Thoracic Wall - Block 3

25 Questions | Total Attempts: 951

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Thoracic Wall  - Block 3

Questions and Answers
  • 1. 
    The thoracic cavity and its wall are narrow ____________ and wider _________.
    • A. 

      Inferiorly; superiorly

    • B. 

      Superiorly; inferiorly

    • C. 

      Medial; lateral

    • D. 

      Dorsomedial; dorsolateral

  • 2. 
    The Thoracic wall houses and protects
    • A. 

      Organs of respiration (trachea, bronchii and lungs)

    • B. 

      Cardiovascular structures (heart and main vessels

    • C. 

      Superior abdominal viscera (liver, stomach, spleen and kidneys)

    • D. 

      All of the above

  • 3. 
    What is the name of componet #8 of the Thoracic wall
    • A. 

      Deep fasica

    • B. 

      Endothoracic fascia

    • C. 

      Parietal pleura

    • D. 

      Cartilage

  • 4. 
    A seven year old boy presents to the ER with trouble breathing and has multiple rib fractures and uncoupling of part of the chest walls from the ribs.  Among other findings he also has multiple organ damage.  What could be the possible injury he has suffered?
    • A. 

      Pneuomonae

    • B. 

      Pectus carinatum

    • C. 

      Pectus excavatum

    • D. 

      Flail Chest

  • 5. 
    Regarding the skeleton of the thorax
    • A. 

      The floating ribs are ribs 8 -12

    • B. 

      A typical rib consists of all the following: head, a neck, a tubercle, and a shaft wit its costal groove

    • C. 

      The most typical rib is rib 1

    • D. 

      The sternal angle marks the articulation of rib 3

    • E. 

      A line through the sternal angle bisects the disc between vertebrae T2 and T3

  • 6. 
    Regarding the thoracic wall
    • A. 

      The subcostal muscles are best developed in the upper part of the thorax

    • B. 

      The innermost intercostals are often regarded as parts of the external intercostal muscles

    • C. 

      The anterior intercostal membrane is the membranous portion of the internal intercostal muscle

    • D. 

      The anterior intercostal arteries are branches of the internal thoracic arteries

    • E. 

      The intercostal nerves are the posterior rami of the 12 thoracic nerves

  • 7. 
    The conducting system of the heart comprises:
    • A. 

      The sinuatrial node, His bundle, right and left branches

    • B. 

      The sinuatrial node, atrioventricular node, His and Her bundle

    • C. 

      The atrioventricular and atrial nodes, His bundle, right and left crura

    • D. 

      The sinuatrial node, atrioventricular node, His bundle, right and left branches, and Purkinje fibers network

    • E. 

      SA and VA node, his and her bundle, anterior and posterior crura, purkinje fiberts and network

  • 8. 
    Which of the following is NOT considered a group within the axillary lymph node chain?
    • A. 

      Humeral nodes

    • B. 

      Deep cervical nodes

    • C. 

      Apical nodes

    • D. 

      Central nodes

    • E. 

      Pectoral nodes

  • 9. 
    Which of the following does not lie in th superior mediastimum?
    • A. 

      Left recurrent laryngeal nerve

    • B. 

      Right recurrent laryngeal nerve

    • C. 

      Superior vena cava

    • D. 

      Trachea

    • E. 

      Esophagus

  • 10. 
    A tumor of the esophagus in the thorax would, if enlarged , most likely affect which part of the heart?
    • A. 

      Right atrium

    • B. 

      Left atrium

    • C. 

      Left ventricle

    • D. 

      Right ventricle

    • E. 

      Both ventricles

  • 11. 
    A tumor or growth in the area of the ligamentum arteriosum would most likely involve which of the following structures
    • A. 

      Right phrenic nerve

    • B. 

      Left phrenic nerve

    • C. 

      Left recurrent laryngeal nerve

    • D. 

      Right recurrent laryngeal nerve

    • E. 

      Right vagus nerve

  • 12. 
    A sharp knife wound starting at and including the external intercostal muscle would penetrate how many layers before hitting the lung tissue itself (include only tissue layers)
    • A. 

