The Important Questions of for ANATOMY NEET PG exam:
1. All are true regarding axillary artery except?
A. It is a continuation of subclavian artery.
B. It is crossed by pectoralis minor muscle.
C. It extends from outer border of second rib to the lower border of teres minor.
D. The second part of part of axillary artery is posterior to pectoralis minor muscle.
Correct answer : C. It extends from outer border of second rib to the lower border of teres minor.
Branches of axillary artery
- Axillary artery extends from outer border of first rib to the lower border of teres major.
- Pectoralis minor crosses the axillary artery and divides it into 3 parts.
- First part – superior to the muscle.
- Second part – posterior to the muscle.
- Third part – inferior to the muscle.
2. Which of the following muscle is supplied by the anterior division of mandibular nerve?
A. Medial pterygoid
B. Lateral pterygoid
D. Anterior belly of digastric
Correct answer : B. Lateral pterygoid
Mandibular division of trigeminal nerve
- Anterior division of mandibular nerve supplies lateral pterygoid, masseter and temporalis.
- Medial pterygoid is supplied by the nerve to medial pterygoid which arises from the main trunk of the mandibular nerve.
- Mylohyoid and the anterior belly of digastric are supplied by the inferior alveolar nerve. Inferior alveolar nerve is the larger terminal branch of the posterior division of the mandibular nerve.
3. Regarding ansa cervicalis, all are true except?
A. Superior root is the continuation of the descending part of hypoglossal nerve
B. Inferior root is derived from the 4th cervical spinal nerve
C. Supplies the sternohyoid muscle
D. Lies embedded in the anterior wall of the carotid sheath
Correct answer : B. Inferior root is derived from the 4th cervical spinal nerve
Ansa cervicalis. Superior root – descending hypoglossal; Inferior root – descending cervical.
Inferior root of ansa cervicalis is derived from 2nd and 3rd cervical spinal nerves.
- Ansa cervicalis is a thin nerve loop that lies embedded in the anterior wall of the carotid sheath.
- It supplies sternohyoid, sternothyroid and inferior belly of omohyoid.
- Fibers of the superior root are derived from the first cervical nerve.
4. Roof the fourth ventricle is formed by all of the following except?
A. Inferior medullary velum
B. Superior medullary velum
D. Median eminence
Correct answer : D. Median eminence
Fourth ventricle – Sagittal section of the brain
Median eminence is seen in the floor of the fourth ventricle.
Roof of the fourth ventricle is formed by:
- Superior medullary velum
- Inferior medullary velum
- Superior cerebellar peduncle
- Tela choroidea of the the fourth ventricle
- Taeniae with the obex
5. The branch arising from the main trunk of mandibular nerve is?
A. Nerve to medial pterygoid
B. Nerve to lateral pterygoid
C. Buccal nerve
D. Auriculotemporal nerve
Correct answer : A. Nerve to medial pterygoid
Mandibular division of trigeminal nerve
BRANCHES OF MANDIBULAR NERVE
- From the main trunk:
- Meningeal branch
- Nerve to medial pterygoid
- From the anterior trunk:
- Buccal nerve
- Masseteric nerve
- Deep temporal nerve
- Nerve to lateral pterygoid
- From the posterior trunk:
- Auriculotemporal nerve
- Lingual nerve
- Inferior alveolar nerve.
6. Anterior wall of the third ventricle is formed by?
A. Lamina terminalis
B. Pineal body
C. Tuber cinereum
D. Mamillary body
Correct answer : A. Lamina terminalis
Ventricles of the brain
- Anterior wall of third ventricle is formed by lamina terminalis, anterior commissure and anterior column of fornix.
- Posterior wall is formed by pineal body, posterior commissure and cerebral aqueduct.
7. Which of the following is true regarding the lateral geniculate body?
A. It is connected to the inferior colliculus.
B. Layers 1, 4 and 6 receive the contralateral optic fibers.
C. It is situated posterolateral to the medial geniculate body.
D. It is overlapped by the lateral part of the temporal lobe.
Correct answer: B. Layers 1, 4 and 6 receive the contralateral optic fibers.
Brain stem – posterolateral view. Lateral geniculate body seen near the top.
- Lateral geniculate body is connected to the superior colliculus.
- It is situated anterolateral to the medial geniculate body.
- It is overlapped by the medial part of the temporal lobe.
8. All are true regarding femoral artery except?
A. Leaves the femoral triangle by passing through the adductor canal.
B. Femoral nerve is lateral to the upper part of the femoral artery in the femoral triangle.
C. Femoral branch of genitofemoral nerve is lateral to the upper part of femoral artery within the femoral sheath.
D. The medial cutaneous nerve of thigh crosses the artery from medial to lateral side near the apex of femoral triangle.
Correct answer : D. The medial cutaneous nerve of thigh crosses the artery from medial to lateral side near the apex of femoral triangle.
Branches of femoral artery
- The medial cutaneous nerve of thigh crosses the artery from lateral to medial side near the apex of femoral triangle.
