Muscular System

Question 1

Name the 12 voluntary muscles

Answer 1

Deltoid. Gluteals
Pectoralis major. Hip flexors 
Latissimus dorsi. Quadriceps
Biceps. Hamstring 
Triceps. Gastrocnemius 
External obliques. Tibialis anterior

Question 2

What is the location and the function of the gluteals

Answer 2

In the middle of the body at the back, forming the bottom

Adduct and extend the leg at the hips, pull the leg backwards

Question 3

What is the location and the function of the hamstring

Answer 3

At the top of each leg at the back

Flex the legs at the knees

Question 4

What is the location and the function of the gastrocnemius

Answer 4

At the bottom of each leg at the back. Also known as the calf muscle.
Point the toes ( plantar-flexion) at the ankle

Question 5

What is the location and the function of the latissimus dorsi

Answer 5

At the back of the body, either side of the chest.

Pull you arms down at the shoulders and behind your back ( adduct and extend

Question 6

What is the location and the function of the triceps

Answer 6

At the top each a rm at the back

Extend the arm at the elbow

Question 7

What is the location and the function of the deltoids

Answer 7

In the upper part of the body, covering the shoulders

Raise the arms in all directions at the shoulders

Question 8

What is the location and the function of the biceps

Answer 8

At the top of each arm at the front

Flex the arm at the elbow

Question 9

What is the location and the function of the quadriceps

Answer 9

At the top of each leg at the front

Extend the leg at the knee

Question 10

What is the location and the function of the pectorails major

Answer 10

In the upper part of the chest at the front

Adduct the arm at the shoulder

Question 11

What is the location and the function of the external obliques

Answer 11

The side of the abdomen

Pull the chest downwards. Flex and rotate the spinal column

Question 12

What is the location and the function of the tibialis anterior

Answer 12

Runs down the shin

Pull the toes up towards the shin ( dorsi-flexion)

Question 13

What is the location and the function of the hip flexors

Answer 13

Sit deep in the front of the hip and connect the leg

Flex the hip, help the leg and knee up towards the body

Question 14

What are voluntary muscles

Answer 14

Voluntary muscles are under your control
You can chose when to contract and relax them
They can only pull, they do this when contracting

Question 15

What are involuntary muscles

Answer 15

We cannot control your involuntary muscles
They contract and relax via our nervous system
Spin-dal shape fibres

Question 16

How do involuntary muscles help us in sport

Answer 16

My the blood vessels contracting and relaxing it pushes blood around the body allowing oxygen to be pumped round the body

Question 17

What is a cardiac muscle

Answer 17

The fibres send electrical signals to the heart to allow it to beat at the correct pace

Question 18

What are antagonistic pairs

Answer 18

2 muscles working together allowing movement

Question 19

What muscle is the agonist

Answer 19

The one that is working

Getting angry

Question 20

When a muscle relaxes what is the name of the contraction

Answer 20

Antagonist

Question 21

What are the 3 antagonistic pairs that we need to know

Answer 21

Bicep-tricep
Tibias anterior- gastroneiums
Quadricep-hamstring

Question 22

What are slow twitch fibre

Answer 22

Have a slow contraction but a high resistance to fatigue

These are called type 1

Question 23

What is a fast twitch fibre type 11A

Answer 23

Split atp at a fast rate by using both aerobic and anaerobic metabolism and thus producing strong fast contractions
800m race

Question 24

Fast twitch fibre type 1b

Answer 24

Produce atp at a slow rate by anaerobic metabolism and breaks it down very quickly. This results in extremely fast muscle contraction so therefore produce short fast bursts of power and rapid fatigue