Respiratory System Practice

________ is made up of about 20 rings of tough cartilage.

• Trachea

• Esophagus

• Bronchi

• Larynx

________ is the point(s) of entrance for air.

• Nose & Mouth

• Lungs

• Diaphragm

• Trachea

________ is the structure between the pharynx and trachea – contains the vocal cords.

• Larynx

• Esophagus

• Epiglottis

• Bronchi

________ is lined with cells that produce sticky mucus, contains stiff hairs, and moistens and warms the inspired air.

• Nasal Cavity

• Trachea

• Esophagus

• Alveoli

________ are hair-like structures that protrude out of some cells – they are able to move.

• Cilia

• Flagella

• Villi

• Microvilli

________ covers the entrance to the larynx & trachea. It stops food from entering the lower respiratory tract.

• Epiglottis

• Esophagus

• Pharynx

• Uvula

________ are the two structures that branch off of the trachea.

• Bronchi

• Alveoli

• Diaphragm

• Larynx

________ is where gas exchange occurs between the respiratory system and the circulatory system.

• Alveoli

• Trachea

• Bronchi

• Diaphragm

________ is a “dome-shaped” muscle under the lungs that facilitates breathing.

• Diaphragm Muscle

• Biceps Muscle

• Trapezius Muscle

• Quadriceps Muscle

A mesh of ________ surround every alveolus.

• Capillaries

• Veins

• Bronchioles

• Arteries