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COMPETITIVE EXAM

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Anatomy-A11 Language : English Your Anatomy SCORE

Text Size A- A+

Total Score : 11.01

Q.1

Wrist joint is -

A. Ellipsoid joint

B. Ball and socket joint

C. Saddle joint

D. Hinge joint

Explanation :

The radiocarpal joint or wrist joint is an ellipsoid joint formed by the radius and the articular disc proximally and the proximal row of carpal bones distally. The carpal bones on the ulnar side only make intermittent contact with the proximal side — the triquetrum only makes contact during ulnar abduction. The capsule, lax and un-branched, is thin on the dorsal side and can contain synovial folds. The capsule is continuous with the midcarpal joint and strengthened by numerous ligaments, including the palmar and dorsal radiocarpal ligaments, and the ulnar and radial collateral ligaments.

Q.2

The rotator cuff is composed of the following muscles EXCEPT:

A. Infraspinatus

B. Supraspinatus

C. Teres minor

D. Teres major

Explanation :

The muscle tendon units of the Supraspinatus,

Infraspinatus, Subscapularis t and Teres Minor compose the rotator cuff.

Each has its own specific muscle body but they coalesce together into one tendon as they pass through the subacromial space.

The rotator cuff serves to support the gleno-humeral joint, which is otherwise very prone to dislocation.

The rotator cuff is deficient inferiorly, & hence, the it is the weakest part of the shoulder joint capsule. Rotator interval is the interval between leading edge of Supraspinatus 8t superior edge of Subscapularis.

Coracohumeral ligament passes within the rotator interval.

Q.3

Rupture of supraspinatus manifests as -

A. Difficulty in initiation of abduction

B. Difficulty in abduction after 90°

C. Flat shoulders

D. Painful movements

Explanation :

Supraspinatus is responsible for shoulder abduction for the first 15 degrees. If it is torn completely, the initiation of abduction is impossible. Passive abduction upto 15 degrees allows other muscles to take over for further abduction.

Q.4

Carpel tunnel syndrome is caused by all except

A. Addisson’s disease

B. Hypothyroidism

C. Amyloidosis

D. Diabetes mellitus

Explanation :

Addison's disease is a disorder that occurs when your body produces insufficient amounts of certain hormones produced by your adrenal glands. In Addison's disease, your adrenal glands produce too little cortisol and often insufficient levels of aldosterone as well.

Also called adrenal insufficiency, Addison's disease occurs in all age groups and affects both sexes. Addison's disease can be life-threatening.

Treatment for Addison's disease involves taking hormones to replace the insufficient amounts being made by your adrenal glands, in order to mimic the beneficial effects produced by your naturally made hormones.

Q.5

Wrist joint is formed by articulation of -

A. Lower end of radius and ulna, and carpal bones

B. Lower end of radius and carpal bones

C. Lower end of radius, articular disc and carpal bones

D. Lower end of radius and intercarpal joint or inferior radioulnar joint

Explanation :

Components of wrist joint

- Distal end of radius

- Articular disc of inferior radioulnar joint

- Scaphoid, lunate, triquetral.

Q.6

Adduction of hand at wrist is done by -

A. Flexor carpi ulnaris

B. Flexor digitorum superficialis

C. Flexor digitorum profundus

D. Flexor carpi logus

Explanation :

Adductors of wrist joint

- Flexor carpi ulnaris

- Extensor carpi ulnaris

Q.7

Erb's point is at the junction of -

A. C5, 6

B. C6, 7

C. C7, 8

D. C8, T1

Explanation :

Erb’s point is in upper trunk (C5,C6). Injury here causes Erb’s paralysis.

Klumpke’s paralysis is due to injury at C8,T1.

Q.8

Klumpke's paralysis involves -

A. C8 and T1

B. C7 and 8

C. C6 and 7

D. C5 and 6

Explanation :

Erb’s point is in upper trunk (C5,C6). Injury here causes Erb’s paralysis.

Klumpke’s paralysis is due to injury at C8,T1.

Q.9

Movements taking place during abduction of shoulder joint are all except

A. Movements at .clavicular end of sternoclavicular joint

B. Elevation of humerus

C. Medial rotation of scapula

D. Axial rotation of humerus at acromioclavicular joint

Explanation :

The total range of abduction is 180. Abduction up to 90 occurs at the glenohumeral joint. Abduction from 90 to 120 can occur only if humerus is rotated laterally. Abduction from 120-180 can occur if scapula rotates forwards on the chest wall.

The humerus and scapula move in the ratio of 2:1 during abduction i.e. for every 15-degree elevation, the humerus moves 10 degrees and scapula moves 5degrees.

During early and terminal stages of elevation, the sternoclavicular and acromioclavicular joints move maximum respectively.

Q.10

False regarding ulnar nerve is. -

A. No branch in arm

B. Pass between supinator heads

C. C7 8 T1

D. C7 fibers come from lateral cord

Explanation :

Ulnar nerve

- Continuation of Medial cord (C8, T1)

- Receives fibers from lateral cord (C7)

- No branch in arm

- Enters forearm between two heads of flexor carpi ulnaris origin.

