SOC 14: MUSCULAR SYSTEM Flashcards
WHAT IS THE FUNCTION OF THE DELTOID
Raises the arm in all directions at the shoulder
WHERE IS THE DELTOID LOCATED
In the upper part of the body, covering the shoulders
WHAT IS THE FUNCTION OF THE PECTORALS
Adduct the arm at shoulder
WHERE ARE THE PECTORALS LOCATED
In the upper part of the chest at the front
WHAT IS THE FUNCTION OF THE LATIMUSS DORSI
Pull your arms down at the shoulders and behind your back
WHERE IS THE LATIMUSS DORSI LOCATED
At the back of the body on either side of the chest
WHAT IS THE FUNCTION OF THE BICEPS
Flex arm at the elbows
WHERE ARE THE BICEPS LOCATED
At the top of each arm at the front of the body
WHAT IS THE FUNCTION OF THE TRICEPS
Extend the arm at the elbow
WHERE ARE THE TRICEPS LOCATED
At the top of each arm at the back of the body
WHAT ARE THE TWO MAIN TYPES OF MUSCLE FIBRES
Slow twitch and fast twitch
WHAT ARE ANTAGONISTIC PAIRS
they are muscles that work together to create movement
WHAT ARE SOME ANTAGONISTIC PAIRS
- deltoids and pectorals
- triceps and biceps
- quads and hamstrings
HOW DO THE DELTOIDS AND PECTORALS WORK TOGETHER
The deltoid abducts the upper arm at the shoulder whilst the pectorals adduct of the upper arm at the shoulder
HOW DO THE TRICEPS AND BICEPS WORK TOGETHER
The tricep extends at the lower arm at the elbow and the bicep flexes the arm at the elbow
HOW DO THE QUADS AND HAMSTRINGS WORK TOGETHER
the quads extends the leg at the knee whereas the hamstrings flexes the leg at the knee
WHAT ARE THE TYPES OF SLOW TWITCH FIBRES
Type 1 slow twitch
What is type 1 slow twitch fibres
It suits endurance activities which allows you too work for longer periods of time and can transport oxygen to the working muscles because of the Myoglobin
WHAT IS MYOGLOBIN
A red pigment that transports oxyegn to working muscles
WHAT IS THE TYPE OF FAST TWITCH FIBRES
Type 2 fast twitch
WHAT ARE THE TWO THPES OF TYPE 2 FAST TWITCH FIBRES
Type 11a and type 11x
WHAT ARE TYPE 11A TWITCHES
They are used in anaerobic work which can be improved through endurance training to increase resistance to fatigue
WHAT ARE TYPE 11X TWITCHES
They are used in anaerobic work that can generate more power that other muscle fibres but fatigue quickly
WHAT SPORT ARE TYPE 11X TWITCHES USED FOR
Suit speed events such as sprinting or jumping and they don’t use oxygen for energy
