Respiratory System of Cats Quiz

The video tutorial explains the respiratory system of cats, highlighting the ability to breathe through both the oral and nasal cavities. It describes the separation of these cavities by the hard and soft palates, and the role of the epiglottis in directing food away from the airway. The structure of the trachea, lined with C-shaped cartilage rings, and its division into bronchi is detailed. Differences in lung lobes between cats and humans are compared. The tutorial also covers how thoracic volume changes through intercostal muscles and the diaphragm, an adaptation in mammals for efficient breathing.

What separates the oral and nasal cavities in mammals?

• The larynx

• The trachea

• The hard and soft palates

• The epiglottis

What is the primary function of the epiglottis?

• To increase the volume of the thoracic cavity

• To support the trachea

• To separate the oral and nasal cavities

• To prevent food from entering the airway

Which structure is responsible for directing food away from the airway?

• The larynx

• The trachea

• The epiglottis

• The bronchi

What is the composition of the trachea that allows it to change diameter?

• Smooth muscle only

• C-shaped rings of cartilage and smooth muscle

• Intercostal muscles

• Hard and soft palates

What allows the trachea to maintain its structure?

• Smooth muscle

• C-shaped rings of cartilage

• Intercostal muscles

• The diaphragm

How does the trachea branch as it descends?

• Directly into the lungs

• Into the esophagus

• Into primary bronchi, then secondary bronchi

• Into secondary bronchi only

How many lung lobes do cats have on the right side?

• Four

• Five

• Three

• Two

What is the difference in lung lobes between cats and humans on the left side?

• Both have three

• Cats have three, humans have two

• Cats have two, humans have three

• Both have two

What is the role of internal intercostal muscles?

• To increase the volume of the thoracic cavity

• To support the trachea

• To decrease the volume of the thoracic cavity

• To separate the heart from the lungs

What is the function of the diaphragm in mammals?

• To separate the heart from the lungs

• To support the trachea

• To separate the thorax from the abdominopelvic cavity

• To increase the volume of the thoracic cavity