Respiratory Anatomy A
What is the beginning of the respiratory tract?
Nasal cavity/nose
What part of the respiratory system swirls and helps warm the air before it enters the lungs?
nasal conchae
What is the name of the mucous secreting, single-celled exocrine gland found in the respiratory system?
goblet cell
Define internal respiration.
The exchange of gas between the blood and the tissues.
What is the name of the serous membrane that surrounds the lungs?
pleura
What is the flap that helps cover the larynx?
Epiglottis
Which of these is not a tonsil location?
a) pharyngeal
b) palatine
c) laryngeal
d) lingual
c) laryngeal
What is the fluid secreted by the Type II alveolar cells that prevent the alveoli from collapsing?
surfactant
Define external respiration.
The exchange of gas between the lungs and the blood.
What is apnea?
temporary cessation of breathing
What part of the respiratory system do the capillaries work directly with?
alveoli
Where are the vocal chords located?
the larynx
How many times does the average person breathe per minute at rest?
12
What is the name for the volume of air that we inhale and exhale passively?
tidal volume
What gas binds to heme component of hemoglobin more readily than oxygen?
carbon monoxide (CO)
What structure is at the end of the conducting zone?
terminal bronchiole
This type of epithelium lines most of the upper respiratory tract.
ciliated pseudostratified epithelium
Does the diaphragm actively contribute to inspiration or expiration?
inspiration
Which gas makes up the largest percentage of the air we inspire?
nitrogen (79%)
What part of the brain houses the respiratory center?
pons and medulla oblongata
What part of the respiratory anatomy is made of lymphatic tissue?
tonsils
Name the 3 parts of the pharynx.
Nasopharynx
Oropharynx
Laryngopharynx
When thoracic volume increases, what happens to the intrapulmonary pressure?
decreases
What does MVR stand for?
minute ventilation rate -- the amount of air moved in one minute
What is the term for the space where air is trapped in the conducting zone?
anatomical dead space