Ultimobranchial Bodies

Ultimobranchial Bodies: Research and Role in Biology

Introduction:

Ultimobranchial bodies, also known as postbranchial bodies or corpora ultimobranchialia, are small glands located in the larynx region of some animals. These bodies are of particular importance in biology because they perform a number of important functions in the body. In this article, we review the structure and function of the ultimobranchial bodies, as well as research related to their role in various species groups.

Structure and localization:

Ultimobranchial bodies are usually located near the larynx and are associated with the activity of the thyroid gland. They are paired organs consisting of cells of endodermal origin. The ultimobranchial bodies produce hormones known as calcitonin and calcitonin-like peptides, which play a role in regulating calcium levels in the body.

Functions of ultimobranchial bodies:

1. Regulation of calcium levels: The main function of the ultimobranchial bodies is associated with the regulation of calcium levels in the body. Calcitonin, produced by these glands, lowers calcium levels in the blood by inhibiting bone resorption (breakdown of bone tissue) and stimulating calcium excretion by the kidneys. Thus, the ultimobranchial bodies play an important role in maintaining calcium homeostasis in the body.

2. Embryonic development: Ultimobranchial bodies are derived from the pharyngeal branchial arches in embryonic development. They play a role in the formation and development of the larynx and thyroid gland. This indicates the importance of these organs in the process of embryonic morphogenesis.

Research and role in various species groups:

Research on ultimobranchial bodies has primarily been conducted on mammals and birds. In mammals, the ultimobranchial bodies are located near the thyroid gland and play an important role in the regulation of calcium metabolism. In birds, the ultimobranchial bodies are located near the air sac and play a role in the regulation of calcium metabolism, as well as in adaptation to the needs associated with egg formation.

Ultimobranchial bodies are also of interest to scientists in the context of evolution. Studies show that ultimobranchial bodies exhibit significant variability across species groups, indicating their evolutionary plasticity and adaptive significance.

Conclusion:

Ultimobranchial bodies are important organs that perform a number of functions in the body. They play a key role in regulating calcium levels, maintaining homeostasis and ensuring normal functioning of the body. In addition, the ultimobranchial bodies are important in embryonic development, as well as in adaptation to the needs associated with reproductive function.

Further studies of the ultimobranchial bodies will provide a better understanding of their structure, function, and evolutionary significance. This may lead to increased knowledge of the biological processes involved in calcium regulation and embryonic development. In addition, a deeper understanding of the ultimobranchial bodies may be of practical importance for the development of new methods of treatment and diagnosis of various diseases associated with calcium metabolism disorders.

Overall, ultimobranchial bodies are of interest to the scientific community and remain the subject of further research aimed at uncovering their role in biology and their potential practical applications in medicine.

Ultimobrachial bodies (Latin Corpus ultimobrachialis = “furthest metameric body”, from corporeus - “elevated”, “branched”; not to be confused with ultimobrichal worms! This anatomical name was originally used to designate the larger dorsal depression in the medial edge of the premarital body, then was extended to related surfaces and structures, and was later found to be applicable to a variety of formations far beyond the prenuptial region of the skeleton.The analogy with the corresponding formation in insects led to similar definitions in other arachnesozoans and comparative forms) - a group of loose cellular structures on the dorsal surface abdominal trunk of the cremalvers of some arthropods, located distally (posteriorly) in relation to the verrachus point.

The Ultimate bodies have numerous connections to the central nerve array and are surrounded by a pair of pheromone glands. Their functional significance remains unclear. Many researchers believe that the ultimazoral bodies are associated with digestion and excretion. Some sources report the presence of a special gland (omphalse) in the cochlea of ​​the crab's abdominal brain, but this information has not been confirmed.