Revision questions - respiratory system Flashcards
- What is respiration? (slide 4)
- All processes in the body concerned with supply and utilisation of oxygen
- All the processes in the body concerned with the production and removal of carbon dioxide
- A and B
- None of the above
c. A and B
- Where is the electron transport chain located? (slide 5)
- Mitochondria
- Sarcoplasmic reticulum
- Nucleus
- T tubules
a. Mitochondria
- Oxidative phosphorylation ultimately produces: (slide 5)
- ATP + CO2
- ATP + NAD+
- CO2 + H20
- ATP + H2O + NAD+
d. ATP + H2O + NAD+
- _i_n produced in the cycle. (slide 6)
- Carbon monoxide, Krebs
- Carbon dioxide, Acetyl-A
- Carboxyllic acid, Krebs
- Carbon dioxide, Krebs
d. Carbon dioxide, Krebs
- External respiration is: (slide 12)
- Air moving in and out of the lungs from the outside
- The transport of air from alveoli to pulmonary capillaries
- Breathing while outside
- The transport of oxygen and carbon dioxide in the blood vessels from pulmonary capillaries to the heart
a. Air moving in and out of the lungs from the outside
- Diffusion is:
- Active movement of a substance from an area of low concentration to high concentration
- Passive movement of a substance from an area of high concentration to low concentration
- Active movement of a substance through a selectively permeable membrane
- Passive movement of a substance through a selectively permeable membrane
b. Passive movement of a substance from an area of high concentration to low concentration
- Which structures are shared between the respiratory and gastrointestinal system? (slide 13)
- Nasal cavity + trachea
- Oesophagus + larynx
- Trachea + oesophagus
- Pharynx and Mouth
Pharynx and Mouth
- What is the stage of respiration between external and internal respiration? (slide 10)
- Osmosis
- Blood gas transport
- Tissue gas exchange
- Pulmonary ventilation
b. Blood gas transport
- The respiratory system includes the following organs (slide 13):
- Nose, trachea, oesophagus, lungs,
- Nose, mouth, airways, lungs
- Mouth, lungs, diaphragm
- Nose, mouth, lungs, diaphragm
b. Nose, mouth, airways, lungs
- In order from outside to inside:
- Trachea, Larynx, Bronchus, Bronchiole, Alevoli
- Larynx, Trachea, Bronchus, Bronchiole, Alveoli
- Larynx, Trachea, Bronchiole, Alveloli, Bronchus
- Alveoli, Bronchiole, Bronchus, Trachea, Larynx
b. Larynx, Trachea, Bronchus, Bronchiole, Alveoli
- The 4 tissue types in the human body are: (slide 14)
- fat, muscle, bone
- epithelial, cardiac, smooth, peripheral
- cardiovascular, muscular, digestive, nervous
- epithelial, connective, nervous, muscle
d. epithelial, connective, nervous, muscle
- The conducting zone: (slide 18)
- Get O2 into the blood
- Gets O2 into the blood and CO2 out of the blood
- Gets air into the lungs
- Is the area in the myelin sheath where sodium and potassium ions cross the nerve cell membrane
c. Gets air into the lungs
- How many alveoli does human lung tissue normally contain: (slide 22)
- 8 x 102 alveoli
- 8 x 103 alveoli
- 8 x 106 alveoli
- 8 x 1012 alveoli
c. 8 x 106 alveoli
- Alveolar and capillary walls are approximately how thick?
- 0.5mm
- 0.5µm
- 0.5cm
- 0.5m
b. 0.5µm
- What is the name of the muscle at the base of the lungs that aids inspiration? (slide 25)
- Rectus abdominus
- Transverse abdominis
- Diaphragm
- External intercostals (these are the muscles in the rib cage that aid inspiration)
c. Diaphragm
- From inside to outside which is the correct order? (slidd 25)
- Visceral pleura, intrapleural fluid, parietal pleura
- Intrapleural fluid, visceral pleura, parietal pleura
- Parietal pleura, intrapleural fluid, visceral pleura
a. Visceral pleura, intrapleural fluid, parietal pleura
- Whose law describes how air moves into the lungs? (slide 28)
- Boyle’s Law?
- Hooke’s Law?
- Charles’ Law?
- Avogadro’s Law?
a. Boyle’s Law?
- When the diaphragm contracts: (slide 27)
- The muscle lowers and air is expelled from the lungs
- The muscle rises and air moves into the lungs
- The muscle lowers and air moves into the lungs
- The muscle rises and air moves out of the lungs
c. The muscle lowers and air moves into the lungs
- TV (Tidal volume) is: (slide 35)
- The total amount of air that can be inspired/expired
- The amount of air moved in (or out) of the airways in a single breath
- The amount of blood pumped in a single heart beat
- The air remaining in the lungs after a full exhalation
b. The amount of air moved in (or out) of the airways in a single breath
- IRV (Inspiratory reserve volume) is: (slide 35)
- TLC – TV – FRC
- Maximal inspiration at end of tidal volume
- Inspiratory capacity – TV
- All of the above
d. All of the above
- ERV (Expiratory reserve volume) is: (slidd 35)
- Maximum expiration at end of tidal expiration
- Air remaining in lungs at end of maximal expiration
- TLC – IRV – RV
- FRC + RV
a. Maximum expiration at end of tidal expiration
- VC = (slide 35)
- TV + IRV + ERV
- IRV + ERV
- FRC + TV
- TLC + RV
a. TV + IRV + ERV
- RV is: (slide 35)
- The amount of air we cannot breath out however much we try
- Volume in lungs after maximum expiration
- FRC – ERV
- All of the above
d. All of the above
- What is the ratio between O2 consumed and CO2 produced known as?
