Lungs
Respiration
Breathing
Misc.
Review Questions
100
How many lobes does each lung have?
Right = 3 Left = 2
100
Where does cellular respiration occur?
Mitochondria
100
Air enters the body where?
Mouth and/or nose
100
What body cavity can the lungs be found in?
Pleural
100
What are the 3 formed elements in blood. (scientific names for bonus)
Erythrocytes (RBC), Leukocytes (WBC), and platelets
200
What fluid lubricates the lungs?
Serous
200
What is internal respiration?
transfer of oxygen from blood to the body cells and transfer of waste and carbon dioxide from body cells to blood
200
What is the main function of the nasal concha?
Support the mucus membrane
200
What are the organs of the upper respiratory tract?
Nose, nasal cavity, sinuses, pharynx
200
What are the 3 main steps in hemostasis.
Vascular spasm, platelet plug formation, and blood clotting (coagulation)
300
Where does air go after it leaves the trachea (when inhaling)?
Primary Bronchi
300
What is external respiration?
Gas exchange between the air and blood
300
Where does the trachea lie in relation to the esophagus?
The trachea is ventral to the esophagus
300
What are the organs of the lower respiratory tract?
Larynx, trachea, bronchial tubes, lungs
300
Where are atrioventricular valves located?
They are located between the atria and ventricles
400
What structure resembles a bunch of grapes?
Alveoli
400
The taking in of air is called what?
Inhalation
400
What happens to your respiration rate when Carbon dioxide levels increase?
It increases you breath faster
400
What is the function of the mucus membrane that lines the nasal cavities?
moisten and warm the air
400
Trace a drop of blood from the lungs to the aorta (include valves)
Lungs -> Pulmonary Veins -> Left Atrium -> Bicuspid (AV) Valve, Left Ventricle, Aortic Valve -> Aorta
500
Why is the first breath of a newborn the most difficult?
Lack of surfactant Did not use lungs in the womb, so they are not inflated.
500
The respiratory membrane (at the alveoli) is made of what type of cells?
Simple squamous cells 1 layers of flat cells
500
Air travels from the pharynx to the ________ to the _____ and finally to the ______ where oxygen is exchanged with the blood stream.
trachea, bronchi, alveoli
500
How does oxygen enter the blood stream?
diffuse across the respiratory membrane in the alveoli into the capillaries
500
Trace blood from the Inferior Vena Cava to the Pulmonary Trunk (include valves)
IVC -> Right Atrium -> Tricuspid (AV) Valve -> Right Ventricle -> Pulmonary Valve -> Pulmonary Trunk
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