixative is especially good for calcified tissue as it dissolves out some calcium.
What is Heidenhain's?
When the decalcification fluid turns cloudy after the addition of ammonium hydroxide it is due to the formation of this
What is calcium hydroxide?
This infiltrating media would be best for whole organs
What is celloidin?
Chromotropic tissue substances include:
What are amyloid, acid mucins, cartilage matrix and mast cell granules?