Comment se forment les tubercules ?

Comment se forment les tubercules ?

En botanique, un tubercule (du latin tuberculum, une petite bosse) est une tige qui résulte soit de la tubérisation d'entre-nœuds soit de la tubérisation de l'extrémité d'une tige.

Comment sont les tubercules de Montgomery enceinte ?

Montgomery, a pour la première fois décrit les structures de ces petites « bosses », qui ressemblent à des sortes de boutons, apparaissant plus nombreuses sur l'aréole, autour du téton, au moment de la grossesse.

Comment un tubercule de pomme de terre permet la formation de nouveaux tubercules ?

Le tubercule de pomme de terre est un fragment de tige souterraine contenant des réserves. Ces nouveaux tubercules grossissent par accumulation de réserves à partir de substances fabriquées dans les feuilles par la photosynthèse chlorophyllienne. ...

What does tubercle mean?

• TUBERCLE (noun) The noun TUBERCLE has 3 senses: 1. a swelling that is the characteristic lesion of tuberculosis. 2. small rounded wartlike protuberance on a plant. 3. a protuberance on a bone especially for attachment of a muscle or ligament. Familiarity information: TUBERCLE used as a noun is uncommon.

What is difference between "tuberosity" and "tubercle"?

• The difference between tubercle and tuberosity is really only one of convention. Outwith osteology, tubercle can carry different meanings, such as the famous tubercles of Montgomery or the tubercle bacillus.

What is the difference between a tubercle and tuberosity?

• While both share the root word, tuber, meaning rounded, tubercles are smaller round or pointy prominences, usually points of attachment of smaller structures. Tuberosities, on the other hand, are larger and broader and are usually the point of attachment of major structures, ie.

How is 'tuberosity' and 'tubercle' different?

• Difference Between Tuberosity and Tubercle Definition. Tuberosity refers to a moderate prominence where the muscles and connective tissues are attached. ... Anatomy. The tuberosity is a rough, elevated surface, but in contrast, tubercle is a small, rounded process. Size. Generally, the tuberosity is a slightly larger lump on bones, but tubercle is a smaller lump. Examples. ... Conclusion. ...