Briefly describe the process of Phagocytosis.
Phagocytosis is a vital cellular process where specialized cells, called phagocytes (e.g., macrophages, neutrophils, dendritic cells), engulf solid particles, such as bacteria, dead cells, or debris. The process begins with recognition and attachment of the particle to the phagocyte's surface receptors. Next, the phagocyte extends its cell membrane (pseudopods) to ingest the particle, forming an internal vesicle called a phagosome. The phagosome then fuses with lysosomes, which contain digestive enzymes and reactive oxygen species, forming a phagolysosome. Within the phagolysosome, the ingested material is digested and degraded. Finally, undigested remnants are either expelled from the cell or retained. This process is crucial for host defense against infection and for clearing cellular debris.
Answered By:
Describe the formation, course and branches of ulnar nerve. Which muscles do each of the branches supply? Why is ulnar nerve called the "musician's nerve"?
Name the nerves and their branches that supply the sole of the foot stating the specific area of their distribution. Explain in brief what is Morton's metatarsalgia.
Classify jaundice according to its aetiology. Make a tabular representation of the blood, urinary and stool findings observed in different types ofjaundice.
Describe the process of generation and conduction of nerve impulses in humans. Add a note on saltatory conduction.
With the help of a suitable diagram, explain the innervation and functions of muscle spindle.
Using a well labelled diagram, trace the taste pathway from circumvallate papillae of tongue to the cerebral cortex.
Enumerate any five tests for the assessment of renal tubular functions. Explain the underlying principle and their interpretation.
Explain the role of biotin in intermediary metabolism with suitable examples. Add a note on the mechanism of action of any biotin-antagonist with its application in medicine.
Define cardiac output and describe the regulation of cardiac output in normal adults. Add a note on Cardiac Index and Cardiac Reserve.
Define Systemic Vascular Resistance and list its determinants. Briefly explain the role of its determinants.
How will you manage a case of misplaced copper-T (Cu-T)?
Describe the embryogenesis, clinical features and principles of management of cleft palate.
Write short notes in 150 words:
Metagenesis
Write short notes in 150 words:
Book lungs
Write short notes in 150 words:
Paedomorphosis