How many nostrils are present in man?

Answer 1

4. 2 you can see, 2 you can't. This was found out by observing how fish breathe. Fish get their oxygen from the water. Most of them have 2 sets of nostrils, a forward facing set for letting water in and a pair of "exhaust pipes" for letting it out again. If humans evolved from fishes, where did the other two go? The answer is that they moved back inside the head to become internal nostrils called choannae (Greek for funnels). These are connected to the throat and are what allow us to breathe through our noses.

Answer 2

Dogs have two nostrils, the same as most mammals on the planet. A dogs nostrils are very important, because a dog uses them to smell. Smelling is one of a dogs most important senses, they use smell to identify everything from food to friends.

Answer 3

In humans, there are typically two nostrils, one on each side of the nose. These nostrils are responsible for allowing air to pass in and out of the respiratory system.

Answer 4

It depends on what species you are.

Human:2

Dog:2

Horse:2

Spider:8

So just about everything has two nostrils exept for the common spider.

Answer 5

Fish have 4 nostrils that are called nares.

Answer 6

That should be four, two internal ones and two external ones.

Answer 7

Four.

Answer 8

five

Answer 9

Just 2.

Answer 10

3