Biology:Bucket handle movement
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Short description: Respiratory movement
Bucket-handle is a movement of ribs that results in change in transverse diameter of the thorax.[1]
Definition
One of the most important functions of ribs and diaphragm is the change in volume of thorax that helps inspiration and expiration.[2] In general, the ribs move around two axes.[3] As the anterior end of ribs is about 4 cm lower than the posterior end, the middle part of rib is lower than anterior and posterior ends. Movement at costovertebral joints 7 to 10 about an anteroposterior axis results in raising and lowering the middle of the rib, the Bucket-handle movement. In elevation, this increases the transverse diameter of the thorax.[3][4]
See also
References
- ↑ "28 : The Chest Wall and Pleura". http://www.oganatomy.org/projanat/gross/28/six.htm.
- ↑ Drake, Richard L.; Vogl, Wayne; Tibbitts, Adam W.M. Mitchell; illustrations by Richard; Richardson, Paul (2005). Gray's anatomy for students. Philadelphia: Elsevier/Churchill Livingstone. ISBN:978-0-8089-2306-0.
- ↑ 3.0 3.1 "Chapter 20: The thoracic wall and mediastinum". https://www.dartmouth.edu/~humananatomy/part_4/chapter_20.html.
- ↑ "Figure 20-7". http://www.dartmouth.edu/~humananatomy/figures/chapter_20/20-7.HTM.
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