Mehanizmi termoregulacije

undergraduate thesis

• Title (english): Mechanisms of thermoregulation
• Author: Tea Duvančić
• Mentor: Vesna Benković (mentor)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2016, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Termoregulacija se odnosi na različite mehanizme kojima se tjelesna temperatura održava konstantnom. Cilj rada bio je istražiti podjele organizama vezane uz njihovu termalnu fiziologiju te najčešće mehanizme koje pojedine skupine koriste u svrhu termoregulacije. Životinje se dijele na ektoterme, čija temperatura tijela ovisi o okolini, i na endoterme, koji toplinu proizvode vlastitim metablizmom zbog čega se njihova tjelesna temperatura može značajno razlikovati od one okoliša. Beskralježnjake, ribe, vodozemce i gmazove smatramo ektotermnima. Njihovi se termoregulatorni mehanizmi uglavnom svode na bihevioralne, iako postoje i fiziološki poput proizvodnje topline drhtanjem mišića. Ptice i sisavci su endotermni i imaju složenije i djelotvornije mehanizme održavanja tjelesne temperature. Osim prema načinu proizvodnje topline, organizme dijelimo i obzirom na konstantnost temperature tijela. Pritom razlikujemo organizme s relativno konstantnom (homeotermi) i one s promjenjivom temperaturom tijela (poikilotermi).

Abstract (english)

Thermoregulation refers to different mechanisms which are used to maintain a constant body temperature. The purpose of this seminar was to explore animal classification based on their thermal physiology and most commonly used thermoregulation mechanisms within different groups. Animals are divided into ectotherms, whose body temperature depends on the environment, and endotherms, who produce heat using their own metabolism which provides them with opportunity to have body temperature significantly higher than that of the environment. Invertebrates, fishes, amphibians and reptiles are considered to be ectothermic. Their thermoregulatory mechanisms mostly come down to those behavioural, although there are some physiological ones such as producing heat by shivering muscles. Birds and mammals are endothermic and they have more complex and effective mechanisms for maintaining body temperature. Apart from classifying animals based on how they produce heat, we can group them considering constancy of the temperature of their bodies. We distinguish organisms with relatively constant body temperature (homeotherms) and those with variable temperature (poikilotherms).

• Keywords: termoregulacija; mehanizmi termoregulacije
• Keywords (english): thermoregulation; mechanisms of thermoregulation
• Language: croatian
• URN:NBN: urn:nbn:hr:217:429384
• Study programme: Title: Molecular Biology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) molekularne biologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) molekularne biologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-01-02 09:03:44