Correct Answer - B
Ans. is 'b'i.e., Anterior wall
• The middle ear is shaped like a cube
• When seen in the coronal section, the cavity of the middle ear is
biconcave.
• The boundaries of the middle ear are as follows :
1. Roof or tegmental wall
• Separates the middle ear from the middle cranial cavity.
• It is formed by a thin plate of bone called tegmen tympani.
2. Floor or jugular wall
• Formed by a thin plate of bone which separates the middle ear from
the superior bulb of the internal jugular vein
• The floor also presents the tympanic canaliculus which transmits the
tympanic branch of the glossopharyngeal nerve
3. Anterior or carotid wall
• The uppermost part bears the opening of the canal of the tensor
tympani.
• The middle part has the opening of the auditory tube.
• The inferior part of the wall is formed by a thin plate of bone which
forms the posterior wall of the carotid canal. This plate separates the
middle ear from the internal carotid artery.
4. Posterior or mastoid wall

Correct Answer-C

Ans. is 'c' i.e., Anterior mediastinum
• Esophagus mainly descends in superior and posterior mediastinum
• Esophagus is usually not a content of middle mediastinum, but it
forms posterior boundry of middle mediastinum (BDC Vol.-1, 6`"/e p.
246).
• Esophagus has no relation to anterior mediastinum. Thus, among
the given options, best answer is anterior mediastinum

Correct Answer - C
• Circumcaval (retrocaval) ureter results from altered vasculature
rather than ureteral development. Thus, preureteral vena-cava is
more appropriate term.
• This disorder involves right ureter which passes behind IVC winding
about and crosses in front of it from medial to lateral direction.
The anomaly is divided into two types :?
1) Type 1 : It is more common and has hydronephrosis with a
typically obstructing pattern demonstrating some degree of fish-hook
shaped deformity of ureter.
2) Type 2 : It has lesser degree of hydronephrosis or not at all.

Correct Answer- A
Uvula vesicae is a small elevation situated immediately behind the urethral orifice, which is
produced by the underlying median lobe of the prostate. It enlarges with age due to
enlargement of the underlying median lobe of the prostate and may inhibit complete bladder
emptying.

Correct Answer-C
The cranial root of the accessory nerve is smaller than the spinal
root. It exits the skull through the jugular foramen and unites for a
short distance with the spinal root. Its fibers innervate the
pharyngeal and palatal muscles, except tensor veli palatini.
Because the cranial part of accessory nerve (CN XI) leaves the
jugular foramen as joining the CN X, it is sometimes considered part
of the plexus as well
The tensor veli palatini is supplied by the medial pterygoid nerve, a
branch of mandibular nerve, the third branch of the trigeminal nerve
- the only muscle of the palate not innervated by the pharyngeal
plexus

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Ans. is'b' i.e., Long head of triceps
. Supraglenoid tubercle of scapula : origin oflong head ofbiceps
. Infraglenoid tubercle of scapula : origin of long head of triceps

Correct Answer - B
Ans. is 'b' i.e., Potts disease
•A term for significant involvement of the pelvic floor by malignancy,
usually carcinoma, or ttuberculosis; in which there is massive
extension of pathology to the urinary bladder, female genital tract,
and sigmoid colon. Adequate resection of a frozen pelvis is virtually
impossible; chemotherapy and radiation therapy are palliative at
best.