      Four

    • B. 

      Five

    • C. 

      Six

    • D. 

      Seven

    • E. 

      Eight

  • 13. 
    The groove for the subclavian vein and artery are associated with
    • A. 

      First rib

    • B. 

      Second rib

    • C. 

      Third rib

    • D. 

      Eighth rib

    • E. 

      Clavicle

  • 14. 
    Which oe of the following is not associated with right atrium (or auricle):
    • A. 

      Fossa ovalis

    • B. 

      Atrioventricular node

    • C. 

      Opening of coronary sinus

    • D. 

      Musculi pectinati

    • E. 

      Trabeculae carnae

  • 15. 
    A knife would into the heart, at the level of the fifth left intercostal space, near the sternum, would penetrate all of the following layers except:
    • A. 

      Fibrous pericardium

    • B. 

      Serous visceral pericardium

    • C. 

      Serous parietal pericardium

    • D. 

      Visceral and parietal pleura

    • E. 

      Pericardial cavity

  • 16. 
    Which of the following statements is not true of th thoracic duct:
    • A. 

      Extends from upper abdomen to neck

    • B. 

      Found in the posterior mediastinum

    • C. 

      Associated with the cisterna chili

    • D. 

      Drains both right and left sides of the thorax

    • E. 

      Usually ascends to the right of the thoracic aorta

  • 17. 
    The sternal angle is an important landmark.  It is at the level of
    • A. 

      Cervical vertebrae 7

    • B. 

      Disc between thoracic vertebrae 2 and 3

    • C. 

      Disc between thoracic vertebrae 4 and 5

    • D. 

      Disc between vertebrae 6 and 7

    • E. 

      Thoracic vertebrae 7

  • 18. 
    A bullet shot into the lateral chest wall through an intercostal space would perforate immediately which of the following after passing through the parietal pleura:
    • A. 

      Innermost intercostal muscle

    • B. 

      Potential pleural cavity

    • C. 

      Internal intercostal muscle

    • D. 

      Endothoracic fascia

    • E. 

      Pericardial cavity

  • 19. 
    An esophageal aneurysum (marked dilation) would most likely affect which part of the heart directy:
    • A. 

      Left ventricle

    • B. 

      Right ventricle

    • C. 

      Left atrium

    • D. 

      Right atrium

    • E. 

      Left auricle

  • 20. 
    The mitral (bicuspid) valve is best heard:
    • A. 

      Over the left second intercostal space

    • B. 

      Over the right second intercostal space

    • C. 

      Over the lower partof the sternal body

    • D. 

      Over the mid portion of the sternum

    • E. 

      Over the fifth left intercostal space at the mid clavicular line

  • 21. 
    The posterior intercostal arteries are branches of
    • A. 

      The internal thoracic artery

    • B. 

      The subclavian artery

    • C. 

      The aorta

    • D. 

      The highest intercostal artery

    • E. 

      The thoraco-acrominal artery

  • 22. 
    The septamarginal trabecula (moderator band) is associated with the
    • A. 

      Right atrium

    • B. 

      Right ventricle

    • C. 

      Left atrium

    • D. 

      Left ventricle

    • E. 

      Base of heart

  • 23. 
    Which of the following is not associated with the posterior mediastinum
    • A. 

      Vagus nerve

    • B. 

      Esophagus

    • C. 

      Thoracic duct

    • D. 

      Azygos vein

    • E. 

      Phrenic nerve

  • 24. 
    The anterior intercostal arteries are branches of the
    • A. 

      Posterior intercostal arteries

    • B. 

      Internal thoracic arteries

    • C. 

      Mediastinal arteries

    • D. 

      Highest intercostal arteries

    • E. 

      Subcostal arteries

  • 25. 
    The major venous drainage of the heart is into the
    • A. 

      Thebesian veins

    • B. 

      Anterior cardiac veins

    • C. 

      Marginal veins

    • D. 

      Coronary veins (sinus)

    • E. 

      Interior veins