Structures
Structures Part 2
How to Breathe
How to Breathe part 2
Breathing Regulation
100
Contains the lungs, heart; Protected by the Thoracic Cage (ribs, diaphragm, rib muscles)
What is Thoracic Cavity?
100
The progression of 'branching' in the lung starting from widest to most narrow
What is Bronchi, Bronchiole, Alveoli
100
When you are in cold conditions it is easier for your lungs if you breathe through your:
What is nose?
100
The partial pressure in the lungs is approximately 13.3kPa so blood leaving the lungs is saturated with
What is oxygen?
100
specialized nerve receptor that is sensitive to specific chemicals
What is chemoreceptor?
200
Epithelia warms air in this passage and prepares air for lower respiratory system
What is nasal passage?
200
very thin blood vessels- one cell thick
What is a capillary?
200
Another term used to describe cellular respiration and gas exchange between cells and blood
What is internal respiration?
200
CO2 + H20 ----> H2CO3 (aq) is a process which happens in the blood. The resulting product is called
What is carbonic acid?
200

this chemoreceptor is more important because our body is VERY sensitive to too much CO2 build up

What is medulla oblongata?

300
tube only reserved for gas and connected to the trachea; also know as the voice box
What is larynx?
300
elevates or depresses ribs during breathing cycles
What is intercostal (rib) muscles)?
300
Gas exchange in the lungs occurs at this membrane.
What is Alveoli-Capillary membrane?
300
an enzyme that speeds up this chemical reaction 250 times faster! CO2 + H20 --->H2CO3 (aq)
What is carbonic anhydrase?
300
Carotid and Aortic bodies are found in the carotid and aortic arteries and their main function is to
What is detect low oxygen levels?
400
mucus and debris is swept by this structure from the windpipe back into the pharynx
What is cilia?
400

A muscle that contracts or relaxes to change the shape of the thoracic cavity

What is diaphram?

400
Bond between oxygen and hemoglobin
What is oxyhemoglobin
400
Since hemoglobin stabilizes H+(aq) we say that hemoglobin acts a
What is BUFFER
400
these two circumstances will initiate increased rib muscles and diaphragm movements and the Result= increased breathing rate
What is high CO2 and low O2?
500
Elastic cartilage tissue with mucous membrane; Attached to the entrance of the larynx
What is epiglottis?
500
The muscles associated with the lungs will do this when you need to inhale
What is coNtract?
500

Three things that affect Oxygen Transport

Temperature, pH, Oxygen concentrations

500
oxygen attaches to red blood cells easily because of blank group which contains a blank ion.
What is heme group and iron ion?
500
is the brainstem and it controls our automatic breathing movements... (you have say it properly)
What is the medulla oblongata?
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