Unit 3 Area Of Study 2 Flashcards

1
Q

Tidal Volume [TV]

A

How much air is inspired (breathed in) or expired (breathed out) in one breath

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2
Q

Respiratory Rate [RR]

A

The number of breaths taken in one minute

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3
Q

Plateau

A

To reach a period or level where no change is observed

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4
Q

Ventilatory Threshold

A

The point where ventilation increases at a non-linear rate

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5
Q

Diffusion

A

The movement of molecules from an area of higher concentration to one of lower concentration

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6
Q

Cardiac Output [Q]

A

The amount of blood pumped out of the heart in one minute

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7
Q

Stroke Volume [SV]

A

The amount of blood ejected by the left ventricle per beat

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8
Q

Heart Rate [HR]

A

The number of times the heart beats in one minute

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9
Q

Systolic Blood Pressure

A

Pressure in the arteries following contraction of ventricles as blood is pumped out of the heart

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10
Q

Ventilation [V]

A

How much air is breathed out in one minute

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11
Q

Diastolic Blood Pressure

A

Pressure in the arteries when the heart relaxes and ventricles fill with blood

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12
Q

Vasoconstriction

A

A decrease in the diameter of a blood vessel, resulting in an decrease in blood flow to the area, supplied by the blood vessel

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13
Q

Vasodilation

A

An increase in the diameter of a blood vessel, resulting in an increase in blood flow to the area supplied by the blood vessel

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14
Q

Arteriovenous Oxygen Difference (a-v02 diff)

A

Difference in oxygen concentration in the arterioles compared with the venules

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15
Q

Motor Unit

A

A motor neuron and the muscle fibres it stimulates

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16
Q

Adenosine Triphosphate [ATP]

A

A chemical compound made up of a adenosine and three phosphate molecules

17
Q

Adenosine Diphosphate [ADP]

A

A chemical compound made up of adenosine and two phosphate molecules

18
Q

Phosphocreatine [PC]

A

A chemical fuel (also called creations phosphate or CP) consisting of a bound phosphate and creative molecule

19
Q

Lactate Inflection Point [LIP]

A

The exercise intensity beyond which lactate production exceeds removal, sometimes referred to as the lactate threshold

20
Q

Venous Return

A

The rate of blood flow back to the heart. Normally limits cardiac output. Increase in Cardiac Output means increase in Venous Return. Uses muscle pump, respiratory pump and venoconstriction.

21
Q

Oxygen Consumption

A

The amount of oxygen taken in and used by the body per minute

22
Q

Blood Pressure

A

The pressure of blood in the circulatory system

23
Q

Temperature

A

During exercise there is an increase in the rate of metabolism required to produce ATP in the muscle.
Heat is the by-product of the process of converting energy (fuel) to mechanical energy (movement).
An increase in the rate of reactions is accompanied by an increase in heat production, which causes body temperature to increase also.

24
Q

Redistribution of blood flow

A

The redirection of blood away from areas where it is not needed during exercise(e.g. Spleen, Kidney)to areas where it is needed (e.g. Working Muscles)

25
Q

Fast Twitch Fibres

A

Fast speed of contraction, strong, anaerobic, fatigue quickly

26
Q

Slow twitch Fibres

A

Slower contraction speed, aerobic, weaker, less fatigue

27
Q

Cori Cycle

A

Converts Lactate back to glucose

28
Q

Oxidative Enzymes

A

Aerobic enzymes, speed up aerobic breakdown of fuels

29
Q

Glycolotic Enzymes

A

Breaks up glycogen to create glucose for transportation into the blood, anaerobic

30
Q

Glycogen/Glucose

A

Glycogen - The group of glucose which is to large to transport through the blood
Glucose - Individual pieces that are broken down from glycogen to transport through the blood

31
Q

Blood Cell make up

A

35% Blood cells (99% RBC/1%WBC)

65% Plasma

32
Q

VO2 Max

A

The maximum rate at which the heart, lungs and muscles can effectively use oxygen during exercise.

33
Q

Cardiovascular Changes

A

Cardiac Output
Blood Pressure
Redistribution Of Blood Flow

34
Q

Acute Muscular Changes

A

Temperature
Lactate
Motor Unit Recruitment

35
Q

Acute Respiratory Responses

A

Ventilation
Diffusion
Ventilatory Threshold