Muscular System Flashcards

1
Q

What are the 12 voluntary muscles?

A
Deltoid
Pectoralis major
Latissimus dorsi
Biceps
Triceps
External obliques
Gluteals
Hip flexors
Quadriceps
Hamstrings 
Gastronemus 
Tibialis anterior
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where are the gluteals located?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the function of the gluteals?

A

To adduct and extend the leg at the hips, pull the leg backwards.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Where is the hamstring located?

A

At the top of each leg at the back.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the function of the hamstring?

A

To flex the legs at the knees.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where is the gastrocnemius located?

A

At the bottom of each leg at the back. Also known as the calf muscles.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the function of the gastrocnemius?

A

To point the toes (plantar-flexion) at the ankle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where is the latissimus dorsi located?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the function of the latissimus dorsi?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Where are the triceps located?

A

At the top of each arm at the back.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the function of the triceps?

A

Extend the arm at the elbow.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Where are the deltoids located?

A

In the upper part of the body, covering the shoulders.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the function of the deltoids?

A

Raise the arms in all directions at the shoulders.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Where are the biceps located?

A

At the top of each arm at the front.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the function of the biceps?

A

Flex the arm at the elbows.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Where are the quadriceps located?

A

At the top of each leg at the front.

17
Q

What is the function of the quadriceps?

A

Extend the leg at the knee.

18
Q

Where is the pectoralis major located?

A

In the upper part of the chest at the front.

19
Q

What is the function of the pectoralis major?

A

Adduct the arm at the shoulder.

20
Q

Where are the external obliques located?

A

To the side of the abdomen.

21
Q

What is the function of the external obliques?

A

Pull the chest downwards. Flex and rotate the spinal column.

22
Q

Where is the tibialis anterior located?

A

Runs down the shin.

23
Q

What is the function of the tibialis anterior?

A

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

24
Q

Where are the hip flexors located?

A

Sat deep in the front of the hip and connect the leg.

25
Q

What is the function of the hip flexors?

A

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

26
Q

What are voluntary muscles?

A

Voluntary muscles are muscles are under your control. Voluntary muscles can only pull and they do this by contracting.

27
Q

Sporting example of voluntary muscles:

A

You move your biceps and triceps when playing tennis before doing a forehand shot.

28
Q

What are involuntary muscles?

A

Muscles that are not under our control.

29
Q

Why are the involuntary muscles important in sport?

A

It helps distribute blood to areas it is most needed.

30
Q

What is a cardiac muscle?

A

Only found in the wall of the heart it is a very specialised type of involuntary muscle. Cardia muscle is made up of interfaced fibres.

31
Q

What are antagonistic pairs?

A

When two muscles work together to enable movement to happen.
e.g. biceps and triceps, quadriceps and hamstrings, gastrocnemius and tibialis anterior. (Need to know this!!!)

32
Q

When a muscle relaxes, what is the name of the contraction?

A

Antagonist

33
Q

When a muscle contracts, what is the name of the contraction?

A

Agonist

34
Q

What are the two types of twitch fibres?

A

Fast twitch fibres

Slow twitch fibres

35
Q

What is a type 1 slow twitch fibre?

A

Type 1 have a slow contraction velocity, are very resistant to fatigue and are capable of repeated low-level contractions.

36
Q

What are type IIA fast twitch fibres?

A

Type IIA can be fast in anaerobic and aerobic metabolism and produce fast, strong muscle contractions. They are more prone to fatigue that type 1 fibres.