The respiratory system

Question 1

What is the function of the nose/ nasal cavity?

Answer 1

Warms, Moistens, And filters air as it is inhaled

Question 2

What is the function of the Pharynx?

Answer 2

Passageway for air, leads to trachea

Question 3

What is also referred to as the throat?

Answer 3

The pharynx

Question 4

What is the function of the larynx?

Answer 4

The Voice box, Where vocal cords are located

Question 5

What is the function of the trachea?

Answer 5

Keeps the wind pipe open, trachea is lined with fine hairs called cilia which filter air before it reaches the lungs

Question 6

What is the function of the bronchi?

Answer 6

Two branches at the end of the trachea each lead to a lung

Question 7

What is the function of the bronchioles?

Answer 7

A network of smaller branches leading from the bronchi into the lung tissue and ultimately to air sacs

Question 8

What is the function of the respiratory system?

Answer 8

Carry out respiration, bring oxygen to each cell in the body and remove carbon dioxide

Question 9

What is the function of Ciliated cells?

Answer 9

Capture foreign particles and sweep them into pharynx to be swallowed, sneezed or coughed.

Question 10

The upper respiratory tract consists of?

Answer 10

Nasal passage, Pharynx, Epiglottis, Glottis, Larynx, And trachea.

Question 11

What is the Glottis?

Answer 11

Opening/slit to the trachea

Question 12

What is another word for the trachea?

Answer 12

Wind pipe

Question 13

The lower respiratory tract consists of?

Answer 13

The bronchi, bronchioles, lungs, alveoli, and diaphragm

Question 14

The lungs are surrounded by thin double layered membranes called?

Answer 14

Plural membrane

Question 15

Describe the Alveoli.

Answer 15

Has thin walls for diffusion, Is surrounded by a network of capillaries, lined with lubricating film that prevents them from collapsing and sticking together.

Question 16

Where does gas exchange occur in the respiratory system?

Answer 16

In the tiny air sacs in the lungs called Alveoli

Question 17

What is respiration?

Answer 17

The process in which oxygen is brought to each cell and carbon dioxide is removed

Question 18

Respiration consists of two separate processes what are they?

Answer 18

External respiration an internal respiration

Question 19

What is the function of external respiration?

Answer 19

Exchange of oxygen and carbon dioxide between air and blood

Question 20

What is the function of internal respiration?

Answer 20

Exchange of oxygen and carbon dioxide between body’s cells and blood

Question 21

There are two processes involved in breathing what are they called?

Answer 21

Inspiration and expiration

Question 22

What is inspiration in breathing?

Answer 22

Moves air from external environment into lungs

Question 23

What is expiration in breathing?

Answer 23

Moves air from the lungs back to external environment

Question 24

What Are the main structures of breathing?

Answer 24

The diaphragm and the rib muscles

Question 25

Describe what happens on an inhalation of breathing.

Answer 25

External rib muscles and diaphragm contract, rib cage expands and moves upward and outward, floor of chest cavity (diaphragm) moves downward, Air pressure in thoracic cavity increases

Question 26

Describe what happens on exhalation in breathing.

Answer 26

Diaphragm (upward) and rib muscles relax, volume of thoracic cavity reduced, volume of lungs decreases.

Question 27

What is a spirograph?

Answer 27

Represents the amount of air that moves in and out of the lungs with each breath

Question 28

What is tidal volume?

Answer 28

Volume of air inhaled and exhaled at rest

Question 29

What is inspiratory reserve volume?

Answer 29

Additional air that can be taken into lungs beyond regular inhalation

Question 30

What is expiratory reserve volume?

Answer 30

Additional air that can be forced out of the lungs beyond regular exhalation

Question 31

What is vital capacity?

Answer 31

Total lung volume of gas that can be moved into her out of the lungs

Question 32

What is residual volume?

Answer 32

Amount of gas remaining in lungs and passageway after exhalation

Question 33

Describe the external respiration.

Answer 33

Diffusion of carbon dioxide from pulmonary capillaries into alveolar sacs and oxygen from alveolar sacs into pulmonary capillaries

Question 34

Blood moving away from the body tissues becomes oxygen what?

Answer 34

Becomes oxygen poor

Question 35

Describe internal respiration.

Answer 35

Diffusion of oxygen from systematic capillaries into tissues and carbon dioxide from tissue fluid into systematic capillaries

Question 36

The binding of oxygen to haemoglobin is affected by what?

Answer 36

Concentration of oxygen, PH, temperature

Question 37

Haemoglobin holds what percentage of carbon dioxide?

Answer 37

23%

Question 38

Plasma holes what percentage of carbon dioxide?

Answer 38

7%

Question 39

Carbonic acid/bicarbonate ion holds what percentage of carbon dioxide?

Answer 39

70%

Question 40

Breathing rate is controlled by…

Answer 40

The respiratory centre of the brain

Question 41

Where is the respiratory centre located in the brain?

Answer 41

Is located in the medulla, a portion of the brain just above the spinal cord

Question 42

How does the respiratory system work with the circulatory system?

Answer 42

Circulate blood and oxygen

Question 43

Inhalation is caused by…

Answer 43

The diaphragm moving down and the ribs moving out

Question 44

How does the diaphragm move during exhalation?

Answer 44

Relaxes and moves upwards

Question 45

Gaseous exchange

Answer 45

Oxygen is gained and carbon dioxide is lost