Beginner Transversus Thoracis Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. Where is the transversus thoracis muscle located?
- Within the lung
- External surface of the posterior thoracic wall
- Within the posterior mediastinum
- Internal surface of the anterior thoracic wall
Q2. From which major bone does transversus thoracis arise?
- Humerus
- Scapula
- Clavicle
- Sternum
Q3. Transversus thoracis inserts mainly onto which structures?
- Scapular borders
- Clavicular shafts
- Costal cartilages
- Thoracic spinous processes
Q4. What is the primary action attributed to transversus thoracis?
- Weakly depress the ribs
- Abduct the arm
- Extend the vertebral column
- Elevate the scapula
Q5. Transversus thoracis can assist which phase of respiration?
- Swallowing
- Expiration
- Phonation only
- Inspiration only
Q6. Which nerves innervate transversus thoracis?
- Intercostal nerves
- Accessory nerves
- Vagus nerves
- Phrenic nerves
Q7. Transversus thoracis belongs to which group of muscles?
- Superficial back muscles
- Intrinsic thoracic wall muscles
- Rotator cuff muscles
- Muscles of mastication
Q8. Is transversus thoracis located mainly anteriorly or posteriorly in the thorax?
- Anteriorly
- Only within the mediastinum
- Only at the thoracic inlet
- Posteriorly
Q9. Which thoracic wall muscles are located posteriorly and are functionally related to transversus thoracis as part of the deepest muscle plane?
- External intercostals
- Pectoralis major
- Trapezius
- Subcostal muscles
Q10. How strong is the rib depressing action of transversus thoracis?
- Weak
- Extremely powerful
- It has no effect on the ribs
- It only elevates the ribs