Describe the steps involved in inhalation and exhalation

2 answers:

4 0

For inhalation, your intercostal muscles contract. While doing so, this moves your rip cage outwards and upwards. The diaphragm contracts moving downwards. So, this increases your volume of the chest so the pressure decreases inside the chest. Therefore the air rushes in to balance with the pressure.

For exhalation, it is the complete opposite... So, first off, your intercostal muscles relax so the rip cage moves downwards and inwards. Then, the diaphragm relaxes, and moves upward into a dome-like-shape. This action decreases the volume of your chest so that the pressure increases and air rushes out to balance the pressure.
~Hope this helped :D

prisoha [69]4 years ago

3 0

When you exhale you breathe outwards and when you inhale you breathe inwards. Breathing is performed by the respiratory system, which consists of the lungs, trachea, bronchi and diaphragm. The first step to breathing is inhalation. Inhalation occurs when oxygen-rich air is sucked into the body. The diaphragm initiates inhalation by contracting the muscles. As the muscles contract, the chest cavity becomes larger. With the larger cavity the lungs do not feel pressure from the outside. As the air is pulled into the body, the pressure is again equalized. Once the oxygen is in the blood and ready to be pumped throughout the body, the final step of exhalation must be completed. To exhale, the muscles of the diaphragm relax which adds pressure to the chest cavity and forces air from the alveoli into the bronchioles. The air continues to move through the tubes reaching the bronchi. The air containing the carbon dioxide then travels through the trachea and back out the mouth or nose.

hope it helps!!!

Can you please please choose mine as the brainliest answer as I need it for me to get to the next level.

You might be interested in

Why should room attendants keep quiet while serving an occupied room

Minchanka [31]

To be an active listener and, because it’s considered disrespectful for a servant to speak when not told to.

6 0

3 years ago

When it comes to healthy relationships, communication is the name of the game. List your rules for communicating effectively wit

Mice21 [21]

Answer:

Always show she/he that you are there for them and make them feel loved when around them!

Explanation:

4 0

4 years ago

Read 2 more answers

PLZZ HELP MEEEE I will give brainliest

N76 [4]

Answer:

1. HIV finds the white blood cells, called cd4 cells. HIV gets inside the cd4 cell and makes copies of itself. Then, HIV kills the cd4 cell and the new HIV copies find other cd4 cells to get inside and start the cycle again. HIV kills immune system cells that help the body fight infections and diseases.

2. Untreated, HIV typically turns into AIDS in about 8 to 10 years. Leading causes of death for HIV patients were accidental death and suicid3.

3. There is no effective cure for HIV. But with proper medical care, you can control HIV. Treatment Reduces the Amount of HIV in the Blood

6 0

3 years ago

A client with hodgkin's disease is to receive the cyclic antineoplastic vincristine as part of a therapy protocol. Which mechani

Serga [27]

Cyclic antineoplastic vincristine (Oncovin) will be administered to patients with Hodgkin disease as part of a treatment protocol.

B-lymphocytes, a specific type of lymphocyte, begin to multiply abnormally and begin to accumulate in specific lymphatic system regions, such as the lymph nodes, in Hodgkin lymphoma (glands). You become more susceptible to infection as a result of the damaged lymphocytes losing their ability to fight infection.

<h3> In contrast to the side effects of most chemotherapeutic agents, what is a common side effect of vincristine?</h3>

A chemotherapeutic medication used to treat cancer is vincristine.Weight loss, diarrhea, headaches, nausea, vomiting, constipation, numbness, mouth sores, stomach/abdominal pains or cramps, and many other adverse effects are possible. Hodgkin lymphoma are diagnosed because of a painless, enlarged lymph node in the neck

To know more about chemotherapeutic , visit :

brainly.com/question/7274805

#SPJ4

3 0

2 years ago

What is the difference between myocardial infarction (MI) and cardiac arrest? Are the signs and symptoms different?

alexira [117]

A myocardial infarction (2) has occurred with blockage of a branch of the left coronary artery (1). Myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to a part of the heart, causing damage to the heart muscle.

. A heart attack occurs when the blood supply to part of the heart stops and thus causes a section of the heart muscle to begin to die; whereas a cardiac arrest occurs when the heart stops beating as a whole.

7 0

3 years ago