Soc14 Muscular System

Question 1

What abducts the shoulder?

Answer 1

Deltoid

Question 2

What adducts the arm at the shoulder

Answer 2

Pectoralis major

Question 3

What adducts and extends the arm at the shoulder

Answer 3

Latissimus dorsi

Question 4

What flexes the arm at the elbow

Answer 4

Biceps

Question 5

What extends the arm at the elbow

Answer 5

Tricep

Question 6

What helps flex and rotate the spinal column

Answer 6

External obliques

Question 7

Adducts and extends the leg at the hips

Answer 7

Gluteals

Question 8

What flexes the hip and moves the leg and knee towards the body

Answer 8

Hip flexors

Question 9

What extends the leg at the knee

Answer 9

Quadriceps

Question 10

Flex the leg at the knee

Answer 10

Hamstring

Question 11

point the toes and flex knee

Answer 11

Gastrocnemius

Question 12

Flex toes up to shin

Answer 12

Tibialis anterior

Question 13

Muscle fibres

Answer 13

Voluntary muscles are made up of bundles of individual fibres. Each fibre contains many myofibrils, which of strands that can grab onto each other and pull to make the muscle contract

Question 14

Slow twitch (type I)

Answer 14

These suits endurance activities and can work for long periods of time
They are darker in colour because they contain myoglobin, a red pigment that transports oxygen to the working muscles

Question 15

Fast twitch (II) part one

Answer 15

These are using anaerobic work which can be improved through endurance training. increase the resistance to fatigue

Question 16

Fast twitch (II) part two

Answer 16

These suit speed events such as sprinting or jumping. they are lighter in colour because they don’t use oxygen for energy

Question 17

How can this affect our sport

Answer 17

Everyone has both types of fibres in our muscles but people have different quantities of both, they are determined by our genes. This affects what supports we naturally good at.

Question 18

Fulcrum

Answer 18

The point around which the lever rotates

Question 19

Articulation

Answer 19

The state of having a joint

Question 20

Articulate

Answer 20

Act as a joint

Question 21

Muscle fibres

Answer 21

Make up voluntary muscles divided into type one type II a and type II X

Question 22

Myglobin

Answer 22

A red pigment that transports oxygen to the muscles