Biology News
Weight flux alters molecular profile, Stanford-led study finds - EurekAlert (press release)


EurekAlert (press release)
As people pack on pounds or shed excess weight, they exhibit notable changes in their microbiome, cardiovascular system, immune system and levels of gene expression, the study found. The researchers integrated a slew of "omics" profiling techniques to ...
Cosmos
The Scientist

Protein designed entirely from scratch functions in cells as a genuine enzyme - Phys.Org


Phys.Org
This has significant implications for industry, said Justin Siegel, faculty director of the Innovation Institute for Food and Health and an assistant professor of chemistry, biochemistry and molecular medicine at the UC Davis Genome Center, who was not ...

Key player in cell metabolism identified - Science Daily


Science Daily
"However, at this point we can't rule out other possible functions," declares Stracker. Published in Nature Cell Biology, the study presents the results from a collaborative multidisciplinary approach, using state of the art proteomics, metabolomics ...

Respiratory System Functions

Costa Mesa, California - United States

Do you wish to know how the human respiratory system functions? This article will tell you more on the human respiratory system, its parts and functions.

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Livestrong - Five Functions Of The Muscular System
United States

The muscular system in your body is composed of skeletal muscle, cardiac muscle and smooth muscle. Skeletal muscle attaches primarily to your skeleton and moves voluntarily or by reflex. Cardiac muscle is the muscle of your heart and contracts involuntarily. Finally, smooth muscle is found in your blood vessels, eyes, hair follicles and the walls of hollow organs like your stomach and intestines. The primary function of skeletal muscle is to p

Bird Respiratory System
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Article explaining how air sacs play an important part in the gaseous exchange in birds, with many diagrams.

InnerBody:  Respiratory System
United States

Interactive anatomy images and descriptions of the upper and lower respiratory tracts everything from the nasal passages to the lungs.

The Human Respiratory System
United States

The respiratory system helps to breathe - which is inhaling oxygen so that it can be distributed to each cell in the body and collect the waste product carbon dioxide from the cells and expel it back to the atmosphere. The human respiratory system consists of: the nasal passages, Pharynx, Larynx, Windpipe, Lungs. The exchange of the gases - replenishing the blood with oxygen and removing carbon dioxide from it - happens in the lungs. We breathe a

United States

Eleven respiratory simulations are available for download as freeware, including mechanics models, general gas exchange models, Va/Q relationships models, and acid-base balance models.

Introductory Anatomy: Respiratory System
United Kingdom

The word respiration describes two processes. Internal or cellular respiration is the process by which glucose or other small molecules are oxidised to produce energy: this requires oxygen and generates carbon dioxide. External respiration (breathing) involves simply the stage of taking oxygen from the air and returning carbon dioxide to it. The respiratory tract, where external respiration occurs, starts at the nose and mouth. (Description

Dictionary Definitions : Respiratory System
United States

The respiratory system is the set of organs that allows a person to breathe and exchange oxygen and carbon dioxide throughout the body. An example of respiratory system is the human's nasal passages, larynx, trachea, bronchial tubes and lungs.

Coventry University: Human Respiratory System
United Kingdom

This system includes the lungs, pathways connecting them to the outside environment, and structures in the chest involved with moving air in and out of the lungs. Air enters the body through the nose, is warmed, filtered, and passed through the nasal cavity. Air passes the pharynx (which has the epiglottis that prevents food from entering the trachea). The upper part of the trachea contains the larynx. The vocal cords are two bands of tissue t

On-Line Biology Book: The Respiratory System
United States

Introduction to gas exchange, respiratory surfaces, methods of respiration, and other functions.

Human Anatomy & Physiology of the Respiratory System
United States

We often complete the daily tasks of living without thinking about the respiratory system. We breathe in and out and take for granted one of our most vital organ systems. The respiratory system provides the oxygen necessary to sustain life. It consists of both upper and lower respiratory tracts. It is divided into two functions: conducting and respiration.