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Extremities M and N
Extremities muscles and nerves
| Question | Answer |
|---|---|
| Name the superficial flexors of the forearm | Pronator teres, palmaris longus, flexor carpi radialis and flexor carpi ulnaris |
| What innervates the pronator teres, palmaris longus and flexor carpi radialis? | Median nerve (Lateral and Medial Cord) |
| What innervates the flexor carpi ulnaris? | Ulnar nerve |
| Name the intermediate muscle of the forearm | Flexor digitorum superficialis |
| What innervates the flexor digitorum superficialis? | Median |
| Name the deep flexor muscles of the forearm | Flexor Digitorum Profundus, Flexor pollicis longus and pronator quadratus |
| What innervates the flexor digitorum profundus? | Lateral: Median nerve, Medial: Ulnar nerve |
| What innervates the flexor pollicis longus and pronator quadratus? | Median nerve |
| What innervates the muscles in the dorsal part of the forearm(extensors)? | Radial nerve(Posterior cord) |
| Name the superficial extensors of the forearm | Brachioradialis, Carpi radialis brevis, carpit radialis longus, carpi ulnaris, digitorum and digiti minimi |
| Name the deep extensors of the forearm | Supinator, abductor pollicis brevis, extensor pollicis brevis, extensor pollicis longus, extensor indicis |
| Name the muscles of the anterior compartment of the arm | Coracobrachilais, Brachialis and biceps branchi (Elbow flexion and innervated by Musculocutaneous nerve from lateral cord) |
| Name the muscles of the posterior compartment of the arm | Triceps branci and anconeus (extension of forearm and innervated by radial nerve) |
| Name the six shoulder muscles | Deltoid, Supraspinatus, Infraspinatus, Teres minor, subscapularis and teres major |
| Name the rotator cuff muscles | Supraspinatus, Infraspinatus, teres minor and subscapularis |
| What shoulder muscles do the axillary nerve innervate? | Deltoid and teres minor |
| What shouler muscles do the suprasacpular nerve innervate? | Supraspinatus and infraspinatus |
| What shoulder muscles do the lower subscapular nerve innervate? | Subscapularis and teres major |
| What branch comes off the 1st part of the axillary artery? | Superior thoracic artery |
| What branches comes off the 2nd part of the axillary artery? | Thoracoacromial and lateral thoracic artery |
| What branches come off the 3rd part of the axillary artery? | Posterior and Anterior circumflex humeral artery and subscapular artery |
| Name the thenar muscles | Abductor pollicis brevis, Flexor Pollicis Brevis, Opponens pollicis (Median nerve innervation) |
| Name the hypothenar muscles | Opponens digiti minimi, flexor digiti minimi and abductor digiti minimi (Ulnar nerve innervation) |
| Name the muscle in the adductor compartment | Adductor pollicis: Transverse and oblique head (ulnar nerve innervation) |
| What innervates the lumbricial muscles of 2 and 3? | Median |
| What innervates the lumbrical muscles of 4 and 5? | Ulnar |
| What makes up the superficial palmar arch? | Superficial branch of ulnar artery and superficial palmar branch of radial artery |
| What do the 3 palmar interosseous muscles do? | Adductors (Ulnar nerve) |
| What do the 4 dorsal interosseous muscles do? | Abductors (Ulnar nerve) |
| What do lumbricals and interosseous flex and extend? | Flex the metacarpophalangeal joint and extend the proximal and distal interphalengeal joints |
| Name the muscles of the anterior compartment of the thigh | Rectus femoris, vastus lateralis, vastus intermedius, vastus medialis and sartorius |
| What innervates the anterior compartment of muscles of the thigh? | Femoral nerve |
| What is te biggest flexor of the hip joint? | Iliopsoas |
| Name the muscles of the medial compartment of the thigh | Adductor longus, adductor brevis, adductor magnus and gracialis (sometimes pectinis) |
| What innervates the medial compartment of the thigh? | Obturator |
| What innervates the pectinis? | Obturator and femoral nerve |
| Name the muscles of the posterior compartment of the thigh | Biceps femoris, semitendinous and semimembranous |
| What innervates the posterior compartment of the thigh? | Tibial and common fibular divisions of sciatic nerve |
| What nerve innervates the gluteus maximus? | Inferior gluteal nerve |
| Name the muscle that is a strong lateral rotator of the thigh | Quadrate femoris |
| Name the superficial muscles of the back | Trapezius, Latissimus Dorsi, Rhomboid major, rhomboid minor and levator scapulae |
| What superficial back muscles does the dorsal scapular nerve (C5) innervate? | Rhomboid major and minor and levator scapulae |
| What innervates the latissimus dorsi? | Thoracodorsal nerve |
| What innervates the trapezius? | Accessory nerve (cranial XI) and branches of C3 and C4 are sensory innervation |
| Name the layers of the intermediate back muscles | Serratus posterior superior and inferior muscle |
| What innervates the serratus posterior superior and inferior muscles? | Intercostal nerves: Superior (2-5) Inferior (9-12) |
| Name the deep muscles of the back | Splenius capitis, splenius cervicis, erector spinae and transversospinal group (Semispinalis, multifudus, rotatores) |
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