Quiz questions

Question 1

Which using volume is abbreviated VT

Answer 1

Tidal volume

Question 2

Which is definition of residual volume

Answer 2

Volume remaining after maximal expiration

Question 3

Bicarbonate ions transport the highest percentage if carbon dioxide in blood (True or False)

Answer 3

True

Question 4

Blood in the pulmonary artery is deoxygenated (True or False)

Answer 4

True

Question 5

What are the primary expiratory muscles during rest and normal tidal breathing

Answer 5

None

Question 6

What causes a rightward shift in oxyhaemoglobin disassociation curve

Answer 6

Decrease in blood pH

Question 7

Which of the following isn’t in the upper respiratory system

Answer 7

Bronchioles

Question 8

What is the primary inspiratory muscle

Answer 8

Diaphragm

Question 9

When volume is increased in the lungs, pressure in the lungs also increases (True or False)

Question 10

What detects changes in blood pH

Answer 10

Chemoreceptors

Question 11

Name the nerve bodies in the heart rate conducts the electrical signal from the pacemaker of the heart to the ventricles

Answer 11

Purkinjie fibres

Question 12

Name the pacemaker of the heart

Answer 12

SAN

Question 13

What type of valve prevents the flow of blood from the ventricles back into the atrium

Answer 13

Atrio-venctricular valve

Question 14

What is the middle layer of a blood vessel called

Answer 14

Tunica media

Question 15

Where are erthrocytes

Answer 15

Bone marrow

Question 16

What shape are erthrocytes

Answer 16

Biconcave

Question 17

How is carbon dioxide transported in the blood (3)

Answer 17

• Dissolved in plasma
• As bicarbonate ions
• Carboxyhaemoglobin

Question 18

Order the blood vessels starting with the vessel with the thickest wall to the vessel with the thinnest wall

Answer 18

Artery = 1
Vein = 2
Capillary = 3

Question 19

What do we measure using a sphygmomanometer

Answer 19

Blood pressure

Question 20

Which of the following hormones is produced in the pineal gland

Answer 20

Melatonin

Question 21

When would you see the release of insulin from the pancreas

Answer 21

When you have high blood sugar

Question 22

What gland is located just superior to the kidneys

Answer 22

Adrenal

Question 23

Epinephrine and norepinephrine are responsible for the fight or flight response (True or False)

Answer 23

True

Question 24

The cluster of cells in the pancreas that produce hormones are called the

Answer 24

Islets of langerhans

Question 25

Steroid hormones require a receptor on the cell membrane to enter the cells cytoplasm and nucleus (True or False)

Answer 25

False

Question 26

Calcium level in the blood in the blood is regulated by the

Answer 26

A and B

Question 27

Within the sacromere, which protein binds to Ca2+ and thereby helps initiate contraction

Answer 27

Troponin

Question 28

Which protein blocks the myosin-binding site, preventing contraction from happening at rest

Answer 28

Tropomyosin

Question 29

The process of muscle contraction primarily involves which ion

Answer 29

Ca2+

Question 30

Why is it necessary to have an action potential within the muscle for contraction

Answer 30

The sarcoplasmic reticulum will only release calcium if it has been electrically stimulated

Question 31

Which is the correct order of events in a contraction

Answer 31

T-tubule electrical signal, Ca2+ released, Ca2+ binding to troponin, cross-bridging

Question 32

Type ___?___ fibres are typically engaged during short, higher-intensity exercise that involves some degree of endurance

Answer 32

2a

Question 33

Increasing the firing frequency of a muscle fibre increases the amount of force it can generate

Answer 33

True

Question 34

Myofibrils are located within:

Answer 34

The muscle fibres

Question 35

Which ion gate (channel) is actively engaged in resetting the nerve's resting membrane potential?

Answer 35

Na+ and K+

Question 36

During an action potential, the nerve membrane potential changes from -70mV to +35mV. This is an example of

Answer 36

Depolarisation

Question 37

The job of an afferent neuron is to

Answer 37

Send impulses from the body to the brain

Question 38

The fatty insulation that often surrounds an axon and speeds up the signal is called

Answer 38

Myelin sheath

Question 39

Resting membrane potential in neuron is

Answer 39

-70mV

Question 40

In a resting neuron, the intracellular environment is more negative compared to the extracellular environment (True or False)

Answer 40

True

Question 41

The action potential "all or none law" states that the stimulus must be of a certain threshold for the action potential to be passed along the nerve (True or False)

Answer 41

True

Question 42

Where is the RCC located

Answer 42

Brain

Question 43

The job of the afferent neuron is to

Answer 43

Send impulses from the body to the brain

Question 44

Which type of blood vesel has thick walls that contain a lot of smooth muscle and elastic tissue

Answer 44

Artery

Question 45

Arteries contain relatively thin walls with a large lumen diameter and are very distensible (True or False)

Answer 45

False

Question 45

Increasing the number of fibres recruited is the only way to increase the amount of force generated (True or False)

Answer 45

False

Question 46

Diastolic blood pressure (mmHg) represents the force the blood exerts against the arterial wall during ventricular contraction (True or False)

Answer 46

False

Question 46

Type II fibres have...

Answer 46

More fibres per motor unit

Question 47

Detecting a low PCO2 in the blood stimulates an increase in breathing rate/depth (True or False)

Answer 47

False

Question 48

Which receptors would tell the brain that the elbow was moving position

Answer 48

Proprioreceptors

Question 49

Vasoconstriction occurs in response to (4)

Answer 49

- Decreased H+ - Cold - Decrease CO2 - Increase in O2

Question 50

The blood in the pulmonary artery is deoxygenated (True or False)

Answer 50

True

Question 51

What is the name of the equation used to calculate VO2 from expired gas samples

Answer 51

Haldane

Question 52

Which of these is not an endocrine gland

Answer 52

Salivary gland