A specific, learned defense system that involves B and T lymphocytes responding to particular antigens.

What is the main function of lymphatic capillaries?

To absorb excess interstitial fluid and transport it as lymph toward the venous system.

The largest lymphatic vessel that drains lymph from the lower body, left arm, and left side of the head into the left subclavian vein.

What is the function of the spleen in immunity?

It filters blood, removes old red blood cells, and helps activate immune responses.

A fluid produced by type II alveolar cells that reduces surface tension and prevents alveolar collapse.

A muscular tube that serves as a shared passageway for both air (respiratory system) and food (digestive system).

What is the role of the trachea?

To conduct air from the larynx to the bronchi while being held open by C-shaped cartilage rings.

Tiny sac-like structures in the lungs where oxygen and carbon dioxide exchange occurs between air and blood.

Why does the right lung have three lobes while the left lung has two?

The left lung is smaller because it must make room for the heart within the thoracic cavity.

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Term	Definition
Adaptive Immunity	A specific, learned defense system that involves B and T lymphocytes responding to particular antigens.
What is the main function of lymphatic capillaries?	To absorb excess interstitial fluid and transport it as lymph toward the venous system.
Thoracic duct	The largest lymphatic vessel that drains lymph from the lower body, left arm, and left side of the head into the left subclavian vein.
What is the function of the spleen in immunity?	It filters blood, removes old red blood cells, and helps activate immune responses.
Surfactant	A fluid produced by type II alveolar cells that reduces surface tension and prevents alveolar collapse.
Which structure prevents food from entering the larynx during swallowing?	The epiglottis.
Pharynx	A muscular tube that serves as a shared passageway for both air (respiratory system) and food (digestive system).
What is the role of the trachea?	To conduct air from the larynx to the bronchi while being held open by C-shaped cartilage rings.
Alveoli	Tiny sac-like structures in the lungs where oxygen and carbon dioxide exchange occurs between air and blood.
Why does the right lung have three lobes while the left lung has two?	The left lung is smaller because it must make room for the heart within the thoracic cavity.

Created by: user-2006674

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