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30 Cards in this Set
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- Back
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What is so special about the costovertebral joints?
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They are double chambered - connection with both upper & lower border of 2 neighboring vertebra
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Which ribs is not double chambered?
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1, 11 & 12th
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Costovertebral joints consist of 2 joints?
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1. Head of rib -> Body of vertebra
2. Costotransverse joints (rib -> Transverse process of vertebra) |
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Which ribs have a costotransverse joint as well as costovertebral?
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All except 11 & 12th rib
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Rib head joint is strengthened by?
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Radiate ligament of head of rib
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Intervertebral disc is connected to rib how?
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By an intra-articular ligament of head of rib
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Articular surfaces of costotransverse joints?
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Costal tubercle
Costal fovea of transverse process |
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Capsule of costotransverse joints is strengthened by?
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1. Costotransverse ligament
2. Lateral costotransverse ligament 3. Superior costotransverse ligament 4. Lumbocostal ligament (from 1st lumbar to 12th rib) |
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Movements of costotransverse joint?
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Sliding movements for 1st & 6-9 ribs
Rotation for 2-5 ribs |
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Sternocostal joints, where?
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Between ribs & sternum
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Which types of joints do we find in the sternocostal joints?
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Synovial & synchondroses
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Which joints of sternocostal joints are synovial?
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Sternum <-> rib 2-5
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Which joints of sternocostal joints are synchondroses?
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Sternum <-> rib 1, 6 and 7
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Sternocostal joints are strengthened by which ligaments?
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- Intra-articular sternocostal ligament (2nd sternocostal joint)
- radiate sternocostal ligament |
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Name of joints between cartilages of 6-9th rib?
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Interchondral joints
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How many pairs of ribs?
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12
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Which ribs are false ribs and what does it mean?
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Lower 5 are false - they are joined indirectly or not at all with sternum (11-12 not at all, 8-10 indirectly)
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Shape of 1st rib?
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Flattened
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What attach to 1st rib?`
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Scalene muscles
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Bones of sternum?
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Manumbrium
Body Xiphoid process All connected by synchondrosis |
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Where is a sternal puncture done?
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In body of sternum between 2nd & 3rd rib
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The thoracic cage consist of?
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- 12 vertebrae & their intervertebral discs
- 12 pairs of ribs - Sternum |
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The enclosed thoracic cavity has 2 apertures?
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1. Superior aperture - limited by 2 first ribs
2. Inferior aperture - limited by costal arch & xiphoid process |
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Apertures of thoracic cavity; which one is narrow and which one is wide?
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Superior = narrow
Inferior = wide |
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Movement of thoracic cage?
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Expansion & compression
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What happens when the thoracic cage expand?
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Air goes into lungs.
Expansion in : Ventrodorsal & lateral direction Infrasternal angle increase |
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Expansion of thoracic cage possible because?
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1. Mobility of costovertebral joints
2. Elastic costal cartilages permis twisting 3. Increased kyphosis of thoracic column (pressing thoracic column out) |
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What happens when thoracic cage compress?
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Air goes out of lungs.
Depression of ribs, decrease volume. Infrasternal angle decrease |
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The force to move thorax is generated by?
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Intercostal muscles
Scalenous muscles |
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What is Erb´s point?
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A parasternal auscultation points at 3rd intercostal space - cardiac valves
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