A bursae is a sack like structure that is filled with viscid fluid. The main purpose of the bursae sack is to protect tendons.
A saclike organ in a bee that stores nectar
Lungs
urinary bladder
yes it reduces friction between bones, and also, synovial fluid reduces friction at the joints as well.
Only a few species of turtles have cloacal bursae that are rich in blood vessels and can be used for gas exchange. The vast majority of turtle species do not either have these cloacal bursae, or if they do, they cannot use them for gas exchange. Please refer to the end of the article I am added to related links.
VacuoleThe saclike storage structure found in both animal and plant cells is the vacuole. A vacuole is a membrane enclosed structure that is filled with water containing various dissolved substances.
VacuoleThe saclike storage structure found in both animal and plant cells is the vacuole. A vacuole is a membrane enclosed structure that is filled with water containing various dissolved substances.
Bursa or Bursae
A saclike structure located inside the ovary.
vacoule
lysosome
A bursa is a sac filled with fluid to protect the tendons (plural bursae).A bursa is an expansion of synovial membrane that is found at sites of potential friction, ie. between your Achilles tendon and your calcaneus (heel bone).Bursae are lubricated on their inner walls by synovial fluid. By rolling between two structures, bursae keep friction to a minimum and prevent damage.
A saclike structure where materials are stored to be use by the cell is called a vacuole. Plants, fungal cells, animals, bacteria, and few protist cells has vacuole.
Cilia
bursae
Extra-capsular bursae are flattened fibrous sacs filled with synovial fluid. They are found between tendons and ligaments and their function is to reduce friction when the joint moves.
Some Synovial joints may have fluid-filled sacs called bursae.