Week 4_Respiratory System_BSc_2022

Following states would increase respiratory effort, tick all that apply.      

• Fever

• Hypercapnia (build up of CO2 in your bloodstream)

• Sleep

• Hypoxaemia (low levels of Oxygen in your blood)

 

For normal gas exchange in the lung, which of the following is true?

• Oxygen moves into the alveoli because the PO₂ is higher in the blood than in the alveoli

    

• Oxygen moves out of the alveoli because the PO₂ is higher in the alveoli than in the blood

• Oxygen moves into the alveoli because the PO₂ is higher in the alveoli than in the blood

• Oxygen moves out of the alveoli because the PO₂ is higher in the blood than in the alveoli.

The total number of lobes in both lungs are : ____.

 

• 6

• 5

• 4

• 3

 

 

The smallest branches of the bronchial tree are: ____.

    

 

• primary bronchi

• secondary bronchi

• tertiary bronchi

• bronchioles

Paranasal sinuses are normally filled with: ____.

    

 

 

• bone marrow

       

• a serous fluid

• mucus

• air

The structure known as the “Adam’s apple” located in the neck is the: ____.

 

• epiglottis

       

• cricoid cartilage

• glottis

• thyroid cartilage

The upper respiratory tract includes all of the following structures except the: ____.

     

 

• larynx

     

• trachea

• oropharynx

• nasopharynx

Following factors influence respiration: tick all that apply.

 

• 
• 
• 

What happens in inspiration? tick all that apply.

• The external intercostal muscles contract

• The volume of the thorax increases

• Intrapleural pressure falls

• All of the above

 

Nerve control of the Lungs is managed by ________

• Central Nervous System

• Peripheral Nervous System

• Autonomic Nervous System

• None of the above