Maintaining Life: Necessary Life Functions

Necessary Life Functions

We’ll take a look at what human body actually does.

Like all complex animals, humans must maintain a core set of necessary life functions to survive. These include maintaining boundaries, movement, responsiveness, digestion, metabolism, excretion, reproduction, and grow. In order to survive, humans also need nutrients, oxygen, water and an appropriate atmosphere. We’ll discuss these topics in depth below.

Maintaining boundaries

All organisms must be able to maintain boundaries and separate their internal environment from the external one. For example, each cell in the human body is enclosed by a selectively permeable membrane which allows it to take in substances and excrete waste, all while blocking potentially harmful substances. Additionally, the body itself is protected by the integumentary system, or skin. The layer of skin around our bodies protects our internal environment from the external world.

Movement
The muscular system propels our bodies and allows us to move from one place to another. The skeletal system provides the bony framework our muscles need to pull on as they work to produce movement. Without these features, humans wouldn’t be able to perform necessary life functions to survive.




Responsiveness
Responsiveness is defined as the ability to sense changes in the environment and then respond to them (also called excitability). Responsiveness is an extremely important necessary life function. For instance, if you cut your hand open on a razor blade, your body produces a reflex and you involuntarily pull your hand away from the razor. You don’t have to think about it, your body just naturally pulls your hand away. Many systems within the human body act in this exact same manner.

Digestion
In order for nutrients and minerals to be absorbed into blood , food we eat must be broken down into smaller molecules. The digestive system breaks down ingested food and liquid into smaller molecules our body can absorb. In turn, the nutrient-rich blood is then distributed throughout the body by the cardiovascular system.

Metabolism
Metabolism is a term that includes all chemical reactions that occur within the body. Metabolism is regulated by hormones secreted from (glands) the endocrine system.

Excretion
If the human body is to operate correctly, it must be able to get rid of waste and nonessential items. Several organ systems participate in the excretion of waste products. For instance, the urinary system disposes nitrogenous waste while the digestive system rids the body of indigestible food as feces.

Reproduction
In order to survive, all living organisms must reproduce. The reproductive system is responsible for producing offspring and is directly regulated by hormones of the endocrine system.

Growth
Humans must grow to survive. The scientific term for growth means “constructive activities must occur at a faster rate than destructive ones”.

Survival Needs

Survival needs include nutrients (food), oxygen, water and an appropriate atmosphere.

Nutrients
Nutrients contained in food and liquids contain chemical substances used for energy and cell building. Carbohydrates, vitamins, minerals, proteins, and fats are all vital in maintaining a healthy body. For instance, calcium helps make bones hard and vitamin D is needed in order to produce sufficient amounts of calcium.

Oxygen
Human cells can only survive for a few minutes without oxygen. Chemical reactions that release energy from foods are oxidative reactions and require oxygen. In fact, oxygen is so vital to the human body that it would only last a few minutes without it. The respiratory and cardiovascular systems work in conjunction to make oxygen available throughout the body.



Water
The human body is 60-80% water. Water is the most abundant chemical substance in the body and provides the environment necessary for life. We obtain water through food and liquids and loose it through bodily excretions and evaporation (from the skin).

Appropriate atmospheric pressure
Breathing and gas exchange in the lungs depend on the right type of atmospheric pressure. For instance, on top of Mount Everest (at high altitude), gas exchange can be inadequate for the human body to survive.

Are you a Gambler of Life?

Reproductive Roulette?

It’s a dire prediction and a bold statement, but nutrition and fitness expert and author of The Anti-Estrogenic Diet, Ori Hofmekler, says, "As a species, we’re on a fast track to extinction. In the past few decades, men have lost 50% of their sperm count, and within only one generation the average man's sperm count and testosterone have dropped by 20%. Women are no better. Staggering figures show that most women today are suffering from female disorders and three out of ten women between the ages of 35 to 60 will develop breast cancer."

That paints a pretty dismal picture, but there’s hope for taking back hormonal health. Here’s what Hofmekler has to say about how we got to this point.

If he had to boil it down to one area, it would have to be our over-reliance on highly processed, chemically ladened, industry based foods, goods and products. In a word: xenoestrogens. Xenoestrogens are artificially made endocrine disruptors that have the very real ability to mimic the effects of true estrogen and to negatively interact with our cells.

