Muscular System

Question 1

Shoulders

Answer 1

Deltoids

Question 2

Front of arms

Answer 2

Biceps

Question 3

Chest

Answer 3

Pectorals

Question 4

Stomach

Answer 4

Abdominals

Question 5

Front top of leg

Answer 5

Quadriceps

Question 6

Top of back/neck

Answer 6

Trapezius

Question 7

Lower outer back

Answer 7

Latissimus dorsi

Question 8

Top back leg

Answer 8

Hamstrings

Question 9

Bottom back leg

Answer 9

Gastrocnemius

Question 10

Bottom

Answer 10

Gluteals

Question 11

What are the types of muscles

Answer 11

Voluntary, in voluntary, cardiac, specific

Question 12

Voluntary muscles

Answer 12

Controlled by ourselves – the brain tells them to move. They are attached to bones. They allow movement to occur through pulling the bones, around 600 on the body, under the microscope they look striped, 40% of bodyweight is voluntary muscle, examples include bicep, the quadriceps and the hamstrings

Question 13

In voluntary (smooth) muscle

Answer 13

Days work automatically without any conscious control from us. They are found in the bowl, the goat, the blood vessel and in the internal organs. Under a microscope they look smooth

Question 14

Cardiac muscle

Answer 14

Specialise type of in voluntary muscle. The heart contracts regularly on automatically. Each contraction is a heartbeat. Rate can be influenced but not controlled. They look stripes under a microscope acts like a smooth-muscle

Question 15

How voluntary muscles work

Answer 15

Voluntary muscles usually work across the joint. They’re attached to bones to tendons. When muscles move only one bone usually moves. The other one is stationary

Question 16

Origin and insertion

Answer 16

Origin – where the muscle joins the stationery bone in movement
Insertion – where the muscle joins the moving bone into movement
Example bicep contracting origin is the shoulder insertion is the elbow

Question 17

Antagonistic muscle action

Answer 17

Muscles can only pull not push they need to working antagonistic pairs to allow movement

Question 18

What is the prime mover or organist

Answer 18

The working (pulling) muscle

Question 19

What is the antagonist

Answer 19

The relaxing muscle

Question 20

What is the fixator

Answer 20

This is the muscle that works with others to stabilise the origin of the prime mover

Question 21

Muscle tone

Answer 21

Muscle tone is the state of readiness of the voluntary muscle to do the job

Question 22

Benefits of good posture

Answer 22

Helps your heart, breathing and digestive system work. Prevents strain injury and sporting other activities. Makes you less tired.

Question 23

Problems of poor posture

Answer 23

Strain on your bones, ligaments and tendons can lead to injury. Round shoulders make it harder to breeze. Muscles have to work harder. You don’t look as good as you could. Perfect digestion. Can take years to put right

Question 24

Fast twitch muscle fibre

Answer 24

Provide short explosive burst of energy. Best used in speed events such as sprinting throwing and jumping

Question 25

Slow twitch muscle fibre

Answer 25

Provide slower and longer lasting burst of energy. Best suited to endurance events such as distance running cycling and swimming

Question 26

What does laterally mean

Answer 26

It means sideways