FAST REVISION
General Microbiology
the first X-linked immunodeficiency disease to be recognized is X-linked agammaglobulinemia. It is a primary immunodeficiency disorder caused by a mutation in the X-chromosome-linked gene responsible for the production of antibodies (specifically, im
Oral and Maxillofacial Surgery
Dentists determine the position of an impacted tooth using an x-ray by evaluating its relationship with the nerve, the adjacent teeth, and other anatomical structures such as the maxillary sinus or the mandibular canal. This helps in planning the sur
Physiology
In the sympathetic nervous system, the pre-to-post ganglionic fiber ratio of 1:20 to 1:100 indicates that there are fewer postganglionic fibers than preganglionic fibers. This ratio suggests that each preganglionic neuron synapses with multiple po