Advanced Chest, Arm, and Back Muscles

1. Advanced Chest, Arm, and Back Muscles The next exam is worth 120 points!

2. Superficial Chest Human: Sternocleidomastoid Deltoid Pectoralis minor Pectoralis major Serratus anterior Rectus abdominis External oblique

3. Superficial Chest • 1 Pectoantebrachialis**no homolog in humans • 2 Pectoralis major • 3 Pectoralis minor • Xiphihumeralis**no homolog in humans 1 2 3

4. Superficial Deep Human: Levator scapulae Trapezius Deltoid Teres major Latissimus dorsi

5. Rhomboid minor Deltoid Superficial back Rhomboid major Teres minor Long head triceps Trapezius Latissimus dorsi

6. Group VI Superficial Shoulder, Back, & Forelimb 1 • Latissimus Dorsi • Spinotrapezius • Acromiotrapezius • Clavotrapezius • Levator Scapulae Ventralis • Spinodeltoid • Acromiodeltoid • Clavodeltoid • Triceps brachii Lateral Head • Triceps brachii Long Head 2 3 4 5 Head  6 7 8 9 10

7. Shoulder Levator scapulae ventralis Spinodeltoid Clavicodeltoid Acromiodeltoid

8. Fig. 11.2 Deep Shoulder and Back Human:

9. Deep Shoulder and Back 1 2 • Clavotrapezius (Reflected) • Acromiotrapezius • Supraspinatus • Infraspinatus • Triceps Brachii (Long Head) • Triceps Brachii (Lateral Head) • Acromiodeltoid • Clavodeltoid • Levator scapulae dorsalis • Splenius • Rhomboideus minor • Rhomboideus major • Spinotrapezius • Latissimus Dorsi • Spinalis Dorsi 3 4 5 6 7 8 9 10 11 12 13 14 15

10. 04_Cat_016-L

11. Group VII Deep Shoulder and Back • SpinalisDorsi • Longissimus • Iliocostalis • SerratusDorsalis (Reflected) • Serratus Ventralis (Reflected) • omit • omit • Splenius • Levator scapulae dorsalis (Reflected) (aka. Rhomboideus Capitis) deep back - epaxials 9 deep to clavotrapezius Head 

12. Deep Chest 1 2 3 • Scalenus ventralis • Scalenus medialis • Scalenus dorsalis • Serratus ventralis • Rectus abdominis • External intercostals 5 6 4 Head 

13. Deep Chest 1. Transversus Costarum 2. Rectus Abdominis 3a. Scalenus ventralis 3b. Scalenus medius 3c. Scalenus dorsalis • Serratus anterior • Subscapularis • Teres Major • omit -- coracobrachialis • Latissimus Dorsi Head 

14. Fig.11.8 Upper Arm Human:

15. Group VIII Upper Arm, Lateral Head  • Acromiotrapezius • Levator Scapulae Ventralis • Teres Major • Triceps brachii Lateral Head (Reflected) • Triceps brachii Long Head • Triceps brachii Medial Head • Biceps brachii • Brachialis • Clavodeltoid 7 9 8

16. Group VIII Upper Arm, Medial Head  • Clavodeltoid • Biceps Brachii • Triceps Brachii Medial Head • Epitrochlearis**no homolog in humans • Triceps Long Head

17. Upper Arm, Medial Head 

18. Fig.11.10 Lower Arm, Anterior (Cat = Medial) Human:

19. Lower Arm, Medial • Brachioradialis • Extensor Carpi Radialis Longus • Extensor Carpi Radialis Brevis • Pronator Teres 5a.Flexor Carpi Radialis • Flexor Digitorum Profundus • Palmaris Longus • Flexor Carpi Ulnaris • Clavodeltoid • Biceps Brachii • Epitrochlearis • Long Head of Triceps • Medial Head of Triceps • omit - Flexor Digitorum Superficialis Head  5a

20. Fig.11.10 Lower Arm, Posterior (Cat = Lateral) Human:

21. Group IX Lower Arm, Lateral • Triceps brachii (Long Head) • Triceps brachii (Lateral Head) • Brachialis • Brachioradialis • Extensor Carpi Radialis Longus • Extensor Carpi Radialis Brevis • Extensor Digitorum Communis • Extensor Digitorum Lateralis • Extensor Carpi Ulnaris • Flexor Carpi Ulnaris • omit – anconeus Head 

22. Lower Arm, Lateral Head 

23. Flexor digitorum superficialis Flexor pollicis longus Radial artery Brachioradialis Left - Anterior forearm Pronator teres (cut) Flexor carpi radialis Palmaris longus Flexor carpi ulnaris

24. Extensor pollicis brevis Brachioradialis Extensor pollicis longus Abductor pollicis longus Left - Posterior forearm Extensor digitorum Extensor carpi ulnaris Extensor carpi radialis brevis

25. Lower Arm, Medial

26. Lower Arm, Lateral