WorksheetsLAN YR12 BTEC RESPIRATORY SYSTEM
Total questions: 20
Worksheet time: 10mins
What is the name of the receptors that detect change in blood pH?
Baroreceptors
Chemoreceptors
pH receptors
chemicalreceptors
What part of the brain receives signals regarding changing breathing rate?
Cardiac control centre
Respiratory control centre
Breathing control centre
Hypothalamus
Name the missing part in the travel of air into the lungs:
pharynx, larynx, trachea, bronchi, _________ alveoli
Epiglottis
Diaphragm
Thoracic Cavity
Bronchioles
Select the 3 characteristics of the membranes that increase efficiency of gaseous exchange.
one cell thick
large surface area
layer of moisture
lots of holes
Name the nerve that stimulates an increase in the contraction rate and force of respiratory muscles
Breathing nerve
Phrenic Nerve
Siatic Nerve
Trochlear nerve
Which respiratory muscles work during inspiration?
Diaphragm
Internal intercostals
External Intercostals
Which respiratory muscles work during expiration?
Diaphragm
Internal intercostals
External intercostals
Pressure moves from high to low
False
True
Microscopic sacs where gas exchange takes place; are called:
alveoli
bronchi
villi
When you exhale, the diaphragm
moves upwards
moves downwards
flattens
none of the above
What are found in the Medulla oblongata?
Chemoreceptors
Phrenic nerve
Alveoli
Oxygen
Breathing rate increases from signals sent down what nerve?
Vagus nerve
Accelerator nerve
Phrenic nerve
All nerves
What do chemoreceptors detect in the blood?
Mineral levels
Vitamin levels
Carbon dioxide levels
Red blood cell levels
How does air move?
From areas of low pressure to areas of high pressure
From areas where pressure is the same
From areas of high pressure to areas of low pressure
From warm to cold areas
