PE - Unit 2

Flashcards by tuckp002, updated more than 1 year ago
Created by tuckp002 about 6 years ago


GCSE PE Flashcards on PE - Unit 2, created by tuckp002 on 03/19/2015.

Resource summary

Question Answer
What is anaerobic respiration? High intensity lasting up to 60 seconds. Your body breaks down glucose to create energy without oxygen.
What is the equation for anaerobic respiration Glucose ---> energy + lactic acid
What is lactic acid? A poison that can cause pain and reduce muscle contractions
What is oxygen debt? The amount of oxygen needed to break down the lactic acid in muscles after vigorous exercise
How do you recover from anaerobic respiration? 1) Breathing to reduce oxygen debt 2) Perspiration to cool and remove water 3) Excretion to remove water and waste
What is fatigue? Extreme tiredness caused by lack of muscle glycogen
What is stress? Physical, mental or emotional adjustment to change
What impacts do fatigue have on the body? ~ Muscles cant contract ~ Concentration decreases ~ Movement is less fluent
How do performers respond to stress? Get psyched up (determined) Aggression Tension (tightness in muscles) Anxiety Drop in motivation
What makes up the circulatory system? Blood and blood vessels
What are the functions of the circulatory system? TRANSPORT: oxygen to muscles / CO2 to lungs / waste products to kidneys PROTECTION: White blood cells / Platelets form clots to stop bleeding TEMP CONTROL: maintain and controls
What are the two types of temperature control in the circulatory system? Vasoconstriction ~ maintains heat Vasodilation ~ cools the body
What is the cardiovascular system? The circulatory and respiratory system working in unison. Heart and Blood vessels
What is cardiovascular endurance? The ability of the heart to provide oxygen to the muscles for long periods of exercise.
What are the different training zones? (%) Max heart rate ~ 220-age Anaerobic zone ~ 80-90% of max heart rate Aerobic zone ~ 60-80% of max heart rate
What is recovery rate? The time it takes for the heart rate to return to resting
What is aerobic respiration? Low intensity activity for a long period of time
What is the equation for aerobic respiration? Glucose + oxygen ---> energy + CO2 + water
Where does gaseous exchange take place? Between alveoli and capillaries
What happens in gaseous exchange? High pressures of oxygen diffuse into the blood in capillary. High pressures of CO2 diffuse from capillary into the alveoli. They do this to balance pressure.
What are the two types of injury? Internally caused --> Where the performer is solely responsible. Externally caused --> Environmental factors are responsible such as conditions or opponents.
What are the three causes of internally caused injury? Incorrect technique Overuse Sudden movements
What are the three causes of externally caused injury? Foul Play Impact Equipment / Clothing
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