Our society’s weight problem may exacerbate this, too, since xenoestrogens like to lodge in fat cells where they become even more resistant to breaking down. With over two-thirds of the adult American population overweight or obese, that creates a lot of fat cells for these xenoestrogens to take refuge.

You can find xenoestrogens everywhere, too, including the most common areas:

• Commercially raised animals and animal products
• Canned goods and plastics
• Makeup, lotion, perfumes and other personal care products
• Pharmaceuticals, including oral contraceptives
• Products made of styrofoam
• Laundry and dishwashing detergents and cleansers
• Household cleaners and air fresheners
• Food additives and food preservatives
• Pesticides and herbicides

Unfortunately, many of us encounter more than one of these xenoestrogenic products on a daily basis, and that can lead to a negative synergistic effect from xenoestrogens that can cause problems at the cellular level.

So what can be done? As you might guess, Hofmekler suggests that we minimize the use of these endocrine disruptors as much as possible. You may even need to consult your healthcare professional about this, especially if prescription drugs are in the mix.

It’s important to maintain a healthy weight and blood sugar levels, too. As stated earlier, these xenoestrogens like the comfy lifestyle fat cells provide. Additionally, unbalanced blood sugar can provide a feeder system to increased fat storage. It can also decrease the ability for cells to detoxify and can interfere with proper hormone signals.

While you’re at it, incorporate a seasonal detox. By doing a quarterly cleanse, your liver and gallbladder work more effectively to transport excess estrogen out of the body. Be sure, too, that your body gets the nutrients it needs to remain healthy. Additionally, it’s important to support your pituitary gland with adequate rest, movement and nutrition, says Hofmekler.

And, finally, be sure to get plenty of exercise. It helps with detoxification (such as sweating), supports oxygenation of your cells, can balance blood sugar and can promote healthy hormones. Another perk is that exercise can help your body burn fat more readily and can metabolize excess estrogen.

Reproductive roulette is risky, so stop the hormonal havoc—while there’s still time.

Human Reproduction - 2

WE humans are special and unique species among all in this planet Earth. The delicate balanced ecosystem of our planet can be viewed from any number of perspectives, placing at the centre of the equation any one species or life-cycle.

In this way, bacteria may viewed as the initial origin of life that humans now have to manage as we find our way through the edges of our solar system. Equally, humans may be viewed as complex but nevertheless manageable hosts for the needs of bacteria. With this understanding, please preserve your own body health by not taking drugs/antibiotics which wipe out bacteria in our body .

As all lifeforms adapt and develop within this environment, their interactions can be seen as much as a biological arms of race as they can a co-creative exchange of genetic information, DNA's own dialogue with itself. Yes, your cells do communicate and commune among themselves. Sexual reproduction is the primary means of this dialogue, as it yields offspring that are genetically different from their parents. Most important, however, it does this with a random creativity.

ASPECTS OF HUMAN REPRODUCTION - Apart from rare, perhaps even mythological, exceptions, such as parthenogenesis (virgin births, Jesus Christ), the process of human reproduction is achieved through sexual intercourse.

The relative success of reproduction depends on a number of factors, including the overall health of the parents, the vibrancy of the gametes (egg-female, and sperm-male) themselves and the success of the sperm in finding its way to the uterus and avoiding the spermicidal secretions of the vagina.

It is this spermicidal secretions of the vagina which ensure that once one sperm succeed to meet the egg, all other sperms are eliminated to prevent attack upon the body nerves cells. The anus of the female has no such protective character as the vagina, hence any deposit of sperm in any anus sexual intercourse only cause nerve system under attack and lead to immunity suppression and so-called experts call it AIDS. The gay community also suffer the same fate; it is not the so-called 'virus' from external which cause people to manifest AIDS symptoms.

It is a strange aspect of our human reproduction that committed partners can be less likely to conceive than spontaneous sexual meetings due to the natural spermicidal aspects of vaginal secretions, which become accustomed to a particular partner's sperm while having fewer defences against a new variety.

Such aspects of our human processes can be uncomfortable from a social and interpersonal perspective, and in this way many of our customs to do with reproduction seem to be heavy-handed attempts to manage the biological urges to create new life as well as mediate between the varying psychological needs of men and women as they bring up children.

