Human Respiration Vocabulary

Match the following

• Alveoli

• 1. The small air sacs at the ends of the bronchioles that are lined 

  with capillaries.

• Aortic Body

• 1. The small branches of air tubes in the lungs that lead to the 

  alveoli.

• Bronchioles

• 1. The sensory receptor next to the heart that detects high carbon 

  dioxide levels in the blood.

• Bicarbonate Ions

• 1. Special buffer molecules in the blood that carbon dioxide turns into 

  to be transported.

• Bronchitis

• 1. Bacterial infection of the bronchi causing heavy mucus discharge 

  and coughing.

Match the following

• Cellular Respiration

• 1. The sensory receptor in the neck area that detects high carbon 

  dioxide levels in the blood.

• Carbaminohemoglobin

• 1. The breakdown of glucose using oxygen inside the cells to 

  produce energy and carbon dioxide.

• Carotid Body

• 1. Small hairs in the trachea that cause coughing when irritated by 

  foreign objects.

• Cilia

• 1. The enzyme that speeds the production of bicarbonate ions from carbon dioxide and vice-versa.

• Carbonic Anhydrase

• Haemoglobin with carbon dioxide attached.

Match the following

• Emphysema

• The main branches of the respiratory system that enter the lungs.

• Diaphragm

• 1. Damage, collapse and/or blockage of the bronchioles leading to 

  respiratory distress.

• Exhale

• The flap of tissue that covers the trachea during swallowing.

• Epiglottis

• The flat muscular sheet at the bottom of the rib cage.

• Bronchus

• To breathe out.

Match the following

• External Respiration

• 1. The pigment protein in blood that carries oxygen with its central 

  iron atom.

• Hemoglobin

• 1. The exchange of gases between the air and the blood in the 

  alveoli.

• Glottis

• 1. The connections between the ribs that pull the rib cage up to draw 

  air into the lungs.

• Intercostal Muscles

• The process of breathing in.

• Inhale

• The opening to the trachea.

Match the following

• Nasal Cavity

• 1. The two lobes on either side of the heart where external 

  respiration takes place.

• Lungs

• The Adam’s apple (voice box).

• Internal Respiration

• 1. The area where the sinuses and tear ducts drain and where air is 

  filtered by small hairs.

• larynx

• 1. Special secretions of the respiratory lining that help to trap debris 

  and keep the surface moist.

• Mucus

• The exchange of gasses between the blood and body tissue.

Match the following

• Nostril

• Haemoglobin with oxygen attached.

• Oxyhemoglobin

• The area where the esophagus and trachea meet.

• Partial Pressure

• A vacuum.

• Pharynx

• 1. The openings of the respiratory system where air is drawn in and 

  filtered.

• Negative Pressure

• 1. The pressure an individual type of gas exerts in a certain area (its 

  concentration)

Match the following

• Reduced Hemoglobin

• 1. Bacterial or viral lung infection that causes fluid build-up in the 

  alveoli.

• Residual Volume

• 1. Build-up of scar tissue in the lungs due to damage by debris 

  (asbestos, coal dust) and can lead to cancer.

• Pneumonia

• 1. The two membranes surrounding the lungs that prevent collapse 

  of the lungs during breathing.

• Pulmonary Fibrosis

• 1. The amount of air remaining in the lungs after as much air as 

  possible has been forced out.

• Pleural Membranes

• Haemoglobin with hydrogen attached.

Match the following

• Sinus

• 1. A small cavity in the forehead that produces mucus excessively 

  during colds.

• Rb Cage

• The bone structure surrounding the thoracic cavity.

• Strep Throat

• The space in the chest area that contains the lungs and the heart.

• Respiratory Centre

• A bacterial throat infection causing fever.

• Thoracic Cavity

• 1. The nerve centre in the medulla oblongata that controls 

  respiration.

Match the following

• Tuberculosis

• The amount of air moved in and out during normal breathing.

• Vital Capacity

• 1. The cartilage supported tube leading from the pharynx to the 

  bronchi.

• Tidal Volume

• 1. The amount of air that can be forced out of the lungs after taking 

  in as much air as possible.

• Vocal Cords

• 1. The bands of tissue in the larynx that vibrate when air is passed 

  over them.

• Trachea

• 1. A bacterial disease that causes the alveoli to burst and be 

  replaced by scar tissue.