Block 4 Flashcards
What are the muscles in layer 1 of the anterior forearm?
- Pronator teres
- Flexor carpi radialis
- Palmaris longus
- Flexor carpi ulnaris
What is the muscle in layer 2 of the anterior forearm?
Flexor digitorum superficialis
What are the muscles in layer 3 of the anterior forearm?
- Flexor digitorum profundus
- Flexor pollicis longus
- Pronator quadratus
What are the muscles in layer 1 of the posterior forearm?
- Anconeus
- Extensor digitorum
- Extensor carpi ulnaris
- Extensor carpi radialis brevis
- Extensor carpi radialis longus
- Extensor digiti minimi
What are the muscles in layer 2 of the posterior forearm?
- Supinator
- Extensor indicis
- Extensor pollicis longus
- Extensor pollicis brevis
- Abductor pollicis longus
What does trapezius do and its innervation?
Elevates, retracts and depresses the scapula
Accessory n. (CN XI)
What does levator scapulae do and its innervation?
Elevates & rotates scapula
Dorsal scapula n. & C3-4
What does latissimus dorsi do and its innervation?
Extends, adducts and medially rotates humerus; Can raise the trunk to the arm e.g.dips/climbing
Thoracodorsal n.
What do rhomboid major and rhomboid minor do and their innervation?
Retract & fix position of scapula
Dorsal scapula n.
What does teres major do and its innervation?
Adduction & medial rotation of humerus
Lower Subscapular n.
What does pectoralis major do and its innervation?
Adducts & medially rotates the shoulder and acts as an accessory breathing muscle
Medial & lateral pectoral n.
What does pectoralis minor do and its innervation?
Depresses & protracts the scapula
Medial pectoral n.
What does supraspinatus do and its innervation?
Assists with initial part of arm abduction to around 20º
Suprascapular n.
What does infraspinatus do and its innervation?
Lateral shoulder rotation
Suprascapular n.
What does teres minor do and its innervation?
Lateral shoulder rotation
Axillary n.
