Cat Muscles and Associated Structures

The following in boldface type are to be identified on the cat. (All page numbers refer to pages in the Human Anatomy Lab Manual by Marieb, 3rd ed.)

  1. Anterior Neck Muscles (p147)
    1. Sternomastoid and cleidomastoid (these muscles correspond to the single sternocleidomastoid in humans)
    2. Sternohyoids
    3. Digastric

d.      Mylohyoid

  1. Superficial Muscles of the Chest (pp147-148)
    1. The pectoralis group (these 3 muscles correspond to the single pectoralis major muscle in humans)
      1. Pectoralis major
      2. Pectoralis minor (this does not correspond to the pectoralis minor in humans)
      3. Xiphihumeralis
    2. Skip the Pectoantebrachialis, which has no counterpart in humans
  2. Abdominal Wall Muscles (p149)
    1. Rectus abdominis (also note the linea alba)
    2. External oblique
    3. Internal oblique
    4. Transversus abdominis
  3. Superficial Muscles of the Shoulder and Dorsal Trunk and Neck (pp149-150)
    1. The trapezius group (these three muscles correspond to the single trapezius muscle in humans; compare the names of the cat trapezius muscles with the insertions of the human trapezius)
      1. Clavotrapezius
      2. Acromiotrapezius
      3. Spinotrapezius
    2. Levator scapulae ventralis (same as the levator scapulae in humans; the human levator scapulae is located deep to the trapezius)
    3. The deltoid group (these three muscles correspond to the single deltoid muscle in the human; compare the names of the cat deltoid muscles with the origins of the human deltoid)
      1. Clavodeltoid
      2. Spinodeltoid
      3. Acromiodeltoid
  4. Latissimus dorsi  (note its aponeurosis)
  5. Deep Muscles of the Dorsal Trunk and Neck (pp151-152)
    1. Serratus ventralis (known as the serratus anterior in humans
    2. Subscapularis
    3. Splenius
    4. Teres major
    5. Skip the Rhomboideus capitis (no counterpart in humans)
    6. Rhomboid major and minor (often fused in cats but usually not in humans)
    7. Supraspinatus
    8. Infraspinatus
  6. Muscles of the Lateral Forelimb Surface
    1. Brachialis
    2. Brachioradialis
    3. Skip all the muscles in steps 4-7 on page 153 (the human counterparts will be studied on the arm models)
    4. Triceps brachii, including the long, lateral, and medial heads.
  7. Muscles of the Medial Forelimb Surface
    1. Biceps brachii
    2. Skip the epitrochlearis which has no counterpart in humans
    3. Skip the muscles in steps 3-6 on page 143 (the human counterparts will be studied on the arm models)
  8. Muscles of the Posteriolateral Hindlimb (pp154-57)
    1. Iliotibial tract
    2. Sartorius (this muscle looks very different in humans; compare with the human model)
    3. Tensor fasciae latae
    4. Gluteus medius
    5. Gluteus maximus
    6. Hamstring group
      1. Biceps femoris
      2. Semitendinosus
      3. Semimembranosus
    7. Triceps surae: gastrocnemius and soleus (note Achilles tendon)
    8. Skip muscles in steps 7-8, pp 156-157; (the human counterparts will be studied on the leg models)
  9. Muscles of the Anteromedial Hindlimb (pp157-158)
    1. Quadriceps femoris: vastus lateralis, vastus medialis, vastus intermedius and rectus femoris (note the patellar ligament
    2. Gracilis
    3. Adductor femoris (corresponds to the adductor magnus in humans)
    4. Adductor longus (note the femoral triangle between the adductors and sartorius)
    5. Skip muscles in steps 6-11, p 158; (the human counterparts will be studied on the leg models)