Rabbit Muscles

  1. external oblique
    internal oblique
    tranversus abdominus
    • compress abdominal region
    • latter 2 are internal to external oblique
    • all differ in muscle fiber direction
  2. rectus abdominus
    • pulls sternum and ribs caudally
    • under external oblique
  3. multifidi
    • narrow band of muscles on either side of vertebral column
    • extend vertebral column
    • multifidi - posterior
    • spinalis - anterior
  4. erector spinae
    longissimus dorsi
    • thick muscles lateral to multifidi and spinalis
    • extend vertebral column
    • erector spinae - posterior
    • longissimus dorsi - anterior
  5. iliocostalis
    • lateral to longissimus dorsi
    • attached to ribs, brings ribs together (good for breathing/locomotion)
  6. serratus ventralis
    • fan-shaped muscle under armpit
    • helps pull scapula towards sternum
  7. splenius
    • alongside anterior end of longissimus dorsi
    • elevates head (attaches to occipital bone)
  8. scalenus
    • dorsal to rectus abdominus (anterior portion)
    • bends neck
  9. gluteus medius
    [ab/adducts thigh]
  10. gluteus maximus/superficialis
    abducts thigh
  11. caudofemoralis
    abducts thigh, extends shank
  12. biceps femoris
    abducts thigh, flexes shank
  13. tensor fascia latae
    helps extend shank
  14. sartorius
    • adducts thigh, extends shank
    • internal
  15. gracilis
    • adducts and retracts leg
    • internal
  16. quadriceps complex:
    vastus medius
    vastus lateralis
    rectus femoris
    • deep inner thigh
    • powerful shank extensors
  17. semimembranous
    • deep inner thigh
    • extends thigh
  18. adductor femoris brevis et magnus
    • deep inner thigh
    • adduct thigh
  19. sternohyoid
    retracts hyoid (bone at base of tongue)
  20. geniohyoid
    protracts hyoid
  21. sternothyroid
    retracts larynx (voice box)
  22. thyrohyoid
    protracts larynx
  23. temporal
    • skull roof and coronoid process of mandible
    • moves mandible dorsally and caudally (close jaws)
  24. masseter
    • zygomatic arch and mandible
    • moves mandible dorsally
    • associated with lateral "chewing" motion seen in herbivores when two opposing parts cancel each other out
  25. digastric
    • near geniohyoid
    • depressed mandible to open jaw
  26. mylohyoid
    • near geniohyoid
    • raises hyoid, tongue and floor of oral cavity
  27. What muscles are homologous to the cucullaris muscles in sharks?
    trapezius complex (support and rotate scapula)
Card Set
Rabbit Muscles
Rabbit Lab Practical Terms