Respiratory System part I

Which is not a function of the respiratory system?

• Gas exchange

• Vocalization

• Regulation of blood calcium

• pH balance

The primary organ responsible for gas exchange is the:

• Pharynx

• Alveolus

• Trachea

• Larynx

Which structure belongs to the upper respiratory tract?

• Trachea

• Larynx

• Nasal cavity

• Bronchioles

Which of the following is part of the lower respiratory tract?

• Pharynx

• Nasal cavity

• Larynx

• Oral cavity

Which of the following is part of the conducting zone?

• Alveoli

• Bronchi

• Respiratory bronchioles

• Alveolar sacs

The respiratory zone begins at the:

• Trachea

• Terminal bronchiole

• Respiratory bronchiole

• Secondary bronchus

Pulmonary ventilation refers to:

• Diffusion of gases between blood and tissue

• Air movement in and out of lungs

• Oxygen binding to hemoglobin

• Transport of gases in blood

Alveolar gas exchange occurs between:

• Blood and brain

• Air and capillaries in the lungs

• Blood and tissues

• Bronchioles and alveoli

Systemic gas exchange occurs in the:

• Lungs

• Heart

• Peripheral tissues

• Nasal cavity

Gas transport is:

• Diffusion of gases across membranes

• Bulk movement of gases through blood

• Muscle contraction for breathing

• Expansion of the lungs