Category: Quiz

Scapula

SCAPULA

Q. 1

The muscles of scapula which function as retractors are given below, EXCEPT?

 A

Trapezius

 B

Rhomboid major

 C

Rhomboid minor

 D

Levator scapulae

Q. 1

The muscles of scapula which function as retractors are given below, EXCEPT?

 A

Trapezius

 B

Rhomboid major

 C

Rhomboid minor

 D

Levator scapulae

Ans. D

Explanation:

Three muscles make up of retractors of the scapula. They are,

  • Rhomboid major

  • Rhomboid minor (The rhomboid muscles attach to the spinous processes of C7–T5 and the medial border of the scapula, resulting in scapular retraction)

  • Middle fibers of trapeziuscourse horizontally from the lower nuchal ligament and thoracic vertebrae to the scapula, causing scapular retraction.

 These muscles primarily tug the shoulder blade back toward the vertebral column. The levator scapula muscle is located deep to the trapezius muscle and superior to the rhomboids causing elevation and downward rotation of the scapula.


Q. 2

All of the following muscles elevate scapula, EXCEPT?

 A

Trapezius

 B

Levator scapulae

 C

Latissimus dorsi

 D

Rhomboid major

Q. 2

All of the following muscles elevate scapula, EXCEPT?

 A

Trapezius

 B

Levator scapulae

 C

Latissimus dorsi

 D

Rhomboid major

Ans. C

Explanation:

The latissimus dorsi acts on the humerus causing powerful adduction, extension, and medial rotation of the arm.

  • Superior fibers of the trapezius cause scapular elevation and upward rotation. Middle fibers causes scapular retraction. Inferior fibers causes scapular depression and upward rotation.
  • The levator scapula muscle attaches to the cervical vertebrae and the superior angle of the scapula, causing elevation and downward rotation of the scapula.
  • The rhomboid muscles attach to the spinous processes of C7–T5 and the medial border of the scapula, resulting in scapular retraction also also helps in elevation of scapula.

Q. 3

Which is the muscle that draws the scapula forward ?

 A

Trapezuis

 B

Rhomboides

 C

Serratus anterior

 D

Levator scapulae

Q. 3

Which is the muscle that draws the scapula forward ?

 A

Trapezuis

 B

Rhomboides

 C

Serratus anterior

 D

Levator scapulae

Ans. C

Explanation:

Serratus anterior protracts the scapula, it acts as a main muscle in reaching and pushing movements. It also helps in raising the arm fully. The muscular digitations of serratus anterior can be seen and felt when the outstretched hand pushes against resistance. In case of paralysis, the lower angle of the scapula stands out prominently, there is projection of scapula also termed as winging of scapula.

Must know:

Seratus anterior is innervated by the long thoracic nerve also known as nerve of bell.

Good to know:

Dropped shoulder occurs as a result of paralysis of the trapezius muscle. With paralysis of the trapezius muscle a drop shoulder with rotation of the angle of the scapula towards the midline and restricted abduction of the arm is caused. Trapezius is supplied by accessory nerve.


Q. 4

All of the following muscles are used for the retraction of scapula, EXCEPT?

 A

Trapezius

 B

Rhomboideus major

 C

Rhomboideus minor

 D

Levator scapula

Q. 4

All of the following muscles are used for the retraction of scapula, EXCEPT?

 A

Trapezius

 B

Rhomboideus major

 C

Rhomboideus minor

 D

Levator scapula

Ans. D

Explanation:

The levator scapula muscle attaches to the cervical vertebrae and the superior angle of the scapula, causing elevation and downward rotation of the scapula.

 Trapezius elevates, retracts, depresses, and rotates scapula. The rhomboid muscles attach to the spinous processes of C7–T5 and the medial border of the scapula, resulting in scapular retraction. 

Q. 5

The spine of the scapula can be palpated at which of the following level of vertebrae?

 A

T 1

 B

T 3

 C

T 5

 D

T 7

Q. 5

The spine of the scapula can be palpated at which of the following level of vertebrae?

 A

T 1

 B

T 3

 C

T 5

 D

T 7

Ans. B

Explanation:

Spine of the scapula lies at the level of T3 vertebrae. Scapular spine is seen on the posterior surface of the scapula and it expands into a terminal process called acromion process.

The scapulae overlie the posterior portion of the thoracic wall, and cover the upper seven ribs. The superior angle of scapula can be palpated at the T1 vertebral level and the inferior angle lies  at the level of T7 vertebrae.


Q. 6

Inferior angle of scapula lies at –

 A

T6

 B

T7

 C

T3

 D

T12

Q. 6

Inferior angle of scapula lies at –

 A

T6

 B

T7

 C

T3

 D

T12

Ans. B

Explanation:

Important landmarks of scapula

i) Inferior angle overlaps seventh rib or seventh intercostal space and lies opposite to tip of T7 spinous process.

ii) Superior angle lies opposite to tip of T2 spinous process.

iii) Lateral angle corresponds to glenoid fossa.

iv) Junction of medial (vertebral) border corresponds to tip of T3 spine.


