The Human Organism

Question 1

In the nervous system, what part contains the brain and the spinal chord?

Answer 1

Central nervous system.

Question 2

If something occurs outside the central nervous system, then it occurs in the blank.

Answer 2

Peripheral nervous system.

Question 3

If you spill coffee on your hand, what part of the nervous system is activated?

Answer 3

Autonomic nervous system.

Question 4

If air traffic control tells you to change your heading 010, what part of the nervous system is activated?

Answer 4

The somatic nervous system.

Question 5

The autonomic nervous system can be split up into the sympathetic and the parasympathetic nervous system. Explain the sympathetic nervous system.

Answer 5

The fight or flight response.

Question 6

The autonomic nervous system can be split up into the sympathetic and the parasympathetic nervous system. Explain the parasympathetic nervous system.

Answer 6

The rest and digest cycle.

Question 7

What do proprioceptors allow humans to do?

Answer 7

Allow us to respond to the space around us.

Question 8

Where are mechanoreceptors located?

Answer 8

Tendons.

Question 9

Blank is a biologically based trait that increases as there is an increased awareness to environmental stimulation.

Answer 9

Sensitivity.

Question 10

When do you use photopic vision and are cones or rods used during this time?

Answer 10

Daytime. Cones.

Question 11

When do you use photopic vision and are cones or rods used during this time?

Answer 11

Daytime. Cones.

Question 12

When do you use scotopic vision and are cones or rods used during this time?

Answer 12

Nighttime. Rods.

Question 13

What happens to your sensory threshold when you become tired?

Answer 13

It increases.

Question 14

What happens to your sensory threshold when you are in a club with loud music?

Answer 14

It increases.

Question 15

What happens to your sensitivity when your sensitivity threshold increases?

Answer 15

It decreases.

Question 16

What is the term for when you have a decrease in behavioural response after repeated exposure?

Answer 16

Habituation.

Question 17

You are in the cockpit and the you drown out the sound of the engine is an example of what?

Answer 17

Habituation

Question 18

What is the name of the artery and veins that surround the heart?

Answer 18

Coronary.

Question 19

What vein and artery go to and from the lungs?

Answer 19

Pulmonary.

Question 20

A pulse is a blank blank that is caused by the pumping of the heart.

Answer 20

Pressure wave.

Question 21

What is a heart stroke?

Answer 21

1 heart beat.

Question 22

The amount if blood pumped by the left ventricle into the aorta, in one contraction, is also known as what?

Answer 22

The stroke volume.

Question 23

What is the average stroke volume in a healthy adult?

Answer 23

70ml.

Question 24

120/80 is the average blood pressure for a healthy adult. What is the top value?

Answer 24

Systolic.

Question 25

120/80 is the average blood pressure for a healthy adult. What is the bottom value?

Answer 25

Diostolic.

Question 26

What is the name of the pressure exerted when the heart contract?

Answer 26

Systolic.

Question 27

What is the name of the pressure when then blood rushes back to fill the hearts ventricles?

Answer 27

Diastolic.

Question 28

How does haemoglobin work?

Answer 28

Contains iron which attracts oxygen.

Question 29

How much oxygen do red blood cells carry?

Answer 29

95%

Question 30

How much oxygen does plasma carry?

Answer 30

5%

Question 31

At sea level, what is the saturation levels of oxygen in blood?

Answer 31

97.5%

Question 32

Why does anaemia mean for oxygen levels and why?

Answer 32

Lack of iron reduces oxygen levels.

Question 33

At 20,000ft , what is the saturation levels of oxygen in blood?

Answer 33

65%

Question 34

What does hypertension mean?

Answer 34

High blood pressure.

Question 35

If your blood pressure is greater than 160/95, then you may have blank.

Answer 35

Hypertension.

Question 36

True or false : a nose bleed is a symptom of hypertension?

Answer 36

True.

Question 37

True or false : vomiting is a symptom of hypertension?

Answer 37

False.

Question 38

True or false : coronary heart disease is a consequence of hypertension?

Answer 38

True.

Question 39

True or false : kidney failure is a consequence of hypertension?

Answer 39

True.

Question 40

What is hypotension?

Answer 40

Low blood pressure.

Question 41

What may you have if your blood pressure is less than 90/60?

Answer 41

Hypotension.

Question 42

True or false : tiredness is a symptom of hypotension.

Answer 42

True.

Question 43

True or false : congestion is a symptom of hypotension.

Answer 43

True.

Question 44

True or false : vertigo is a symptom of hypotension.

Answer 44

False.

Question 45

True or false : fainting is a symptom of hypotension.

Answer 45

True.

Question 46

True or false : hypertension is a cause of coronary heart disease.

Answer 46

True.

Question 47

True or false : smoking is a cause of coronary heart disease.

Answer 47

True.

Question 48

True or false : the flu is a cause of coronary heart disease.

Answer 48

False.

Question 49

Whats it called when the coronary arteries narrow?

Answer 49

Angina.

Question 50

When does angina occur?

Answer 50

During actions that require physical effort.

Question 51

What causes a heart attack?

Answer 51

A blood clot.

Question 52

What causes a cardiac arrest?

Answer 52

An electrical disturbance.

Question 53

What reading must you take at level with your heart?

Answer 53

Blood pressure.

Question 54

What is the average pulse of a healthy sportive adult in rest?

Answer 54

30-50 beats per minute.

Question 55

After a rapid (but NOT explosive) decompression most passengers and the crew are unconscious after 45s. How high approximately is the aircraft?

Answer 55

35000ft