Respiratory System

The respiratory System consists of which of the following structures?

• Lungs, trachea, bronchioles

• Tonsils, thymus, spleen

• Blood, Vessels, heart

Inhalation is the process that draws air into the lungs. How does the muscular system work with the respiratory system to make inhalation possible?

• The chest muscle relaxes to let air flow into the respiratory system

• The diaphragm muscle contracts to expand the chest and draw air into the respiratory system.

• The smooth muscle of the esophagus relax to let air flow into the respiratory system

Gas exchange in the lungs occurs between the blood in the capillaries and the air in the...

• Bronchi

• pharynx

• Alveoli

Which of the following is the best example of homeostasis?

• The respiration rate increasing with exercise

• The chest cavity expanding when the diaphragm contracts

• The biceps muscle relaxes when the triceps muscle contracts

High respiration rate usually indicates that a person needs more...

• Antibodies

• Carbon Dioxide

• Oxygen

The concentration of which gas is higher in exhaled air than in inhaled air.

• Carbon dioxide

• nitrogen

• oxygen

NUMBER 1:

• lungs

• pharynx

• mouth

• alveoli

NUMBER 2:

• Pharynx

• Bronchi

• Alveoli

• Lungs

NUMBER 6:

• Lungs

• Trachea

• Mouth

• Alveoli

NUMBER 3:

• Pharynx

• Trachea

• Bronchi

• Alveoli