Q. 7

Which border of scapula is not palpable ‑

 A

Medial

 B

Lateral

 C

Inferior

 D

Superior

Q. 7

Which border of scapula is not palpable ‑

 A

Medial

 B

Lateral

 C

Inferior

 D

Superior

Ans. D

Explanation:

“The medial border, inferior angle and part of the lateral border of scapula can be palpated on a patient as can the spine and acromian. The superior border and angle of the scapula are deep to soft tissue and are not readly palpable”


Q. 8

Superior angle of scapula lies at which level ‑

 A

T7

 B

T12

 C

T2

 D

C5

Q. 8

Superior angle of scapula lies at which level ‑

 A

T7

 B

T12

 C

T2

 D

C5

Ans. C

Explanation:

Ans. is ‘c’ i.e., T2


Q. 9

Winging of scapula is seen in paralysis of which muscle‑

 A

Serratus anterior

 B

Supraspinatus

 C

Pectoralis major

 D

Infraspinatus

Q. 9

Winging of scapula is seen in paralysis of which muscle‑

 A

Serratus anterior

 B

Supraspinatus

 C

Pectoralis major

 D

Infraspinatus

Ans. A

Explanation:

Ans. is ‘a’ i.e., Serratus anterior


Q. 10

Congenital elevation of scapula is called ‑

 A

Sprengelshouder

 B

Bouchard

 C

Boutennier

 D

None of the above

Q. 10

Congenital elevation of scapula is called ‑

 A

Sprengelshouder

 B

Bouchard

 C

Boutennier

 D

None of the above

Ans. A

Explanation:

Ans. is ‘a’ i.e., Sprengel shoulder

Congenital high scapula (sprengel’s shoulder)

  • Congenital high scapula is an uncommon congenital deformity characterized by an abnormally high position and relative fixity of scapula.
  • The anomaly represents a failure of the scapula to descend during development to its normal thoracic position.

Q. 11

Patient presented with this condition of scapula in the clinic ,it is due involvement of?

 A

Medial pectoral nerve palsy

 B

Lateral pectoral nerve palsy

 C

Nerve to serratus anterior palsy

 D

Nerve to Latissimus dorsi palsy

Q. 11

Patient presented with this condition of scapula in the clinic ,it is due involvement of?

 A

Medial pectoral nerve palsy

 B

Lateral pectoral nerve palsy

 C

Nerve to serratus anterior palsy

 D

Nerve to Latissimus dorsi palsy

Ans. C

Explanation:

Winging of scapula

  • The most common cause of scapular winging is serratus anterior paralysis.
  • This is typically caused by damage to the long thoracic nerve.
  • This nerve supplies the serratus anterior, which is located on the side of the thorax and acts to pull the scapula forward

Q. 12

All of the following muscles are used for this action of scapula as seen in image, EXCEPT?

 A

Trapezius

 B

Rhomboideus major

 C

Rhomboideus minor

 D

Levator scapula

Q. 12

All of the following muscles are used for this action of scapula as seen in image, EXCEPT?

 A

Trapezius

 B

Rhomboideus major

 C

Rhomboideus minor

 D

Levator scapula

Ans. D

Explanation:

This action is retraction of scapula

  


Q. 13

Which muscle causes retraction of scapula ‑

 A

Serratus anterior

 B

Levator scapulae

 C

Rhomboideus major 

 D

Supraspinatus

Q. 13

Which muscle causes retraction of scapula ‑

 A

Serratus anterior

 B

Levator scapulae

 C

Rhomboideus major 

 D

Supraspinatus

Ans. C

Explanation:

Ans. is ‘c’ i.e., Rhomboideus major

Movements of scapula Muscles causing movements
Elevation Trapezius (upper part), levator scapulae
Depression Pectoralis minor, serratus anterior
Protraction Serratus anterior, pectoralis minor
Retraction Rhomboideus major Rhomboideus minor, Trapezius
Forward rotation of inferior angle(for overhead abduction) Trapezius (upper fibers), serratus anterior (lower fibers) 
Backward rotation Levator scapulae, rhomboideus major and minor

Q. 14

Winging of scapula is due to which of these conditions?

 A

Long thoracic nerve pals

 B

Thoraco-dorsal nerve palsy

 C

Erb’s palsy

 D

Klumpke’s palsy

Q. 14

Winging of scapula is due to which of these conditions?

 A

Long thoracic nerve pals

 B

Thoraco-dorsal nerve palsy

 C

Erb’s palsy

 D

Klumpke’s palsy

Ans. A

Explanation:

Ans. is ‘a’ i.e., Long thoracic nerve palsy 



Malcare WordPress Security