Question

In: Anatomy and Physiology

Place the correct word into the sentence to describe the muscles of respiration. a. elevate b....

Place the correct word into the sentence to describe the muscles of respiration.
a. elevate

b. depress

c. flex

d. extend

1. The internal intercostals depress (wrong answer) the ribs and expand the thoracic cavity during inspiration.

2. The external intercostals elevate (wrong answer) the ribs causing a partial vaccuum effect resulting in an influx of air.

I put these answers in but they are wrong need help

Solutions

Expert Solution

1.The internal Intercoastal muscles depress the ribs and shrink the thoracic cavity during Expiration.

(During inspiration internal intercoastal muscles are relaxed,External intercoastal contracts which elevate the ribs and cause Increased lung volume decreased Pressure and so the air Flows in)

2.The External Intercoastal muscle Elevate the ribs and expand the thoracic cavity during inspiration causing a partial vaccuum effect resulting in an influx of air. The internal intercostal muscles are responsible for forced exhalation. They depress the ribs and decrease space in the chest cavity

When you inhale the internal intercostal muscles relax and the external intercostal muscles contract, pulling the ribcage upwards and outwards. the diaphragm contracts, pulling downwards. lung volume increases and the air pressure inside decreases.

Remember that-

1.The internal intercostals bring the ribs down during forced expiration.

2.The external intercostals elevate the ribs in inspiration.


Related Solutions

Insert the correct word to complete each sentence. Not all terms will be used.
Insert the correct word to complete each sentence. Not all terms will be used. 
1. In a tabular form, list the muscles of respiration and their nerve supply 2. Describe...
1. In a tabular form, list the muscles of respiration and their nerve supply 2. Describe about the venous drainage of the thoracic cavity 3. Write about the surface anatomy of the lungs and pleurae
A. Choose the word that makes this sentence correct: The higher/lower the narrow-sense heritability of a...
A. Choose the word that makes this sentence correct: The higher/lower the narrow-sense heritability of a trait, the faster you would expect that trait to respond to selection. B. Explain your answer from part A. Identify the equation you could use to predict the response of a trait to selection (1 pt.). Describe mathematically how changing the narrow-sense heritability would lead to the outcome you identified in part A
Complete each sentence discussing the cardiac conduction system. Then place the sentences in the correct order...
Complete each sentence discussing the cardiac conduction system. Then place the sentences in the correct order to follow the path of impulses through the heart
- Put the mark (√) for the correct sentence and mark (X) for the wrong sentence...
- Put the mark (√) for the correct sentence and mark (X) for the wrong sentence with correction of wrong. 1- A mutation is a change in the DNA sequence. The change is always harmful.               (      ). 2- The mutation in the following DNA (AGTTACCAGGC to AGTTTACCAGGC) corresponds to a deletion                                                                                                       (      ). 3- A 3′ cap is formed by adding a G to the terminal base of the transcript via a 5′–5′ Link (      ). 4- The GU-AG rule...
Describe how gas exchange (O2 & CO2) takes place in the tissues during internal respiration.
Describe how gas exchange (O2 & CO2) takes place in the tissues during internal respiration.
A palindrome is a string of characters (a word, phrase, or sentence) that is the same...
A palindrome is a string of characters (a word, phrase, or sentence) that is the same regardless of whether you read it forward or backward – assuming that you ignore spaces, punctuation and case. For example, Race car is a palindrome. So is A man, a plan, a canal: Panama. 1. Describe how you could use a stack to test whether a string is a palindrome. 2. Describe how you could use a queue to test whether a string is...
which belongs to each sentence? In [external/ or cellular] respiration, these gases are exchanged between the...
which belongs to each sentence? In [external/ or cellular] respiration, these gases are exchanged between the body's tissues and the outside environment by way of the respiratory system. In [ external/ or cellular] respiration, these gases are used and created by the metabolic processes of the cells. [alveolar capillary membranes, type 2 alveolar cells, type 1 alveolar cells] make up the main structure of the alveolar wall. The walls of the alveoli  are very thin, separated from the capillary vessels by...
1. A. what muscles are used for setting a volleyball? B. what muscles are agonist for...
1. A. what muscles are used for setting a volleyball? B. what muscles are agonist for setting a volleyball? C. what muscles are antogonists for setting a volleyball? D. what neeves are used for setting a volleyball? 2. A. what muscles are used for throwing a ball? B. what muscles are agonist for throwing a ball C. what muscles are antogonists for throwing a ball? D. what neeves are used for throwing a ball?
where does cellular respiration take place? A. Chloroplasts B. Mitochondria C. Nucleus D. ER E. Golgi
where does cellular respiration take place? A. Chloroplasts B. Mitochondria C. Nucleus D. ER E. Golgi
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT