Quotes About Physiology

Cells in the body form into tissues, of which there are four basic kinds: muscular, nervous, epithelial, and connective.

the condition of the skin reflects the condition of the grand regulator of the body, the hypothalamus

The characteristic symptoms of atrophy include a dry tongue. In

The object of biology is to grasp that which makes a living being a living being, that is, not--according to the realist postulate common to both mechanism and vitalism--the superposition of elementary reflexes or the intervention of a 'vital force,' but an indecomposable structure of behavior. It is by means of ordered reactions that we can understand the automatic reactions as degradations. Just as anatomy refers back to physiology, physiology refers back to biology.

The living physiology of the nervous system can only be understood by starting from phenomenal givens.

Women are much more sensitive. We know that emotionally but their organs respond to the same degree.

In short, what Brown, Enquist, and West are saying is that evolution structured our circulatory systems as fractal networks to approximate a "fourth dimension" so as to make our metabolisms more efficient. As West, Brown, and Enquist put it, "Although living things occupy a three-dimensional space, their internal physiology and anatomy operate as if they were four-dimensional … Fractal geometry has literally given life an added dimension.

Japanese researchers at Chiba University found that a daily fifteen-minute walk in the woods caused significant decreases in cortisol, along with a modest drop in blood pressure and heart rate. Physiologists believe our bodies relax in hushed natural surroundings because we evolved there; our senses matured in grasslands and woods, and remain calibrated to them. A

Try this at home: Measure your heart rate before and after drinking two cups of water. Within ten minutes of drinking the water, your heart rate should slow by about four beats per minute, and by fifteen minutes, you should be down six or seven beats.

Obesity may simply be a normal response to an abnormal environment.

Millions of years before we learned how to sharpen spears, mill grains, or boil sugarcane, our entire physiology is presumed to have evolved in the context of eating what the rest of our great ape cousins eat—leaves, stems, and shoots (in other words, vegetables), fruits, seeds, and nuts.

men's brains naturally go into a rest state more than women's brains do. Women's brains don't rest or deactivate the way men's brains do.

For the vast majority of people, dieting just doesn't work. It fails because of our physiology; the body plays a game of sabotage by lowering its metabolism or otherwise undercutting our efforts. It fails because life intervenes, with layoffs or new babies or sick parents. It fails because no amount of willpower can be sustained forever.

Spontaneous smiles are different. They utilize a totally different neurologic hardware that is diffuse and arises mostly out of the subcortex and something called the extra-pyramidal system.

So before you are aware that you're thinking about moving your arm, your brain is at work preparing to make that movement!

There's nothing in the mechanical world that matches the sophistication, complexity, and multi-tasking ability of the foot

La vida sexual del hombre se divide en dos fases: la primera, en la que eyacula demasiado pronto, y la segunda, en la que ya no se le pone dura. Durante

La única verdad es el hombre fisiológico, el que no habla, el que no miente ...»

The chemical structure of the K+ channel at its mouth strips off the water shells surrounding K+. Thus, K+ becomes smaller than Na+ and can pass through the channel, whereas Na+ cannot do so.

[I]t seems as if pain were the prayer of the nerve for healthy blood.

Doctors and nurses will never understand your romantic feelings. Because for them the heart is only there to pump blood throughout the body, they cannot see anything beyond their nose. They also cannot point to the source of love in the body.

Whatever you think or feel in your head, the body will follow. It is ready to take orders from the brain or the central nervous system.

For it is a fact that men must ejaculate in order to reproduce (although science may soon remove this necessity.) Women, on the other hand, do not need to achieve orgasm to reproduce. Men, therefore, have the clear advantage here, in that most of them find it very easy work to achieve sexual satisfaction.

The ovaries know no bounds. They are the primary source of sex hormones that sexualize the body. Before the ovaries are able to serve up a viable egg, they are quite adept at dishing out the sex hormones. The sex hormones cause pubic hair to grow, fat to gather on the breasts and hips, the pelvis to widen, and eventually menstrual blood to flow.