Bursa
1. [noun] bursae are thin, lubricated cushions located at points of friction between a bone and the surrounding soft tissue, such as skin, muscles, ligaments and tendons. A bursa lies between a bone and opposing surface (e.g. skin) like a tiny water balloon with only a few drops of fluid in it, wedged between two surfaces. Bursitis occurs when there is inflammation of the small fluid-sac (or bursa) situated near a joint, for instance a knee or elbow. When an infection occurs the there may be visible swelling and additional fever. See https://www.arthritis-health.com/types/bursitis/what-bursa ; Accessed May 2 2019 https://www.mayoclinic.org/diseases-conditions/knee-bursitis/symptoms-causes/syc-20355501 ; Accessed May 2 2019
Source: https://www.arthritis-health.com/types/bursitis/what-bursa
Frequently Asked Questions
How do bursae in the foot serve as natural shock absorbers during daily movement?
Bursae, which are like tiny fluid-filled cushions, help reduce friction between bones and soft tissues. When you walk or run, these structures act as buffers, minimizing impact on your foot joints.
What common misconception exists about bursae in the foot area?
A frequent misunderstanding is that bursae are only found near major joints like the knee or elbow. In reality, similar cushioning structures exist in the foot, protecting bones and tissues from everyday friction.
How can the Latin origin of the word 'bursa' help recall its function in the foot?
The term 'bursa' comes from Latin, meaning 'purse.' This helps you remember that these structures, much like small pouches, hold fluid to cushion and reduce friction between bones and surrounding soft tissues.