Friday, May 21, 2010

56 - AIIMS May 2010 Anatomy Mcqs

1. Middle superior alveolar nerve is a branch of
a) Mandibular division of trigeminal nerve
b) Palatine division of maxillary nerve
c) Anterior nasal division of maxillary nerve
d) Inferior alveolar nerve


2. All the following muscles retracts the scapula EXCEPT
a) Trapezius
b) Rhomboid major
c) Rhomboid minor
d) Levator scapulae


3. Cranial nerve NOT carrying parasympathetic fibres
a) 4th
b) 7th
c) 3rd
d) 9th


4. Prostatic urethra – True are A/E
a) Trapezoid in cross section
b) Elevated round swelling called verumontanum
c) Opening of prostatic ducts
d) Posterior part has urethral crest


5. Morgagni hernia presents most commonly on
a) Left posterior
b) Right anterior
c) Right posterior
d) Left anterior


6. Meralgia parasthetica is due to involvement of
a) Sural nerve
b) Medial cutaneous nerve of thigh
c) Lateral cutaneous nerve of thigh
d) Peroneal nerve


7. Celiac plexus is located
a) Anterolateral & around the aorta
b) Posterolateral & around the aorta
c) Anteromedial to lumbar sympathetic chain
d) Posterolateral to lumbar sympathetic chain


8. Paneth cells – True is
a) Rich in rough endoplasmic reticulum
b) High zinc content
c) Foamy cytoplasm
d) Numerous lysozyme granules


9. About sternocleidomastoid tumor all are true except –
a) Always associated with breech
b) Spontaenous resolution in most cases
c) Two-third have palpable neck mass at birth
d) Uncorrected cases develops plagiocephaly


10. The function of 8th cranial nerve is related to
a) Smell
b) Taste
c) Touch
d) Balance


11. Anterior ethmoidal nerve supplies all except?
a. Maxillary sinus
a) Interior of nasal cavity
b) Dural sheath of anterior cranial fossa
c) Ethmoidal air cells


12. A healthy young athlete is sitting at the edge of the table with knee at 90 degree
flexion. He fully extends it. What will happen?
a) Movement of tibial tuberosity towards lateral border of patella
b) Movement of tibial tuberosity towards medial border of patella
c) Movement of tibial tuberosity towards centre of patella
d) No change in position


13. Pain insensitive structure in brain is
a) Falx cerebri
b) Dural sheath surrounding vascular sinuses
c) Choroid plexus
d) Middle meningeal artery


14. Appendices epiploiceae present in
a) Appendix
b) Cecum
c) Rectum
d) Sigmoid colon


15. Pelvic splanchnic nerve supplies A/E
a) Appendix
b) Rectum
c) Uterus
d) Urinary bladder

Tuesday, May 18, 2010

55 - Pain Insensitive and Pain Sensitive structures in Brain

A. Pain Insensitive structures in Brain : (Intracranial)
1. Brain parenchyma
2. Ependyma
3. Choroid plexus
4. Piamatter
5. Arachnoid
6. Dura over convexity of skull ( Dura around vascular sinuses and vessels is sensitive to pain)

B. Pain Sensitive structures in Brain :
B1. Intracranial :
1. Cranial venous sinuses with afferent veins
2. Arteries at base of brain and arteries of dura including middle meningeal artery
3. Dura around venous sinuses and vessels
4. Falx cerebri

B2. Extracranial :
1. Skin
2. Scalp appendages
3. Periosteum
4. Muscles
5. Arteries
6. Mucosa

B3. Nerves :
1. Trigeminal (Fifth cranial nerve)
2. Facial (seventh cranial nerve)
3. Vagal (Tenth cranial nerve)
4. Glossopharyngeal (Ninth cranial nerve)
5. Second and Third cranial nerves

Monday, May 17, 2010

54 - Peroneus brevis



The peroneus brevis muscle (or fibularis brevis) lies under cover of the peroneus longus, and is a shorter and smaller muscle.

It arises from the lower two-thirds of the lateral surface of the body of the fibula; medial to the Peroneus longus; and from the intermuscular septa separating it from the adjacent muscles on the front and back of the leg.
The fibers pass vertically downward, and end in a tendon which runs behind the lateral malleolus along with but in front of that of the preceding muscle, the two tendons being enclosed in the same compartment, and lubricated by a common mucous sheath.
It then runs forward on the lateral side of the calcaneus, above the trochlear process and the tendon of the Peronæus longus, and is inserted into the tuberosity at the base of the fifth metatarsal bone, on its lateral side.

The terms "Peroneal" (i.e., Artery, Retinaculum) and "Peroneus" (i.e., Longus and Brevis) are derived from the Greek word Perone (pronounced Pair-uh-knee) meaning pin of a brooch or a buckle. In medical terminology, both terms refer to being of or relating to the fibula or to the outer portion of the leg.

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