SOC 14- The Muscular System

Question 1

Location of deltoid

Answer 1

In the upper part of the body, covering the shoulders

Question 2

Function of deltoid

Answer 2

Raise the arms in all directions at the shoulders

Question 3

Example of a sport where a deltoid is used

Answer 3

Swimming

Question 4

Location of pectoralis major

Answer 4

In the upper part of the chest at the front

Question 5

Function of the pectorialis major

Answer 5

Adduct the arm at the shoulder

Question 6

Example of a sport where the Pectoralis major is used

Answer 6

Boxing

Question 7

Location of Latissimus dorsi

Answer 7

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

Question 8

Example of a sport where the latissimus dorsi is used

Answer 8

Rowing

Question 9

Location of the biceps

Answer 9

At the top of each arm at the front

Question 10

Function of the biceps

Answer 10

Flex the arm at the elbow

Question 11

Example of a sport where the biceps are used

Answer 11

Sprinting,clean and jerk

Question 12

Function of the latissimus dorsi

Answer 12

Pull your arms down at the shoulders and behind your back

Question 13

Function of triceps

Answer 13

Extend the arm at the elbow

Question 14

Example of a sport where the triceps are used

Answer 14

Javelin

Question 15

Location of external obliques

Answer 15

To the side of the abdomen

Question 16

Function of the external obliques

Answer 16

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

Question 17

Example of a sport when the external obliques are used

Answer 17

A forward flip in gymnastics

Question 18

Location of the triceps

Answer 18

At the top of each arm at the back

Question 19

Location of gluteals

Answer 19

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

Question 20

Function of the gluteals

Answer 20

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

Question 21

Location of the hip flexors

Answer 21

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

Question 22

Function of the hip flexors

Answer 22

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

Question 23

Location of the quadriceps

Answer 23

At the top of each leg at the front

Question 24

Function of the quadriceps

Answer 24

Extend the leg at the knee

Question 25

Location of the hamstrings

Answer 25

At the top of each leg at the back

Question 26

Function of the hamstring

Answer 26

Flex the leg at the knees

Question 27

Location of the gastrocnemius

Answer 27

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

Question 28

Function of the gastrocnemius

Answer 28

Point the toes ( planta flexion ) at the ankle

Question 29

Location of the tibialis anterior

Answer 29

Runs down the shin.

Question 30

Function of the tibialis anterior

Answer 30

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

Question 31

Voluntary muscles

Answer 31

They are under your control, you can choose when to contract or relax them.

Question 32

Involuntary muscles

Answer 32

They are not under our control. They contract and relax automatically controlled by the involuntary nervous system.

Question 33

Cardiac muscle

Answer 33

A specialised type of tissue that only exists in the heart

Question 34

Muscle Fibres

Answer 34

Make up voluntary (skeletal) muscle; divided into type I , type IIa , type IIx

Question 35

Type I

Answer 35

slow twitch muscles fibres;suited to low intensity work e.g. marathon running , as they can be used for a long period without fatiguing

Question 36

Type IIa

Answer 36

Fast twitch muscle fibres used in anaerobic work ; can be improved through endurance training to increase their resistance to fatigue.

Question 37

Type IIx

Answer 37

Fast twitch muscle fibres used in anaerobic work and can generate much greater force than other fibre types , but fatigue quickly.

Question 38

Myoglobin

Answer 38

A red pigment that transports oxygen to the muscles