Search found 728 matches

by biostudent84
Tue Nov 22, 2005 12:46 am
Forum: Human Biology
Topic: Reminder about on-line diagnosis
Replies: 10
Views: 46270

Definetly a good point. Diagnoses over the internet are difficult at best. And no one here, I believe, is a health professional that performs diagnoses. We don't mind helping you find a general direction to go in, but if you have a serious medical problem...see a real doctor ;)
by biostudent84
Fri Nov 18, 2005 12:41 pm
Forum: General Discussion
Topic: Congrats Everyone
Replies: 54
Views: 244517

That's kind of neat! Thanks everyone!
by biostudent84
Fri Nov 18, 2005 12:40 pm
Forum: Evolution
Topic: Origin of life
Replies: 236
Views: 158181

Scientists still agree that there are holes in this theory. But they -are- working to fill those holes.
by biostudent84
Fri Nov 18, 2005 12:38 pm
Forum: Physiology
Topic: Excretion
Replies: 12
Views: 17616

Feces is the excretion of undigested food from the digestive tract.

Urine is the excretion of metabolic waste from the urine tract (which recieved the waste from the cardiovascular system).
by biostudent84
Fri Nov 18, 2005 12:36 pm
Forum: Human Biology
Topic: Mouth Ulcers
Replies: 8
Views: 7466

ulcer in stomach is caused by bacteria. What bacteria? I don't know, but that's what this year noble price is about Not all ulcers are caused by this. Some are caused by overproduction of stomach acid. But this overproduction is not caused by stress...it is caused by a failure of the pancrease to r...
by biostudent84
Fri Nov 18, 2005 12:34 pm
Forum: Human Biology
Topic: Suppose we decode the laws
Replies: 3
Views: 2325

even if we can make organs, that's kinda hard to live forever, unless you are replacing every single cell in the body. as we age, our gene become more mutated and that's pretty hard to fix. Also don't forget about loss of neurons in the brain. We can't replace those individially, and even if we cou...
by biostudent84
Thu Nov 17, 2005 6:04 pm
Forum: Human Biology
Topic: transfusion of blood
Replies: 21
Views: 12263

Re: transfusion of blood

What if someone who has cancer and he doesnt know about, will be giving transfusion of blood to another one. Doesnt exist any danger that some cancer cell (or more cancer cells) wandering in his blood cycle will pass to the body of receiver and will initiatate an uncontroling proliferation. Or does...
by biostudent84
Wed Nov 16, 2005 10:28 pm
Forum: Human Biology
Topic: Haemoglobin
Replies: 8
Views: 6567

Ah the oxygen dissociation curve. By far the most stupid graph ever created. I mean who would have two axis essentially showing the exact same thing? Navin is right its the exercising muscles. I would not agree with the excercising muscles. Blood coming away from those capillaries normally has a pa...
by biostudent84
Wed Nov 16, 2005 10:22 pm
Forum: Human Biology
Topic: Birth control
Replies: 28
Views: 15117

Not sure what is more wrong...you saying that...or him telling you that it broke in the first place...
by biostudent84
Wed Nov 16, 2005 10:19 pm
Forum: Human Biology
Topic: Mouth Ulcers
Replies: 8
Views: 7466

Most mouth ulcers that I have come in contact with are caused by a viral infection. Usually these kinds of ulcers are referred to as "Kankar sores." A little vinegar swished around in the mouth will usually "kill" the viruses in a way that is not painful to the person.

Kyle
by biostudent84
Tue Nov 15, 2005 10:30 pm
Forum: Human Biology
Topic: Blood Pressure
Replies: 7
Views: 9433

The diastolic pressure is the pressure of the blood when the ventricles contract and the auricles (atriums) fill with blood.

Systolic pressure is the pressure of the blood when the auricles contract and the ventricles fill.
by biostudent84
Tue Nov 15, 2005 10:26 pm
Forum: Human Biology
Topic: meiosis disadvantages
Replies: 6
Views: 16078

Dr.Stein wrote:One of disadvantages is that the characteristics of offsprings will be different from their parental.


I would challenge that point. The laws of biology clearly state that the more diversity there is, the healthier a given system will be.