wat is a nervecell and a sperm cell?

Answer 1

In what respect?
Yet more general questions asked by inquisitive ... erm.... well... I shall try to answer...

They are both substancial collections of atoms... formed into molecules... mostly water though a fair number of hydrocarbons and amino acids, among other similar structures.
They're both animal cells... presumably human animal cells in this case... That means they have a cell membrane, nucleus, mitochondria and various smaller organelles.

Aside from that, we have the specifics of those cells:
They're both rather skinny for one thing... lengthy and skinny. Neurones... i.e. nerve cells.... can however be easily as long as the entire length of your forearm... and yet thinner than most cells. Sperm are very much smaller than that.

Feature-wise... nerve cells have dentrites... branching extensions of the cell membrane... at each end. These are to connect to other neurones and transmit signals between them. The signals are transferred through the cell itself along the axon... which is the long, thin bit in the middle.... by means of an ionic differential gradient between potassium and sodium ions. In almost all cases, neurones will be found in bundles (since they're so thin) to cover a wide area and send as much data as possible to and from the brain.
There are different kinds of neurones that serve different functions.... in particular motor neurones (which transmit data from the brain to the body) ... well... whatever the opposite ones... sensory neurones maybe... (which, by whatever name, transmit data from the sensory organs to the brain)... and interneurones... which join the others together inbetween. As I recall, the neurones in the brain are of different types again, but I don't know the slightest thing about those.
Anyhow... I don't think I can tell you much more about nerve cells.


Sperm on the other hand... are male gametes.... produced in vast numbers at very little bodily expense per cell. Each one is basically just a haploid nucleus (one copy of each chromosome) with a flagellum (a 'tail' to propel the cell forward) and just enough cytoplasm and mitochondria to power it for a short journey. They are generated at quite an alarming rate in the testes.... and their entire purpose is to be ejaculated into the female reproductive system and propel themselves forcefully and rather erratically to an awaiting ovum.... Eventually, of the ones that reach the ovum (most die along the way due to the corrosive substances which coat the inside of the uterus), one will get chemically accepted by the larger cell and allowed to fuse the cytoplasms together. The nuclei will then fuse into a single diploid (2 of each chromosome) nucleus.... and the newly fertilised cell will begin to divide. Note however that while the nucleus of the sperm is allowed to fuse with the nucleus of the ovum... the mitochondria that are in the sperm will be destroyed by the new host cell.... hence all the mitochondria you will ever have are near-identical copies of your mother's ones (not perfect copies since mutations can and will occur between generations).


Right... I've had enough of answering this question now...
Off to other things.

Answer 2

Neurons (also known as neurones, nerve cells and nerve fibers) are a major class of cells (parenchyma) in the nervous system whose main role is to process and transmit information. In vertebrate animals, neurons are found in the brain, the spinal cord and in the nerves and ganglia of the peripheral nervous system.

Neurons are typically composed of a cell body, a dendritic tree and an axon. In the classic view of vertebrate neuron function, the cell body and dendritic tree receive electrical signals from other neurons while the axon transmits electrical output signals. For invertebrate neurons, the information flow is less well defined.

Neurons are able to generate and propagate electrical impulses because they have excitable membranes. Neurons make connections with other neurons and transmit information to them via synaptic transmission. Different types of neurons have different shapes, possess specific electrical properties adopted for their function and use different neurotransmitters.

A spermatozoon or spermatozoan (pl. spermatozoa), from the ancient Greek spermato (=seed) and zoan (=living being) and more commonly known as a sperm cell, is the haploid cell that is the male gamete. It joins an ovum to form a zygote. A zygote is a new organism, such as a human being.
Sperm cells contribute half of the genetic information to the diploid offspring. In mammals, the sex of the offspring is determined by the sperm cells: a spermatozoon bearing a Y chromosome will lead to a male (XY) offspring, while one bearing an X chromosome will lead to a female (XX) offspring (the ovum always provides an X chromosome). Sperm cells were first observed by a student of Antoni van Leeuwenhoek in 1677.

Answer 3

a nerve cell (neuron) is the name of the cells found in the central nervous system which includes the brain and the spinal cord. a sperm cell is a sex cell produced by males in the gonads and is involved in reproduction.

Answer 4

lets just say the sperm is renting out the egg, they both play important roles. I'd go sperm though because after all, it is a living thing.

Answer 5

One is neuron and the other is spermatozoa