Apertura thoracis superior –>
superior thoracic aperture
The upper boundary of the bony thorax composed of the first thoracic vertebra and the upper margins of the first ribs and manubrium of the sternum.
Synonym: apertura thoracis superior.
Dictionary > Apertura thoracis superior
You will also like...
![Genetic engineering](https://www.biologyonline.com/wp-content/uploads/2020/02/Genetic-Engineering-Advantages-Disadvantages-252x168.jpg)
Genetic Engineering Advantages & Disadvantages
This tutorial presents the benefits and the possible adverse eventualities of genetic engineering. Know more about this ..
![An artistic depiction of a human embryo](https://www.biologyonline.com/wp-content/uploads/2020/02/Growth-and-Development-of-a-Human-Baby-252x168.jpg)
Growth and Development of a Human Baby
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
![Fossil trilobite imprint in the sediment](https://www.biologyonline.com/wp-content/uploads/2020/02/Insects-252x168.jpg)
Insects
There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..
![Ecological Research Measuring & Analysis](https://www.biologyonline.com/wp-content/uploads/2020/09/Ecological-Research-Measuring-Analysis-300x168.jpg)
Ecological Research: Measuring & Analysis
This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..
![Body temperature regulation by the hypothalamus](https://www.biologyonline.com/wp-content/uploads/2020/02/Temperature-Regulation-in-Animals-168x168.jpg)
Temperature Regulation in Animals
This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..
![Thermographic image of face and neck](https://www.biologyonline.com/wp-content/uploads/2020/02/Regulation-of-Organic-Metabolism-Growth-and-Energy-Balance-224x168.jpg)
Regulation of Organic Metabolism, Growth and Energy Balance
The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the e..