Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain the Intercostal Muscles
Look at Figure Can you spot the intercostal muscles?
Yes, there are 11 pairs of intercostal muscles. The intercoastal muscles are the muscles between the ribs which contract during inspiration to increase the volume of the chest cavity. They are located in the spaces between the ribs. They are arranged in two layers called the external intercostal muscles and the internal intercostal muscles.
1. The external intercostal muscle fibres extend in a downward and forward direction from the lower border of the rib above to the upper border of the rib below.
2. The internal intercostal muscle fibres extend in a downward and backward direction from the lower border of the rib above to the upper border of the rib below. They cross the external intercostal muscle fibres at right angles. The intercostal muscles are stimulated to contract by intercostal nerves.
During inspiration, the intercostal muscles contract. They move upwards and outwards causing enlargement of the thoracic cavity as shown in the Figure.
During expiration, the volume of thoracic cavity is decreased by relaxation of diaphragm and intercostal muscles which results m increase in thoracic pressure and pressure of lungs. As a result, air is expired from lungs to the atmosphere.
explain what ausubel''s theory say about learning
Explain the functions of Multicellular Organism Multicellular organisms are specialized quite similar to a team that does a lot of work efficiently as compared to a single pers
Answer the following questions: (a) What are the objectives of the Bischoff PBPK model? What useful predictions is the model capable of making? How is the model able to transla
What Are the Constituents of the Intestinal Juice? Intestinal juice is also called succus entericus. The word succus means juice and entericus means intestinal. The digestive j
write an essay about electrical energy conservation
What is a hypothesis? Ans) A hypothesis is a postulation as to what could be the case; it is a suggestion as to something that precisely models and describes some aspect in re
how is ecology related to other discipline?
what is diffrence between rh positive and rh negative
Ask question #Minimum 100 wordsaccepted# examine the relationship between logic and philosophy
Observing the phases of the moon Over the time of a lunar month have the children make nightly observations and illustrate drawings of the moon. Start at new moon and continue
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd