1. Superficial Muscles of the Anterior Thoracic Region
Fohi Cat Dissection
We’ll Be
Looking Right Here!
Superficial Muscles of the Anterior Thoracic Region

2. Pectoantebrachialis (#1)

3. Pectoantebrachialis A Second View

4. Pectoralis Major (#2)

5. Pectoralis Minor (#3)

6. Pectoralis Minor A Second View

7. Xiphihumeralis (#4)

8. Linea Alba
It’s The “White Line” That Runs The Length Of the Thorax and Abdomen - The Linea Alba Serves As a Site of Separation of Bilaterally Symmetric Muscles!

9. Using your mall probe, tease it away from surrounding muscle.
Epitrochlearis
Using your mall probe, tease it away from surrounding muscle.

10. Triceps - Long Head
Note: The Epitrochlearis is cut and reflected to reveal the long head of the triceps brachii.

11. Superficial Muscles Of The Back and Shoulder
Fohi Cat Dissection
Superficial Muscles Of
The Back and Shoulder

12. Latissimus Dorsi (7)

13. Another View of the Latissimus Dorsi

14. Spinotrapezius
Note that the spinotrapezius is shaped like a triangle!

15. Acromiotrapezius
A very thin muscle that overlies the supraspinatus.

16. Clavotrapezius

17. The Deltoid Group
In man, the deltoid is one muscle. In a cat, the deltoid is subdivided into three muscles:
Spinodeltoid
Acromiodeltoid
Clavobrachialis (Clavodeltoid)

18. Spinodeltoid

19. Another View of the Spinodeltoid

20. Acromiodeltoid

21. Again, the Acromiodeltoid

22. Clavobrachialis

23. Again, the Clavobrachialis

24. Triceps - Lateral Head

25. Triceps
- Lateral
Head

26. Triceps - Long Head

27. Triceps - Long Head

28. spinotrapezius acromiotrapezius clavotrapezius Latissimus dorsi
spinodeltoid
acromiodeltoid
External oblique
clavobrachialis
Triceps brachii
9. Long head
10. Lateral head

30. Superficial Muscles of the Abdominal Region
Fohi Cat Dissection
Superficial Muscles of the Abdominal Region

31. A thick membrane covering the rectus abdominis muscles.
Aponeurosa
A thick membrane covering the rectus abdominis muscles.

32. The aponeurosa has been pulled away to reveal the rectus abdominis

33. Where To Make Your Abdominal Muscle Cuts

34. Rectus abdominis Transverse abdominis Internal Oblique
External oblique
Internal Oblique
reflected
External Oblique
-reflected

35. Muscles of the Abdominal Flank
External Abdominal Oblique
Internal Abdominal Oblique
Transversus Abdominis

36. External Abdominal Oblique
Postage Stamp Sized!

37. Internal Abdominal Oblique

38. Transversus Abdominis
If you can only find 2 muscle layers, you must cut more dorsally!

39. Superficial Muscles Of The Neck
Fohi Cat Dissection
Superficial Muscles Of
The Neck

40. Sternohyoid (#4 Below)
Leave alone!
You don’t need to know these
masseter
#5 is the Sternomastoid! The sternothyroid is beneath the sternohyoid.
Masseter is located with the star
Sternohyoid
Sternomastoid

41. Sternomastoid (#5 Below)
Do NOT sever this vessel
Sternomastoid

42. Muscles of the Neck A Second View
6. Sternomastoid
4. Sternohyoid
has been moved
laterally

43. Muscles of the Lower Forelimb Ventral View
FHS
Cat Dissection
Muscles of the Lower Forelimb Ventral View

44. Forelimb Muscles: ventral view
4: epitrochlearis
9: flexor carpi radialis
10: Palmeris Longus
11: Flexor carpi ulnaris
NOTE: The cat is lying on its back!
Review
1: clavodeltoid/Clavobrachialis
2: pectoantebrachialis
3: Pectoralis Major
#5 Is The Brachioradialis: an extra credit muscle

45. #5 Is The Brachioradialis!
NOTE: The cat is lying on its back!
#5 Is The Brachioradialis!

46. Flexor Carpi Radialis
#9 is the Flexor Carpi Radialis!

47. Palmaris Longus
It’s #10 to the right - the broadest, easiest to locate of the flexors!

48. Flexor Carpi Ulnaris
#11 to the right, it is the flexor that overlies the ulna. Run a pin into it and leave it as a point of reference - we’ll use it in identifying the extensors.