All species that use sexual reproduction vary in the timing of their sexual maturity and their number of offspring. Such equations of evolution reflect the basic environment of a species and the cusp of any evolutionary challenges. For humans, the size of the infant's head at birth and the aperture of the mother's pelvic girdle
reflect the limits of our current evolutionary status quo.

Gender : the other half of life (part 2)

"Gender : The other half of life "

Primary Sexual Characteristics for male (for female in bracket) are :
1.Prostrate gland. (Ovaries)
2.Seminal vesicles. (Fallopian tubes)
3.Penis. (Uterus)
4.Scrotum. (Vaginal)
5.Testes.

Secondary Sexual Characteristics for male (for female, in bracket) are :
1. Head hair may thin with age ( Head hair more permanent)
2.Longer face ( Rounder face)
3.Facial hair from puberty (Minimal facial hair)
4.Thicker neck (Smaller neck)
5.Broader shoulders (Rounder shoulder)
6.Larger chest (Smaller chest)
7.Minimal breast tissue (Develop breast tissue)
< Why male has nipples though he do not feed the baby like the female? Interested for theological explanation, go to link http://www.propheticrevelation.net/questions/male_nipples.htm

8.Longer arms, straight carrying angle (Shorter arms, curved carrying angle)
9.Bigger muscle (smaller muscles)
10.More body hair (Minimal body hair)
11.Triangular shape to pubic hair (Straight top edge to pubic hair)
12.Narrow hips (Wider hips)
13.Longer legs, straight angle (Shorter legs, curved angle)
14.Larger, blunter feet & hands (Smaller feet & hands)

GENDER: Our human differentiation into male and female is intricately linked with reproduction and sex, but it also governs nearly every aspect pf our lives.

Gender is a fundamental polarity shared by most life forms on this planet Earth. Above the level of bacteria, organisms do not generally swap genetic information from one cell to another. Instead, they develop specialized sex cells - gametes, such as egg (from female) and sperm (from male) - that take on the role of genetic exchange.

For most species, including humans, the production of gametes is linked to the actual gender of the organism, with males generally producing only sperm and females producing only eggs.

The polarity of most species into male and female is determined by the combination of genetic material at conception. Each gamete (egg or sperm) has within it 46 pairs of chromosomes, which, as we are conceived, split down the middle to reconnect with those of our other parent.

SEXUAL CHARACTERISTICS , both primary and secondary, development arises from the influence of sex hormones on the body. These include our musculature, breast development, growth of body hair, voice pitch and bone structure.

While determination of gender happens at conception, its first signs are not apparent until a few weeks into our development.

By our sixth (6th)week of life we have developed the origins of either testes(for male) or ovaries(for female). This is activated by the presence of the male sex hormone dihydrotesterone (di-hydro-testerone, hydro=water), which steers genital development in the direction of the male. Without its action, we are female.

Upon our birth into our parents world, we were already about nine(9) months male or female old. Welcome to our world, son. Welcome to our world, daughter. (smile)

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SOME species of fish are hermaphroditic, functioning as a female for a few years before changing sex to operate as a male.
DNA recombination also forms the basis for gender in fish species, but whereas hormones only prompt and regulate secondary sexual characteristics in humans, they can change the actual gender of some fish. This process seems to accelerate as levels of pollutants, such as detergents and hormone-based medications, increase in our waterways. In humans, such chemical pollution merely reduces the fertility of the male.

MOST species species also link gender to biological function, with the caring and nursing of young being the domain of the female, dear mother. There are other practical reasons for this - for example, the female mammal's provision of breast milk.

?????WORLD NEWS??????MR THOMAS BEATIE GAVE BIRTH TO SUSAN?
MR THOMAS BEATIE, the man who gave birth to a baby last month (JUNE), spoke for the first time of his 40-hour labour, describing it as an "experience of a lifetime".

Mr Beatie,34, who was born a woman, female, had his breasts removed after a partial sex-change operation and lives outwardly as a man. But he had retained his sex organs because he intended to have children one day, the Daily Mail of Bend, Oregon, reported.

He had conceived with sperm from a donor, and was inseminated at home by his 45-year-old wife Nancy, using a do-it-yourself kit.

"Everyone thought I was going to have a caesarean but I always knew I wanted a natural birth and I had one," Mr Beatie said on Thursday, speaking from his home in Oregon.