Anatomy
What are the three major parts of the respiratory system
airway, lungs, muscles
What is the primary function of the respiratory system?
exchanging respiratory gasses between the blood and external environment
Respiration includes how many separate events?
4
What is a reflex or voluntary movement of air? Give an example.
Reflex or voluntary movements of air. Sneeze, cough, hiccup, yawn, laughing
What is tidal volume?
the amount of air that moves into and out of the lungs during normal quiet breathing
The larynx is also known as the
voicebox
the trachea is also known as the
windpipe
Does the thoracic cavity size increase or decrease during inspiration?
increase
What muscles help with inspiration
diaphragm and intercostal muscles
Q: What do the medulla and pons determine?
the rate and depth of respiration
Right lung is divided into how many lobes
3
left lung is divided into how many lobes
2
What does breathing depend on?
Volume changes in thoracic cavity..leads to pressure change
What is respiratory capacity
how much air moves into and out of the lungs under different conditions
Does increased CO2 Lower or raise the pH
lowers the pH levels
What does the trachea divide into?
Primary Bronchi
What do the respiratory bronchioles lead into?
Alveoli (alveolus singular)
What is Inspiratory Reserve Volume
The amount of air that can be inhaled forcibly after a normal inhalation
What is Expiratory Reserve Volume
The amount of air that can be forcibly exhaled after a normal exhalation
What kind of receptors in the bronchioles and alveoli send messages to the medulla?
Stretch Receptors
What divides the nasal cavity?
Nasal Septum
What is the surface of each lung covered with? (be specific)
visceral pleura
What are the types of factors that influence respiration?
physical, conscious, emotional, and chemical
What does residual volume DO? (not the definition)
keeps alveoli inflated
What is the normal, average respiration rate?
12-15 breaths/minute