관절 부위에서 마찰을 줄이기 위해 액체가 들어 있는 주머니 모양의 조직
A small fluid-filled sac or saclike cavity situated in places where friction would otherwise occur, such as between tendons and bones.
예문:
"The doctor diagnosed the patient with inflammation of the bursa in the shoulder joint."
"Repetitive motions can cause the bursa to become swollen and painful, a condition known as bursitis."
"A healthy bursa allows for smooth movement between bones and soft tissues."