- Femoral artery passes downward and medially first in the femoral triangle and then in the adductor canal. At the lower end of the adductor canal, it passes through the opening in the adductor magnus to become continuous with the popliteal artery.
Contents of femoral sheath:
Lateral compartment – Femoral artery and femoral branch of genitofemoral nerve.
Middle compartment – Femoral vein.
Medial compartment – Lymph node of Cloquet.
9. Deep perineal pouch in males does not include?
A. Pudendal nerve
B. Sphincter urethrae
C. Long perineal nerve
D. Dorsal nerve of penis
Correct answer : C. Long perineal nerve
Coronal section of pelvis. Deep perineal pouch is located between the superior and inferior layers of the urogenital diaphragm.
Long perineal nerve is located in the superficial perineal pouch.
Contents of deep perineal pouch in males:
Muscles – Sphincter urethrae, Deep transversus perinei.
Nerves – Dorsal nerve of penis, muscular branch from perineal nerve.
Vessels – Deep and dorsal arteries of penis, stem of origin of artery to the bulb of penis, urethral artery.
10. Which is true regarding suprarenal gland?
A. Posterior surface of left suprarenal is related to kidney.
B. Posterior surface of right suprarenal is related to inferior vena cava.
C. Lateral border of left suprarenal is related to left gastric artery.
D. Lateral border of right suprarenal is related to right coeliac ganglion.
Correct answer : A. Posterior surface of left suprarenal is related to kidney.
Relations of adrenal (suprarenal) gland
- Posterior surface of left suprarenal is related to the kidney laterally and left crus of diaphragm medially.
- Posterior surface of right suprarenal is related to right crus of diaphragm.
- Anterior surface of the right suprarenal is related to inferior vena cavamedially.
- Lateral border of left suprarenal is related to the stomach.
- The medial border of the left suprarenal is related to the left gastric artery.
- Lateral border of right suprarenal is related to the liver.
- Medial border of right suprarenal is related to right coeliac ganglion.
11. Pisiform is considered as a sesamoid bone in the tendon of?
A. Flexor digitorum superficialis
B. Flexor digitorum profundus
C. Abductor digiti minimi
D. Flexor carpi ulnaris
Correct answer : D. Flexor carpi ulnaris
Flexor carpi ulnaris
- Flexor carpi ulnaris is primarily inserted into the pisiform bone.
- But the muscle action is transmitted through ligaments into the hamate bone (via pisohamate ligament) and the 5th metacarpal bone (via pisometacarpal ligament).
- Hence, pisiform is considered as a sesamoid bone located in the tendon of flexor carpi ulnaris.
Other structures attached to pisiform:
- Flexor retinaculum
- Abductor digiti minimi
- Extensor retinaculum
12. Largest bursa in the human body is?
A. Subacromial bursa
B. Prepatellar bursa
C. Infrapatellar bursa
D. Trochanteric bursa
Correct answer : A. Subacromial bursa
Clinical correlation: Elbow bursitis
- The largest bursa in the body is the subacromial bursa.
- It is located beneath the coracoacromial arch and the deltoid muscle.
- Supraspinatus tendon and the greater tubercle of the humerus is situated underneath the bursa.
- Prevents friction between supraspinatus tendon and acromion.
- Facilitates the movement of the greater tubercle of humerus under the acromion process during overhead abduction.
13. Which is not a part of the hypogastric sheath?
A. Transverse cervical ligament
B. Broad ligament
C. Lateral ligament of bladder
D. Uterosacral ligament
Correct answer : B. Broad ligament
Coronal section of the pelvis showing the layers of pelvic fascia.
- Hypogastric sheath is a condensation of the pelvic fascia which transmits vessels and nerves along the lateral pelvic wall towards the pelvic viscera.
- Broad ligament of uterus is not a part of the hypogastric sheath.
- It is a peritoneal fold.
Parts of the hypogastric sheath:
- Anterior lamina – Lateral ligament of bladder.
- Middle lamina – Transverse cervical ligament, rectovesical septum in males.
- Posterior lamina – Presacral fascia, uterosacral ligament.
14. Chief pronator of the forearm is?
A. Pronator quadratus
B. Pronator teres
D. Flexor carpi radialis
Correct answer : A. Pronator quadratus
Muscles of forearm – anterior aspect – Pronator quadratus & Pronator teres are highlighted
Muscles involved in pronation of the forearm are:
- Pronator quadratus
- Pronator teres
- The chief pronator is pronator quadratus.
- It is assisted by the pronator teres to facilitate rapid movement and when the action is against resistance.
- Gravity also assists in pronation.
15. Supination of forearm with the elbow extended is brought about mainly by?
A. Biceps brachii
Correct answer : B. Supinator
Supinators of the forearm are:
- Biceps brachii (Involved in rapid supination with elbow flexed and supination against resistance.)
- Supinator (Mainly concerned with slow supination with elbow extended.)