Podcast
Questions and Answers
What is the function of the muscles of the posterior wall of axilla?
What is the function of the muscles of the posterior wall of axilla?
- Abduction of the arm
- Rotation of the arm
- Adduction of the arm (correct)
- Flexion of the arm
What happens to the tendons in the carpal tunnel when an individual performs awkward postures or repetitive hand movements?
What happens to the tendons in the carpal tunnel when an individual performs awkward postures or repetitive hand movements?
- They become shorter and thicker
- They become longer and thinner
- They become irritated and inflamed (correct)
- They become stronger and more resilient
Which muscles are located in the deep compartment of the forearm?
Which muscles are located in the deep compartment of the forearm?
- Flexor pollicis longus and flexor digitorum profundus (correct)
- Biceps and flexor digitorum superficialis
- Flexor pollicis longus and flexor digitorum superficialis
- Flexor digitorum profundus and biceps
What is the result of swelling of the tendons in the carpal tunnel?
What is the result of swelling of the tendons in the carpal tunnel?
Which of the following muscles is NOT located in the anterior compartment of the forearm?
Which of the following muscles is NOT located in the anterior compartment of the forearm?
Where is the pain located when the median nerve is compressed in the carpal tunnel?
Where is the pain located when the median nerve is compressed in the carpal tunnel?
Which of the following muscles is involved in the abduction of the arm?
Which of the following muscles is involved in the abduction of the arm?
Which muscle is responsible for flexing the forearm at the elbow joint?
Which muscle is responsible for flexing the forearm at the elbow joint?
Which muscle is the main extensor of the forearm?
Which muscle is the main extensor of the forearm?
What is the role of the brachialis muscle in the movement of the forearm?
What is the role of the brachialis muscle in the movement of the forearm?
Which muscle originates from the coracoid process and supraglenoid tubercle?
Which muscle originates from the coracoid process and supraglenoid tubercle?
Which muscle is involved in the adduction of the arm?
Which muscle is involved in the adduction of the arm?
What is the role of the supraspinatus muscle in the movement of the arm?
What is the role of the supraspinatus muscle in the movement of the arm?
Which muscle is involved in the flexion of the arm at the shoulder joint?
Which muscle is involved in the flexion of the arm at the shoulder joint?
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Study Notes
Regions of Upper Limb
- Upper limb consists of four regions: arm, forearm, wrist, and hand
Bones of Upper Limb
- Bones of upper limb include humerus, radius, and ulna
Muscles of Upper Limb
- Muscles involved in movement of arm:
- Flexion: deltoid, coracobrachialis, pectoralis major
- Extension: triceps brachii
- Abduction: deltoid
- Adduction: pectoralis major, deltoid
- Rotator cuff muscles: deltoid, supraspinatus, etc.
- Muscles involved in movement of forearm:
- Flexion: biceps brachii, brachialis
- Extension: triceps brachii
Muscles of Forearm
- Muscles of anterior compartment of forearm:
- Superficial muscles: flexor digitorum superficialis, etc.
- Deep muscles: flexor pollicis longus, flexor digitorum profundus, etc.
- Muscles of posterior compartment of forearm:
- Superficial muscles: extensor digitorum communis, etc.
- Deep muscles: extensor pollicis longus, extensor indicis, etc.
Carpal Tunnel Syndrome
- Carpal tunnel contains tendons from flexor pollicis longus, flexor digitorum profundus, and flexor digitorum superficialis
- Awkward postures or repetitive hand movements can cause irritation and inflammation of tendons
- Swelling of tendons can compress the median nerve, leading to pain at the wrist region
Cubital Fossa and Brachial Artery
- Cubital fossa is a triangular region in the anterior aspect of the elbow
- Brachial artery is located in the cubital fossa
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