"during expiration, which best describes the role of the diaphragm?"

1 answer:

3 0

During respiration, the diaphragm moves upwards and returns to dome shape from the flattened shape before during expiration.

This movement of diaphragm can decrease the lung volume, increase the pressure inside and thus force the air out. This process is expiration.

However, if we breathe in again, which makes that inhalation, the diaphragm moves downwards into a flat shape so that it can increase the lung volume and thus we can breathe in as much air we can. This process is completely opposite from expiration.

You might be interested in

Explain how human activity, pollution, and acid rain are all related to each other

ICE Princess25 [194]

All of those can potentially harm the earth. Human activity is a cause of pollution, and pollution is the cause of acid rain to some extent.

3 0

3 years ago

A scientist is studying two isotopes of sodium, labeled A and B. In Isotope A, each of the atoms has 11 protons, 12 neutrons, an

Vinvika [58]

Isotopes are variants of a particular chemical element which differ in neutron number (neutral particle)and all isotopes of a given element have the same number of protons (positive particle) in each atom.So isotope B of the sodium will have 11 protons, 11 electrons but it may have a wide range in its number of neutrons.

7 0

3 years ago

During what time period does the balloon drift in a clockwise direction

hjlf

Answer:

The balloon drifts in a counterclockwise direction from 9:00 a.m. to 12 (Midnight) 3.

4 0

3 years ago

A certain Drosophila protein-encoding gene has one intron. If a large sample of null alleles of this gene is examined, will any

Alex

Answer:

a) Yes

b) Yes

c) Yes

d) Yes

Explanation:

a. In the exons?

Yes mutant site will be expected. It will transcript-ed as well and it can be a polypeptide depending on the mutation type.

b. In the intron?

Yes mutant site will be expected. It will be transcript-ed as well and it cannot be a polypeptide

c. In the promoter?

Yes mutant site will be expected. It will not be transcript-ed and it cannot be a polypeptide

d. In the intron-exon boundary?

Yes mutant site will be expected. It will be transcript-ed and it cannot be a polypeptide

3 0

3 years ago

which kingdom of organism is usually multi-celled, heterotrophic and has Cell walls made of cutting divided by opening called se

yKpoI14uk [10]

This is referring to the kingdom of Fungi (sing. Fungus)

6 0

3 years ago