GCSE PE Flashcards
What is a balanced diet?
Eating the right amount for energy expenditure, the right amount for calories, according to how much you are exercising and different food types.
Explain hydration
Having enough water to enable normal functioning of the body.
Where are simple carbohydrates found?
In foods such as sugar, milk and fruit.
Where are complex carbohydrates found?
In foods such bread, pasta, potatoes, rice, pulses.
What is carbo-loading?
Eating foods that are high in starch to increase carbohydrate reserves in muscles.
What are minerals?
Inorganic substances which assist the body with many of its functions- such as bone formation (calcium)
What is the role of fats?
Fats are a source of energy that also help to insulate the body and keep the body temperature at the right level.
What is dehydration?
Excessive loss of body water interrupting the function of the body.
What does viscosity mean?
The thickening of the blood.
List the different food groups
Proteins, fats, carbohydrate, fibre, minerals, vitamins and water
How is unused energy stored in the body?
In the form of fat.
What is a somatotype?
A method of classifying body type into the three categories of ectomorph, mesomorph and endomorph.
Explain the characteristics of a ectomorph
Narrow shoulders, narrow hips. Tend to be tall and thin, lightly muscled. Suited for endurance type events.
Explain the characteristics of a mesomorph
Muscular appearance with wide shoulders and narrow hips. Mesomorphs tend to have a muscular, athletic build with little body fat and gain muscle relatively easily. Suited to sports requiring speed, strength and power.
Explain the characteristics of a endomorph
Pear-shaped body with wide hips and narrow shoulders. Rounded appearance, has trouble loosing weight but can gain muscle. Endomorphs are suited to sports which do not require high levels of speed or mobility
Define obesity
A term for people who are overweight, caused by an imbalance of calories consumed to energy expended. A BMI of over 30.
What are the mental and social factors of being obese?
Increase chance of depression, loss of confidence, inability to socialise, inability to leave home (extreme)
What are the physical and fitness factors of being obese?
Limit stamina, flexibility, agility and speed/power. Increases chances of cancer, increase chances of Heart attacks, Increased chance of diabetes, increase chance of high cholesterol.
<p><strong>What are the Functions of the Skeleton?</strong></p>
<p><strong>Support</strong> - Keep us upright and hold the rest of the body in place</p>
<p><strong>Protection </strong>- Protect the bodies organs from external forces e.g. cranium protects the brain</p>
<p><strong>Movement </strong>- provides anchor point of muscles to pull against</p>
<p><strong>Structure shape and points for attachment </strong>- skeleton gives us our general shape such as height and build. Also provides anchor points for muscle attachement</p>
<p><strong>Mineral Storage </strong>- Bones store several mineral including calcium and phosphorous</p>
<p><strong>Blood Cell Production</strong> - inner marrow of the long bones and ribs produce red and white blood cells</p>
<p>What is the definition of Support?</p>
<p>Bones keep us upright and hold muscles and organs in place</p>
<p>What does Protection mean?</p>
<p>Some bones surrond and protect vital organs from damage</p>
<p>What are long bones?</p>
<p>The bones of the legs and arms. Long bones support the weight of the body and help with gross movements</p>
<p>What are articulating bones? Provide an example.</p>
<p>Where two or more bones meet to allow movement at a joint. EG- humerus and radius/ulna.</p>
<p>Explain the term flexion</p>
<p>Decreasing the angle of the bones at a joint.</p>
Explain the term extension
Increasing the angle of bones at a joint.
Explain the term abduction
Movement away from the midline of the body
Explain the term adduction
Movement towards the midline of the body.
Explain the movement plantar flexion
Pointing the toes at the ankle.
What are ligaments?
Bands of fibres that are attached to the bones and link the joints together.
What are tendons?
Very strong cords that join the muscles to the bone
What is an eccentric contraction?
Lengthening of the muscles
What is a concentric contraction
Shortening of the muscles
Explain the term agonist
Muscle or group of muscles responsible for movement.
Explain the term antagonist
Muscles that act to produce the opposite movement to the agonist. They work in antagonistic pairs.
Which class of lever is the Diagram?
1st Class
Fulcrum is in the middle
During Plantarflexion of the ankle, what class of lever is being used?
2nd Class
Resistance is in the middle
How do you work out mechanical advantage?
Effort arm / resistance arm
What is the benefit of a lever system of having a short effort arm?
Gives rapid movements over a large range of movement
What is the benefit of a lever system of having a short resistance arm?
Able to move a heavy weight
Complete this:
1 F T/Neck
2 _ G
_ E _
1 F TRICEP/NECK
2 L GASTROCNEIMUS
3 E BICEP/ANY OTHER MUSCLE
What do you understand by the term 'Antagonistic muscle action'
As one muscle contracts the second relaxes
Define Isotonic muscle contraction
Muscle action where the muscle changes length - causing movement
Define Isometric muscle contraction
Muscle action where the muscle stays the same length - used in balances e.g. the plank/headstand
Define concentric muscle contraction
Isotonic muscle contraction where the muscle shortens
Define eccentric muscle contraction
Isotonic contraction where the muscle lengthens - used to control downward movements
Which plane is this?
Sagittal
What does the Transverse plane divide the body into?
Top and Bottom
Which plane is this?
Frontal
What action does the Deltoid cause at the shoulder?
Flexion
If the Shoulder is flexing what is the antagoinistic muscle?
Latissimus Dorsi
What movements are occuring at the elbow and knee, and which muscles cause them?
Elbow - Flexion - Biceps
Elbow - Extension - Triceps
Knee - Extension - Quadriceps
Knee - Flexion - Hamstrings
What is the definition of flexion?
Decreasing the angle of the joint
Which plane and axis does abduction at the shoulder take place in?
Frontal Plane
&
Sagittal Axis
What movement does the Latissimus Dorsi cause?
Adduction of the Shoulder
Which Muscle causes Dorsiflexion of the ankle?
Anterior Tibialis
Which muscle causes rotation of the shoulder?
Rotator cuff
Name the main agoinst and antagoinst at the elbow joint as movement occurs from A to B
Agonist - Tricep
Antagoinst - Bicep
What is the antagoinst pair about the hip?
Hip Flexors - cause hip flexion
Gluteals - Cause hip extension
Which class of lever is the Diagram?
1st Class
Fulcrum is in the middle
During Plantarflexion of the ankle, what class of lever is being used?
2nd Class
Resistance is in the middle
How do you work out mechanical advantage?
Effort arm / resistance arm
What is the benefit of a lever system of having a short effort arm?
Gives rapid movements over a large range of movement
What is the benefit of a lever system of having a short resistance arm?
Able to move a heavy weight
Complete this:
1 F T/Neck
2 _ G
_ E _
1 F TRICEP/NECK
2 L GASTROCNEIMUS
3 E BICEP/ANY OTHER MUSCLE
What do you understand by the term 'Antagonistic muscle action'
As one muscle contracts the second relaxes
Define Isotonic muscle contraction
Muscle action where the muscle changes length - causing movement
Define Isometric muscle contraction
Muscle action where the muscle stays the same length - used in balances e.g. the plank/headstand
Define concentric muscle contraction
Isotonic muscle contraction where the muscle shortens
Define eccentric muscle contraction
Isotonic contraction where the muscle lengthens - used to control downward movements
Which plane is this?
Sagittal
What does the Transverse plane divide the body into?
Top and Bottom
Which plane is this?
Frontal