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Flashcards

Thoracic Musculature

Juliette Carroll AHS1 Cardiorespiratory English 48 cards

Thoracic Musculature

Cards in this deck (48)

  1. 1List the 5 factors which limit the size of the thoraxForelimb musculature
    Height of spinous (dorsal) processes of thoracic vertebrae
    Musculature associated w/these processes
    Pectoral muscles
    Cranial bulge of diaphragm
  2. 2What are the muscles associated with the spinous pocesses called?Epaxial
  3. 3What type of connective tissue makes up the dermis?Irregular dense connective
  4. 4What type of connective tissue makes up the deep fascia?Irregular dense connective
  5. 5What is the panniculus reflex?The "twitch" of the skin reflex seen when flies land on horses/cows
  6. 6Which muscle is involved with the panniculus reflex?Cutaneous trunci
  7. 7Which structure is the cutaneous tunic closely adhered to? Which types of animal is this most likely to be seen in during dissection?Skin. Most visible in muscular species
  8. 8In which direction do the fibres of the cutanous trunci muscle run?Cranial to caudal
  9. 9Name muscles A-EA: Brachiocephalicus
    B: Omotransversarius
    C: Trapezius
    D: Latissimus dorsi
    E: Pectoralis    Name muscles A-E
  10. 10What movement does contraction of the latissimus dorsi muscle cause?Retraction of the forelimb (movement away from head)
  11. 11What movement does contraction of the omotransversarius muscle cause?Protraction of the limb (movement towards head)
  12. 12Where does the omotransversarius muscle originate?Transverse processes of cervical vertebrae
  13. 13What movement does contraction of both brachiocephalicus muscle cause?Movement of the head down (a nod)
  14. 14What movement does contraction of one brachiocephalicus muscle cause?Movement of the head in that direction
  15. 15What movement does contraction of the pectoralis muscle cause?Adduction of forelimb
  16. 16What is the serratus dorsalis cranialis involved in?Inspiration
  17. 17Which muscles make up the girdle muscles?Serratus ventralis and pectoralis muscles
  18. 18List the respiratory musclesSerratus dorsalis
    Scalenus
    Extrinsic abdominal obliques
    External abdominal oblique aponeuroses
  19. 19What is distinctive about the scalenus muscle?The brachial plexus is attached here
  20. 20Where do the external and internal intercostals lie relative to one another?Intrinsic are deeper into the ribs (ie. medial) and external on surface
  21. 21What is the direction of muscle fibres in external intercostals?Cranio-caudal
  22. 22What is the direction of muscle fibres in internal intercostals?Caudo-cranial
  23. 23What structures does the dorsal ramus supply w/nerves?Skin and epaxials
  24. 24What structures does the ventral ramus supply w/nerves?Internal intercostals, ventral skin
  25. 25Are the nerves and blood vessels of the ribs located on the cranial or caudal side of the ribs?Caudal
  26. 26What is the order of the arteries, nerves and veins on each rib going cranially to caudal?Veins, arteries, nerves
  27. 27Why are they called segmental/intercostal nerves?Because they come from each vertebra
  28. 28Where are the crura of the diaphragm on this image?Where are the crura of the diaphragm on this image?Where are the crura of the diaphragm on this image?
  29. 29Which of the crura of the diaphragm is larger?Right
  30. 30Which 3 structures are the periphery of the diaphragm attached to?Lumbar vertebrae
    Caudal ribs
    Sternum
  31. 31What happens to the external abdominal obliques and EAO aponeuroses in animals w/COPD?Overuse the EAOs in an attempt to force air out and create a recoil for air to move back in and end up w/"heave" line from over use of this muscle
  32. 32What are extrinsic forelimb muscles?Those which originate outside the forelimb and extend onto it
  33. 33What are respiratory muscles?Any which have an impact on the size of the thorax
  34. 34—1) Rhomboideus
    2) Serratus dorsalis
    3a) Serratus ventralis (pars cervicalis)
    3b) Serratus ventralis (pars thoracis)
    4) Scalenus
    5) External abdominal oblique
    6) Pectoralis
    7) External abdominal oblique aponeurosis    1) Rhomboideus 2) Serratus dorsalis 3a) Serratus ventralis (pars cervicalis) 3b) Serratus ventralis (pars thoracis) 4) Scalenus 5) Extern...
  35. 35—1) Epaxial muscle
    2) External intercostals
    3) Innermost intercostals
    4) Internal intercostals
    5) Internal thoracic artery    1) Epaxial muscle 2) External intercostals 3) Innermost intercostals 4) Internal intercostals 5) Internal thoracic artery
  36. 36How many PAIRS of ribs does the dog have?13
  37. 37In the standing dog, the olecranon is adjacent to approximately which rib?5th
  38. 38Contraction of the hypaxials causes what movement?Flexion of spine
  39. 39What part of a thoracic vertebra does the head of a rib articulate with?Vertebral body
  40. 40What is deep fascia also known as?Epimysium
  41. 41When the skin is removed from an animal at the abattoir, which layer allows its easy removal?Hypodermis
  42. 42What does contraction of omotransversaius do?Protracts forelimb
  43. 43Which thoracic muscle inserts onto the MEDIAL surface of the scapula?Serratus ventralis
  44. 44—1) Cranial and caudal edge of scapula
    2) Olecranon
    3) Tuber coxae
    4) Costal arch    1) Cranial and caudal edge of scapula 2) Olecranon 3) Tuber coxae 4) Costal arch
  45. 45What type of connective tissue is present in the hypodermis/superficial fascia?Loose (areolar) connective tissue (stores fat)
  46. 46What is deep fascia?Tough fibrous sheets which cover muscle or form septa which divide muscle groups
  47. 47What is the purpose of deep fascia?Determine tracking of infection (?)
  48. 48—A: Spinalis & semisplinalis
    B: Longissimus thoracis
    C: Iliocostalis    A: Spinalis & semisplinalis B: Longissimus thoracis C: Iliocostalis

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AHS1 Cardiorespiratory Flashcards on Thoracic Musculature, created by Juliette Carroll on 12/11/2018.
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