NEET MDS Shorts
76174
NEETMDS
White (or anemic) infarcts
typically occur in solid organs with end-arterial circulation, such
as the heart, spleen, and kidneys, where the tissue density limits
the amount of hemorrhage from surrounding areas. Red
(or hemorrhagic) infarcts, in contrast, usually occur in soft, loose
tissues like the lungs or intestines. White
infarcts do occur due to arterial obstruction and appear as
wedge-shaped areas with the apex pointing toward the occluded
vessel.
85748
NEETMDS
The acini of serous salivary glands are lined by simple cuboidal epithelium.
40685
Periodontics
60992
Medicine
60089
ProsthodonticsOrientation records are best transferred by face-bow record.
41000
INI CET
In a patient with panfacial trauma and reduced mouth opening (trismus), the submental route for endotracheal intubation is often the most appropriate choice Nasotracheal intubation is contraindicated in panfacial trauma due to potential basilar skull fractures or severe nasal injuries. Orotracheal intubation is not possible due to the reduced mouth opening. Cricothyroidectomy is a surgical airway technique typically reserved for "cannot intubate, cannot ventilate" situations,
98354
PeriodonticsThe Modified Widman flap is designed for access to the root surface for debridement without significantly altering the pocket depth or increasing the width of keratinized gingiva. Other techniques, such as apically displaced flaps, aim to modify the gingival architecture.
72061
RadiologyThe radiographic projection most useful in examining stone of a submandibular duct is cross-sectional occlusal.
45519
NEETMDSA unilateral cleft lip results from the failure of the medial nasal prominence and the maxillary prominence to fuse during embryonic development. This fusion normally occurs around weeks 4 to 7 of gestation and is a critical step in the formation of the upper lip and primary palate.
66940
Orthodontics
Etiology of Tongue thrust Genetic factors : They are specific anatomic or neuromuscular variations in the oro-facial region that can precipitate tongue thrust. e.g. Hypertonic orbicularies oris activity. Learned behaviour (habit) : Tongue thrust can be acquired as a habit. The following are some of the predisposing factors that can lead to tongue thrusting: Sometimes the maturation is delayed and thus infantile swallow persists for a longer duration of time. Mechanical restrictions : The presence of certain conditions such as macroglossia, constricted dental arches and enlarged adenoids predispose to tongue thrust habit. Neurological disturbance: Neurological disturbances affecting the oro-facial region such as hyposensitive palate and moderate motor disability can cause tongue thrust habit. Psychogenic factors : Tongue thrust can sometimes occur as a result of forced discontinuation of other habits like thumb sucking. It is often seen that children who are forced to leave thumb sucking habit often take up tongue thrusting.
Fletcher has proposed the following factors as being the cause for tongue thrusting.
a. Improper bottle feeding
b. Prolonged thumb sucking
c. Prolonged tonsillar and upper respiratory tract infections
d. Prolonged duration of tenderness of gum or teeth can result in a change in swallowing pattern to avoid pressure on the tender zone.
Maturational : Tongue thrust can present as part of a normal childhood behaviour that is gradually modified as the age advances. The infantile swallow changes to a mature swallow once the posterior deciduous teeth start erupting.