NBDE Part I Exam Questions and
Answers (Latest Update 2024)
The philtrum of the lip is formed from what? - Correct
Answer ✅ Medial nasal processes and maxillary processes
Unilateral cleft lip is caused by what? - Correct Answer ✅
When the maxillary prominence on the affected side fails to
join with the merged medial nasal prominences
What is the most abundant papilla on the tongue? - Correct
Answer ✅ Filiform
Esophageal varices are commonly seen in what? - Correct
Answer ✅ Alcoholics
What type of hypersensitivity reaction is present in SLE? -
Correct Answer ✅ Type III (immune-antibody complex)
What are the symptoms of SLE? - Correct Answer ✅
Women
Inflammation in joints, tendons and other CT and organs.
Butterfuly rash over cheeks and bridge of nose
,NBDE Part I Exam Questions and
Answers (Latest Update 2024)
Individuals with SLE can have a false positive of what other
disease? - Correct Answer ✅ Syphilis
What are the sensory and motor components of the gag
reflex? - Correct Answer ✅ Sensory - Glossopharyngeal
Motor - Vagus
What ligament prevents excessive retraction of the TMJ? -
Correct Answer ✅ TMJ ligament
How does the TMJ get nutrients? - Correct Answer ✅
Through diffusion from the disk (synovial membrane and
synovial fluid provide nourishment and lubrication)
What artery supplies nutrients to the TMJ? - Correct Answer
✅ External carotid artery
What structure passes deep to they hyoglossus muscle? -
Correct Answer ✅ Lingual ARTERY
,NBDE Part I Exam Questions and
Answers (Latest Update 2024)
Each of the following structures lies between the hyoglossus
and the mylohyoid muscles EXCEPT one. - Correct Answer
✅ Lingual ARTERY
What premolar has the shorter central groove and more
supplemental grooves? - Correct Answer ✅ Second
maxillary premolar
Which premolar has a mesial groove? - Correct Answer ✅
Maxillary first premolar
Which premolar has a lingual groove? - Correct Answer ✅
Mandibular first premolar
Which tooth has the longest crown? - Correct Answer ✅
Mandibular canine
What is the only tooth that has its root inclined mesially? -
Correct Answer ✅ Mandibular canine
, NBDE Part I Exam Questions and
Answers (Latest Update 2024)
You have to do a RCT on a mandibular canine. What is the
most likely complication you may encounter? - Correct
Answer ✅ Bifurcated root
A bullet entering between teh 7th and 8th intercostal ribs
would pierce which lobe of the lung? - Correct Answer ✅
Inferior lobe
What is mesentery? - Correct Answer ✅ Tissue that
connects the posterior wall of the peritoneal cavity to the
jejunum
What is cor pulomonale? - Correct Answer ✅ Right
ventricular enlargement secondary to a lung disorder that
causes pulmonary artery HTN. RV failure follows.
What does pulmonary HTN do to the RV? - Correct Answer
✅ Increases afterload
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