which of the following is the last step that produces an inspiration course hero

Which of the following is the last step that produces an inspiration?

Which of the following is the last step that produces an inspiration? The intra-alveolar pressure becomes lower than the atmospheric pressure.

What are the steps for inspiration?

What are the steps of inspiration?inspiration 1. inspiratory muscles contract.inspiration 2. thoracic cavity volume increases.inspiration 3. lungs are stretched.inspiration 4. intrapulmonary pressure drops.inspiration 5. ... expiration 1.expiration 2.expiration 3.Oct 23, 2019

Which of the following is the last structure that air travels through during inhalation?

When you inhale through your nose or mouth, air travels down the pharynx (back of the throat), passes through your larynx (voice box) and into your trachea (windpipe).Sep 14, 2018

Which of the following is part of inspiration?

The diaphragm contracts and moves down. The rib cage moves up and out. The intercostal muscles pull the ribs outward. Air rushes into the lungs.

What are the four steps of inspiration?

Terms in this set (10)inspiration 1. inspiratory muscles contract. ... inspiration 2. thoracic cavity volume increases.inspiration 3. lungs are stretched. ... inspiration 4. intrapulmonary pressure drops.inspiration 5. air flows into lungs down pressure gradient until pulmonary pressure is 0.expiration 1. ... expiration 2. ... expiration 3.More items...

What is the first step of inspiration?

The first phase is called inspiration, or inhaling. When the lungs inhale, the diaphragm contracts and pulls downward. At the same time, the muscles between the ribs contract and pull upward. This increases the size of the thoracic cavity and decreases the pressure inside.Jul 25, 2020

Which is the correct order of structures that air passes through?

Nasal cavity, trachea, larynx, bronchi air sacs....The correct order of structures through which the air passes in the body is.QuestionThe correct order of structures through which the air passes in the body isType of AnswerVideo & Image7 more rows•Mar 12, 2022

What is the order in which air passes through them?

Pathway of air: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli (site of gas exchange)

What is the name of the structures at the end of the bronchioles where gases are exchanged?

Your trachea divides into your left and right bronchi. The bronchi carry air into your lungs. At the end of the bronchi, the bronchioles carry air to small sacs in your lungs called alveoli. The alveoli perform your body's gas exchange.Jun 21, 2021

What happens during expiration and inspiration?

The processes of inspiration (breathing in) and expiration (breathing out) are vital for providing oxygen to tissues and removing carbon dioxide from the body. Inspiration occurs via active contraction of muscles – such as the diaphragm – whereas expiration tends to be passive, unless it is forced.

What do inspiration expiration have in common?

What do inspiration and expiration have in common? They both use the same pathways. The air travels in the same direction in both. They both end in the lungs.

What are the muscles of inspiration?

The most important muscle of inspiration is the diaphragm; however, the external intercostals assist with normal quiet breathing. Contraction of the diaphragm increases the space in the thoracic cavity and the lungs fill with air from the external environment.Dec 17, 2015