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Human Upper Limb Musculature Quiz

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Which muscle is responsible for flexing the elbow joint?

Biceps brachii

Explanation

Primary flexor of the elbow.

Which muscle is located on the posterior aspect of the arm?

Triceps brachii

Explanation

Located at the back of the arm, responsible for extending the elbow.

Which muscle assists in adduction and medial rotation of the arm?

Teres major

Explanation

Assists in pulling the arm towards the body and rotating it medially.

Which muscle is responsible for extension and adduction of the arm?

Latissimus dorsi

Explanation

Pulls the arm downwards and towards the body.

Which muscle is the primary flexor of the wrist?

Flexor carpi radialis

Explanation

Primary muscle for bending the wrist.

Which muscle is involved in extension of the fingers?

Extensor digitorum

Explanation

Extends the fingers.

Which muscle is primarily responsible for abduction of the shoulder joint?

Deltoid

Explanation

Main muscle for lifting the arm away from the body.

Which muscle is the prime mover in shoulder abduction beyond 90 degrees?

Supraspinatus

Explanation

Initiates shoulder abduction and continues it beyond 90 degrees.

Which muscle assists in adduction of the shoulder and extension of the arm?

Latissimus dorsi

Explanation

Aids in pulling the arm towards the body and extending it.

#10

Which muscle assists in pronation of the forearm?

Pronator teres

Explanation

Helps in turning the palm downwards.

#11

Which muscle is responsible for supination of the forearm?

Supinator

Explanation

Turns the palm upwards.

#12

Which muscle is responsible for abduction of the thumb?

Abductor pollicis longus

Explanation

Moves the thumb away from the palm.

#13

Which muscle is responsible for adduction of the thumb?

Adductor pollicis

Explanation

Brings the thumb towards the palm.

#14

Which muscle is responsible for extension of the thumb?

Extensor pollicis brevis

Explanation

Extends the thumb.

#15

Which muscle is responsible for forearm pronation?

Pronator quadratus

Explanation

Pronates the forearm.

#16

Which muscle is the prime mover in forearm supination?

Supinator

Explanation

Primary muscle for turning the palm upwards.

Human Upper Limb Musculature Quiz

Which muscle is responsible for flexing the elbow joint?

Which muscle is located on the posterior aspect of the arm?

Which muscle assists in adduction and medial rotation of the arm?

Which muscle is responsible for extension and adduction of the arm?

Which muscle is the primary flexor of the wrist?

Which muscle is involved in extension of the fingers?

Which muscle is primarily responsible for abduction of the shoulder joint?

Which muscle is the prime mover in shoulder abduction beyond 90 degrees?

Which muscle assists in adduction of the shoulder and extension of the arm?

Which muscle assists in pronation of the forearm?

Which muscle is responsible for supination of the forearm?

Which muscle is responsible for abduction of the thumb?

Which muscle is responsible for adduction of the thumb?

Which muscle is responsible for extension of the thumb?

Which muscle is responsible for forearm pronation?

Which muscle is the prime mover in forearm supination?

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