bursa

Các nghĩa

1. túi hoạt dịch

   Any of the many small fluid-filled sacs located at the point where a muscle or tendon slides across bone. These sacs serve to reduce friction between the two moving surfaces.

   Bursitis is inflammation of a bursa, which results in pain, tenderness, and stiffness and in some cases, swelling and redness.

   A bursa may be present deep to coracobrachialis tendon.

2. túi Fabricius

   A diverticulum on the cloaca of young birds, which serves as a lymphatic organ and as part of the immune system, but which atrophies as the bird ages.

   The general relations of the bursa to the cloaca are shown in the two accompanying figures.

   The dark, crescentic area is the opening of the bursa, from which the covering membrane is temporarily withdrawn.

   The bursa is located near the terminal portion of the cloaca and, like the thymus, is a lymphoepithelial organ.

3. túi chứa tinh

   Any of various pouchlike organs for storing semen prior to copulation in the male or for receiving semen in the female.

   That portion of the dilated vas deferens which lies outside the cavity of the genital bursa is called the external seminal vesicle .

   The vagina extends anteriorly over the dorsal side of seminal vesicle to the sperm-filled seminal bursa.

4. túi đựng khăn thánh

   A parament about twelve inches square in which the folded corporal is kept in for reasons of reverence.

Dạng khác

• bursae plural
• bursæ plural