Tag: The Designed Body
Understanding Cardiovascular Function: The Vital Role of Sodium
The last several articles in this series considered how the body distributes and controls its water content.
Understanding Cardiovascular Function: Beyond Irreducible Complexity
When it comes to controlling the body’s water content, life is a bit more complicated than evolutionary biologists would have us believe.
Understanding Cardiovascular Function: An Irreducibly Complex System for Controlling Water Content
Evolutionary biology must explain how life actually works, not just how it looks.
Understanding Cardiovascular Function: The Challenge of Maintaining the Body’s Water Content
In dealing with the laws of nature, our body is constantly losing water, mainly through respiration, perspiration, and the formation of urine.
Understanding Cardiovascular Function: How Water Stays Within the Circulation
The force that opposes filtering water out of the circulation by the hydrostatic pressure is osmosis.
Understanding Cardiovascular Function: How Water Is Distributed in the Body
Water is the body’s most abundant molecule, making up about 60 percent by weight.
Solving the Problem of Iron: Acquisition, Transport, and Control
It’s the iron (Fe) in the hemoglobin molecule to which O2 actually attaches and enables it to be transported in the blood.
How the Body Solves the Problem of Oxygen Transport
When a person’s level of hemoglobin drops below the normal range, the result is anemia.
Understanding Respiration: Why Real Numbers Can Mean Debility and Death
How well has evolutionary biology explained the gradual development of the respiratory system?
Understanding Respiration: Why Real Numbers Really Matter
For our ancient ancestors, being able to bring this much O2 into the body would have been the difference between eating or being eaten.