Describe the changes that occur in kidney and bladder function in old age

1 answer:

3 0

<span>The kidney is made up of filtering units called nephrons. The number and size of nephrons slowly decreases with age, the kidneys start to lose its function, meaning, the waste and extra fluid are not filtered out of the body as effectively in older people. The kidneys become smaller with age, Blood flow to the kidneys is also reduced. This also impairs the filtering process.

Another function of the kidneys is to balance the amount of salt and acid in the body. This function also decreases with age, the production and efficiency of hormones that tell the body it is becoming dehydrated declines with age. This poses a risk for dehydration.

Bladder tissue becomes much less stretchable as one gets older. This decreases the amount of urine the bladder can hold. The muscles of the bladder also become weaker, making the bladder unable to squeeze hard enough to get rid of all the urine it contains, so more urine is left in the bladder after a person urinates. These two changes may cause an older person to have to urinate more often.

The sensation of needing to urinate is often delayed in older people. When an older person finally feels the need to urinate, the need may be sudden.</span>

You might be interested in

Science is best describe as

sattari [20]

Carrying out experiments to prove a point and to further knowledge about the world around us and the galaxy we live in

8 0

2 years ago

The Weaver birds from the African savanna exhibit a trade-off between risking starvation and being hunted by predators. As a res

oksano4ka [1.4K]

Vigilance is the natural selection at work.

5 0

3 years ago

Read 2 more answers

In will love biology please help me

Savatey [412]

Answer:

Ive never seen someone with white eyes, so im guessing its that one...

Explanation:

7 0

2 years ago

Part 1 - Pick one abiotic factor and change it dramatically. (Example: remove it completely or increase it A lot)

zubka84 [21]

1. Water is abioitic and is needed by every living organism Soil is abioitic and is needed by plants Trees and other plants release water vapor from their leaves (a process called transpiration) that create humidity (which in turn influences how much rain falls in an area) The climate in an area influences the special adaptations that plants and animals have. For example: warm fur coats and thick layers of fat to keep warm in cold climates, animals in dry, hot climates (desert) have large ears to release heat and cool down. Biotic factors also influence abiotic factors. Animals produce waste (go to the bathroom) which in turn will become nutrients in the soil.
2. decrease heat will affect biotic factors, like animals, warmth.

Hope this helped :)

7 0

3 years ago

Humans developed antibiotics to fight bacterial infections. however, some antibiotics are no longer efective in killing the bact

9966 [12]

Evolutionary theory predicted that bacterial resistance would happen. Given time, heredity and variation, any living organisms including the bacteria will evolve when a selective pressure, in this case an antibiotic is introduced. However it also gives doctors an patient some specific strategies for delaying even more widespread evolution of antibiotic resistance; these strategies include; avoid mild doses of antibiotics over long time periods, don't use antibiotics to treat viral infections, when treating bacterial infection with antibiotics, take all the pills, and also using combination of drugs to treat a bacterial infection.

6 0

3 years ago