49. Superficial Muscles of the Lower Forelimb - Lateral View
FHS Cat Dissection
Superficial Muscles of the Lower Forelimb - Lateral View

50. Brachioradialis (Again)
#1 - A Lateral View of the Brachioradialis!

51. Brachioradialis - a 2nd View!

52. Extensor Carpi Radialis Longus (#2 Below)

53. Extensor Carpi Radialis Longus A Second View (#5 Below)

54. Extensor Carpi Radialis Brevis (#3 Below)

55. Extensor Carpi Radialis Brevis A 2nd View (#6 Below)

56. Extensor Carpi Ulnaris (#6)

57. Extensor Carpi Ulnaris A Second View (#9)

58. Flexor Carpi Ulnaris
This muscle should have a pin still inserted into it from the inspection of the medial foreleg (Muscles Page #6)

59. Flexor Carpi Ulnaris - a 2nd View (#10)

60. Lateral Forelimb Review
A - Brachioradialis
B - Extensor Carpi Radialis Longus
C - Extensor Carpi Radialis Brevis
D - Extensor Digitorum Communis
E - Extensor Digitorum Lateralis
F - Extensor Carpi Ulnaris

61. Superficial Muscles of the Upper Forelimb
FHS Cat Dissection
Superficial Muscles of the Upper Forelimb

62. Biceps Brachii
The Epitrochlearis is cut and reflected!

63. Triceps - Medial Head Median Nerve Triceps - M.H. Triceps - L.H.
Ulnar Nerve

64. Epitrochlearis - Cut and Reflected
The truth is…we’ve already done this. Free Points For All!

65. First, you must cut and reflect the Triceps - Lateral Head

66. Triceps - Long Head Triceps - Long Head
Yes…this is the Third Time we’ve seen it!

67. Triceps - Medial Head
Triceps - Medial Head

68. Brachialis
Brachialis

69. Clavobrachialis
Clavobrachialis

70. Superficial Muscles of the Hips, Small of the Back, and Buttocks
Fohi Cat Dissection
Superficial Muscles
of the Hips,
Small of the Back, and Buttocks

71. Semitendinosus (#5 Below)

72. Biceps Femoris

73. Caudofemoralis (#6 Below)

74. Gluteus Maximus (#7 Below)

75. Gluteus Medius

76. Tensor Fascia Latae (#2 Below)
The Iliotibial Tract (lower #2) has been pulled back to reveal the Vastus Lateralis (#3)

77. Tensor Fascia Latae - a 2nd View
Biceps femoris
Caudofemoralis
Gluteus maximus
Gluteus medius
Tensor fascia latae
Vastus lateralis
The Iliotibial Tract has been (accidentally) removed!

78. Sartorius (#1 Below)

79. Sartorius - A Second View
I’m Right Here!

80. Superficial and Deep Muscles of the Hindlimb
FOHI Cat Dissection
Superficial and Deep Muscles of the Hindlimb

81. Tibialis Anterior (#12)

82. Extensor Digitorum Longus (#11)

83. Soleus (#9)

84. Gastrocnemius

85. Biceps Femoris (Cut and Reflected)

86. Semitendinosus (#7)
The large nerve visible as #6 is the Ulnar Nerve…you’ll have to identify it at the end of the dissection!
2-Gluteus Maximus
3-Gluteus Medius
4 - Tensor Fascia
Latae

87. Semimembranosus

88. Vastus Lateralis (#5)

89. Adductor Femoris

90. Superficial Muscles and Deep Muscles of the Upper Hindlimb –
FOHI Cat Dissection
Superficial Muscles and Deep Muscles of the Upper Hindlimb –
Medial View

91. Sartorius and Gracilis

92. Sartorius (reflected)
Gracilis (reflected)
Tensor fasca lata
Vastus lateralis
Rectus femoris
Vastus medialis
Adductor
Semimembranosus
Semitendinosus
Gastrocnemius
Tibialis anterior

93. Sartorius (reflected)
Gracilis (reflected)
Tensor fasca lata
4a. Vastus lateralis
4b. Vastus intermedius
4c. Vastus medialis
Rectus femoris (reflected)
Adductor
Semimembranosus
Semitendinosus
Gastrocnemius
Tibialis anterier

94. Tibia
Flexor digitorum
Tibialis anterior

95. Flexor digitorum