Human Respiratory System

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Questions and Answers

What is the role of contraction of skeletal muscles in deglutition?

To produce speech sounds

To assist in swallowing (correct)

To fight against foreign invaders

To relax the pharynx

What is the primary function of the pharynx?

To serve as a passageway for air and food (correct)

To house the skeletal muscles

To produce speech sounds

To participate in immunological reactions

What is the role of the tonsils in the pharynx?

To participate in immunological reactions (correct)

To aid in digestion

To regulate breathing

To participate in speech production

What is another function of the pharynx besides serving as a passageway?

To provide a resonating chamber for speech sounds Signup and view all the answers

What is the relationship between the pharynx and the digestive system?

The pharynx serves as a passageway for food Signup and view all the answers

What is located anterior to the esophagus?

Trachea Signup and view all the answers

Where does the trachea extend from?

Larynx Signup and view all the answers

At which thoracic vertebra does the trachea divide into right and left primary bronchi?

T5 Signup and view all the answers

What is the result of the trachea dividing at the superior border of the fifth thoracic vertebra?

Division into right and left primary bronchi Signup and view all the answers

What is the relationship between the trachea and the esophagus?

The trachea is anterior to the esophagus Signup and view all the answers

What is the primary function of the respiratory system?

To filter, warm, and moisten air and conduct it into the lungs Signup and view all the answers

What is the pharynx lined with?

A mucous membrane Signup and view all the answers

What is the respiratory zone?

Tubes and tissues within the lungs where gas exchange occurs Signup and view all the answers

What type of muscles help keep the pharynx patent?

Skeletal muscles Signup and view all the answers

What is the role of the bronchi and bronchioles?

To conduct air into the lungs Signup and view all the answers

What is the final destination of the air in the respiratory system?

The lungs Signup and view all the answers

What is the function of the skeletal muscles in the pharynx?

To keep the pharynx patent Signup and view all the answers

What is the wall of the pharynx composed of?

Skeletal muscles and a mucous membrane Signup and view all the answers

What is the process of exchanging oxygen and carbon dioxide?

Gas exchange Signup and view all the answers

What is the shape of the pharynx?

A tube Signup and view all the answers

What is the main function of the larynx?

To produce sound Signup and view all the answers

What is the role of the skeletal muscles in the pharynx during swallowing?

They help to keep the pharynx patent Signup and view all the answers

What is the direction of food movement during deglutition?

From the pharynx to the esophagus Signup and view all the answers

What is the importance of the pharynx in the digestive system?

It is a common passage for both food and air Signup and view all the answers

During deglutition, which of the following occurs?

The larynx moves upwards and the epiglottis closes the trachea Signup and view all the answers

What is the role of the pharyngeal muscles in deglutition?

To contract and propel food through the pharynx Signup and view all the answers

What is the result of the coordination of the pharyngeal muscles during deglutition?

Food is propelled into the esophagus Signup and view all the answers

Study Notes

Respiratory System Components

The respiratory system consists of the nose, nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, and terminal bronchioles.
These components work together to filter, warm, and moisten air and conduct it into the lungs.

Respiratory Zone

The respiratory zone is composed of tubes and tissues within the lungs where gas exchange occurs.
The wall of the respiratory zone is composed of skeletal muscles and is lined with a mucous membrane.
Relaxed skeletal muscles help keep the pharynx patent.

Pharynx Functions

The pharynx functions as a passageway for air and food.
It provides a resonating chamber for speech sounds.
It houses the tonsils, which participate in immunological reactions against foreign invaders.
The pharynx is located anterior to the esophagus and extends from the larynx to the superior border of the fifth thoracic vertebra (T5), where it divides into right and left primary bronchi.