HISTOLOGY SLIDES - 3

-






Comments

Post a Comment

Popular posts from this blog

Neurosurgery - Telovelar approach

-
Image
 Telovelar approach is carried out for the removal of any pathology that is present inside the 4th ventricle or the rhomboid fossa of the brain. The Space seen here behind the cerebellum is the rhomboid fossa (Fossa is just a trench or a channel). This rhomboid fossa forms a part of the 4th ventricle, which is connected to the third ventricle above by cerebral aqueduct and then runs downwards into the spinal cord as the central canal of the spinal cord, carrying the CSF (CerebroSpinal Fluid). The part behind the PONS and between the white core of cerebellum is called as the 4th ventricle. {For more information on anatomy of brain, please refer to our another blog on BRAIN}
Read more

TUBARIAL SALIVARY GLANDS - NEW ORGAN IN THE BODY

-
Image
 The Human Body has 3 pairs of salivary glands located in the body. These are Parotid, Submaxillary and Sublingual. Parotid salivary gland is present on the masseter muscle and can be felt on the surface of the skin of the jaw. Rest of the glands are located a bit deep, but can be palpated. Our body contains a pair of previously overlooked and clinically relevant nasopharyngeal salivary glands, according to new research led by the Netherlands Cancer Institute and the University of Amsterdam. Sparing these newly-identified glands, named the ‘tubarial glands,’ in patients receiving radiotherapy may provide an opportunity to improve their quality of life. There are 2 types of glands in the body, Major and minor. Parotid, submandibular and submaxillary are considered as MAJOR Salivary glands, where as thousands of minor salivary glands are distributed along the nasopharynx and oral mucosa.  These glands produce the saliva required for mastication, swallowing, digestion, tasting an...
Read more

CAH - CONGENITAL ADRENAL HYPERPLASIA

-
Image
C   ongenital Adrenal Hyperplasia or CAH, is a disorder which is characterised by defects in enzyme that lead to various effects.  The most common enzyme affected in CAH is 21 hydroxylases enzyme. The second most common enzyme to be affected is 11-β-hydroxylase enzyme. The gene CYP 21A 2 is affected, this is the same gene that codes for 21 hydroxylases. The following image shows the steroid pathway that takes place in the adrenal glands, where cholesterol is the basic material used for synthesis.  Here 21 OH stands for 21 Hydroxylase, 11 beta signifies 11-β-hydroxylase. As the normal physiological process, 21 hydroxylase enzyme acts as an important enzyme for synthesis of corticosteroids and mineralocorticoids. As there is 21 hydroxylase deficiency there will be reduction in the production of corticosteroids and mineralocorticoids. Due to deficiency of mineralocorticoids, there will be salt and water wasting. As the levels of corticoste...
Read more