- Respiratory exchange ratio
- Peak flow ratio
- Forced expiratory ratio
- Ventilation ratio
a. Respiratory exchange ratio
- What is minute volume? (slide 38)
- The smallest volume of air we can breathe in
- The amount of oxygen inspired in one minute
- The total amount of air taken into the lungs in one minute (or expired)
- The smallest volume of sound we can hear
c. The total amount of air taken into the lungs in one minute (or expired)
- What is minute volume determined by? (slide 38)
- Breathing frequency
- Tidal volume
- Breathing frequency and tidal volume
- Total Lung Capacity and partial pressure of inspired O2
c. Breathing frequency and tidal volume
- Tidal volume is approximately: (slide 39)
- 50ml
- 500ml
- 5000ml
- 50000ml
b. 500ml
- The name of the air that fills the nose, mouth, trachea, and other non diffusible conducting portions of the respiratory tract: (slide 18)
- Dead space
- Live space
- Conducting zone
- Non conducting space
c. Conducting zone
- Alveolar ventilation is:
- The amount of air that participates in gas exchange
- Written as VA
- Approximately 4.2 L·min-1
- All of the above
d. All of the above
- At rest VE = 5 L·min-1, f = 12 min-1 and VD = 0.15L, VA = (slide 37)
- 5 – 12*0.15 = 3.2 L·min-1
- 5 + 12*0.15 = 6.8 L·min-1
- 5 * 12 * 0.15 = 9 L
- 0.15*5 + 12 = 12.75 L
a. 5 – 12*0.15 = 3.2 L·min-1
- During heavy exercise: (slide 37)
- VE increases
- F increases
- VD increases
- All of the above
d. All of the above
- During maximal exercise minute volume can increase to: (slide 39)
- 8 L·min-1
- 80 L·min-1
- 180 L·min-1
- 300 L·min-1
c. 180 L·min-1
- Tidal volume at rest and maximum aerobic exercise are: (slide 38)
- 0.3 and 3 L·min-1
- 3 and 0.5 L
- 0.5 and 3 L
- 5 and 15 L·min-1
c. 0.5 and 3 L
- Oxygenated blood is ejected from the heart via the: (slide 41)
- Right atrium
- Left atrium
- Left ventricle
- Right Ventricle
c. Left ventricle
- Oxygen in the lungs moves into the blood stream via: (slide 42)
- Diffusion into the pulmonary capillaries
- Osmosis into the pulmonary veins
- Active transport into pulmonary capillaries
- Active transport into epithelial tissue
a. Diffusion into the pulmonary capillaries
- CO2 diffuses into the blood in the: (slide 44)
- systemic capillaries
- capillary bed
- capillary buds
- systemic veins
a. systemic capillaries
- The majority of oxygen is transported around the body: (slide 46)
- Dissolved in blood plasma
- Dissolved in water
- Attached to haemoglobin
- Attached to carboxyhaemoglobin
c. Attached to haemoglobin
- A haemoglobin saturation/dissociation curve shows: (slide 47)
- The percentage saturation of Hb at different partial pressures of oxygen
- The volume of oxygen attached to haemoglobin at different altitudes
- The percentage of formed elements in blood
- The percentage of red blood cells in the blood
a. The percentage saturation of Hb at different partial pressures of oxygen
- CO2 is carried in the blood: (slide 51)
- Dissolved in plasma
- Bound to various proteins
- As carbonic acid
- All of the above
d. All of the above
- The percentage of nitrogen in inspired and expired air is:
- 21 and 21
- 21 and 78
- 78 and 21
- 78 and 78
d. 78 and 78
- The energy rich compound generated as a final product during respiration is:
- NADH
- FADH
- ATP
- ADP
c. ATP
- Lowering the diaphragm results in:
- Inspiration
- Expiration
- It is not related to either
- Digestion
a. Inspiration
- Which of the following are the states of respiration in the correct order?
- gaseous transport, breathing, tissue respiration and cellular respiration
- breathing, gaseous transport, tissue respiration and cellular respiration
- breathing, gaseous transport, cellular respiration and tissue respiration
- breathing, tissue respiration, cellular respiration and gaseous transport
b. breathing, gaseous transport, tissue respiration and cellular respiration
- The instrument used to measure the volume of respired gases is:
- Respiroscope
- Spirometer
- Barometer
- Thermometer
b. Spirometer
- Maximum CO2 concentration will be in the:
- Inspired air
- Expired air
- Dead space air
- All will be the same (would be true for Nitrogen)
b. Expired air