Q.11

False about clavicle -

A. Most common site of fracture is the junction of medial 1 /3 rd with lateral 2/3

B. No medullary cavity

C. Horizontal bone

D. Ossifies in membrane

Explanation :

Pecularities of clavide:

Only long bone which ossifies in mambrane.
Subcutaneous, placed horizontally,
No medullary cavity.
Two primary centers of ossification—5th and 6th weeks of intra-uterine life,
1st bone to start ossifying,
Pierced by middle supraclavicular nerve.
Connects appendicular to axial skeleton. Helps in weight transmission via coracoclavicular ligaments (has conoid and trapezoid parts attached to inferior surface of lateral end),
Most frequently fractured bone, common site—junction of lateral 1/3 and medial 2/3 of shaft (medial fragment pulled upward by the stemocleiomastoid, lateral pulled down by weight of arm),
Nutrient artery—branch of the suprascapular

Q.12

Ulnar nerve injury causes -
a) Weakness of adduction of thumb
b) Forment's sign
c) Thenar eminence atrophy
d) Pointing index
e) 4th and 5th finger clawing

A. acd

B. abe

C. cde

D. bcd

Explanation :

Ulnar nerve injury causes

- Paralysis of all interossei

- Medial two lumbricals paralysis

- Hypothenar muscles paralysis

- Adductor pollicis paralysis

- Flexor carpi ulnaris paralysis

- Medial two slips of flexor digitorum profundus paralysis

- Ulnar claw hand

Q.13

Wrist drop is due to injury of -

A. Radial nerve

B. Musculocutaneous nerve

C. Median nerve

D. Ulnar nerve

Explanation :

Radial nerve injury

- High radial nerve palsy- Injury above the spiral groove.

- Paralysis of all muscles supplied by radial nerve.

- Clinical features

:- Wrist drop, finger drop, thumb drop

:- Extension affected of- elbow, wrist, thumb and fingers

:-. Sensation affected of- posterior surface of arm and forearm and lower lateral half of forearm.

Low radial nerve palsy- Injury below the spiral groove.

-Type I- Injury between spiral groove and elbow.

:- Elbow extensors are spared- Triceps and Anconeus.

:- Wrist thumb and finger extensors paralysed- wrist drop, thumb drop, finger drop.

:- Loss of sensation on dorsal side of first web space.

- Type II- Injury below the elbow joint.

:- Elbow and wrist extensors spared

:- Thumb and finger extensors paralysed.(extensor digitorum, extensor digiti minimi, extensor indicis, extensor pollicis longus, extensor pollicis brevis)- Thumb drop and finger drop.

:- Loss of sensation on dorsal side of first web space.

Q.14

Flexor pollicis longus is supplied by -

A. Ulnar nerve

B. Anterior interosseus nerve

C. Posterior interosseus nerve

D. Radial nerve

Explanation :

Q.15

Deltoid is supplied by -

A. Suprascapular nerve

B. Upper and lower subscapular

C. Sciatic nerve

D. Axillary nerve

Explanation :

Q.16

All are contents of cubital fossa except -

A. Ulnar nerve

B. Brachial artery

C. Biceps tendon

D. Median nerve

Explanation :

Cubital Fossa

The cubital fossa is the region of the upper limb in front of the elbow joint. It is a triangular area with the following boundaries:

laterally, brachioradialis muscle
medially, pronator teres muscle
superiorly, an imaginary line from the medial and lateral epicondyles.

This circumscribed region contains the median cubital vein, brachial artery and median nerve. Their relationships with each other is important clinically since the median cubital vein is most often used for intravenous injections. Missed injections could be dangerous to the underlying structures.

Q.17

Nerve supply of adductor pollicis is by -

A. Ulnar nerve

B. Median nerve

C. Radial nerve

D. Musculocutaneous nerve

Explanation :

Deep branch of Ulnar nerve supplies Adductor pollicis, interossei and medial two lumbricals

Q.18

Biceps brachii is supplied by -

A. Musculocutaneous nerve

B. Axillary nerve

C. Median nerve

D. Radial nerve

Explanation :

Musculocutaneous nerve supplies Biceps brachii.

Q.19

Anterior axillary fold is due to which muscle -

A. Pectoralis major

B. Teres major

C. Subscapularis

D. Pectoralis minor

Explanation :

Anterior axillary fold is rounded in shaped and is formed by pectoralis major (lower border),
Posterior axillary fold is formed by teres major and latisimus dorsi.

Q.20

Nerve related to anatomical snuff box :-

A. Superficial branch of radial

B. Ulnar

C. Axillary

D. Median

Explanation :

Boundaries of anatomical snuff box

Anterior/ Lateral wall- Extensor pollicis brevis and abductor pollicis longus tendons.
Posterior/ medial wall- Extensor pollicis longus tendon
Floor- Styloid process of radius, trapezium,scaphoid and base of first metacarpal.
Roof- Skin, fascia, starting of cephalic vein, superficial branch of radial nerve.
Content- radial artery

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Exam Start Time :01:21:43 am

Exam Submit Time :02:40:17 am

Number Of Questions

Q.01Q.02Q.03Q.04Q.05Q.06Q.07Q.08Q.09Q.10Q.11Q.12Q.13Q.14Q.15Q.16Q.17Q.18Q.19Q.20

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