Question

which of the following combining forms does not mean chest?
thorac/o-
steth/o-
asthm/o-
pector/o-
question 58
difficult, painful, or painful respiration due to lung disease is known as:
expectoration.
apnea.
tachypnea.
dyspnea.
question 59
parenchyma refers to the:
wall of the thoracic cavity.
respiratory mucosa.
membrane covering the lungs.
functional cells of an organ.

Explanation:

• For the first question:
• thorac/o - means chest. For example, “thoracotomy” is an incision into the chest.
• steth/o - means chest. “Stethoscope” is an instrument used to listen to sounds in the chest.
• asthm/o - means “to pant” or is related to “asthma” (a respiratory condition, not directly meaning chest).
• pector/o - means chest. “Pectoralis major” is a muscle in the chest area.
• For Question 58:
• expectoration is the act of coughing up and spitting out material from the respiratory tract.
• apnea is a temporary cessation of breathing.
• tachypnea is rapid breathing.
• dyspnea is difficult or labored breathing, which matches the description in the question.
• For Question 59:
• The wall of the thoracic cavity is related to the structure of the chest cavity, not parenchyma.
• Respiratory mucosa is the lining of the respiratory tract.
• The membrane covering the lungs is the pleura.
• Parenchyma refers to the functional cells of an organ (as opposed to the stroma, which is the supporting tissue).

Answer:

• First question: asthm/o -
• Question 58: dyspnea
• Question 59: functional cells of an organ