Soc 14: The Muscular System

Question 1

Muscle: Gluteals, Location and Function

Answer 1

Location: In the middle of the body at the back forming the body.
Function: Adduct and extend the leg at the hips pull the legs backwards.

Question 2

Muscle: Hamstrings, Location and Function

Answer 2

Location: At the top of each leg at the back
Function: Flex the legs at the knees

Question 3

Muscle: Gastronemium , Location and Function

Answer 3

Location: At the bottom of each leg at the back. Also known as the calf muscles.
Function: Point the toes (panta-flexion) at the ankle.

Question 4

Muscle: Latissimus Dorsi, Location and Function

Answer 4

Location: At the back of the body, either side of the chest.
Function: Pull your arms down at the shoulders and behind your back (adduct and extend)

Question 5

Muscle: Triceps, Location and Function

Answer 5

Location: At the top of each arm at the back.
Function: Extend the arm and the elbow.

Question 6

Muscle: Deltroids, Location and Function

Answer 6

Location: In the upper part of the body covering the shoulders.
Function: Raise the arms in all directions at the shoulder.

Question 7

Muscle: Biceps, Location and function

Answer 7

Location: At the top of each arm at the front.
Function: Flex the arm at the elbows.

Question 8

Muscle: quadriceps, location and function

Answer 8

Location: At the top of each leg at the front.
Function: Extend the leg at the knee

Question 9

Muscle: Pectoralis major, Location and Function

Answer 9

Location: In the upper part of the chest at the
front.
Function: Adduct the arm at the shoulder

Question 10

Muscle: External obliques, Location and Function

Answer 10

Location: To the side of the abdomen
Function: Pull the chest downward. Flex and rotate the spinal column

Question 11

Antagonistic Pairs

Answer 11

Muscles that work together to create a movement.
When a muscle contracts and pulls a bone, it can produce movement in one direction. However muscles cannot push.
Muscles that are contracting is agonist and the one relaxing is the antagonistic

Question 12

Mucsle: Tibulus anterior,location and function

Answer 12

Location:Runs down the shin
Function:Pull the loes up towards the shin (dorsi-flexion).

Question 13

Mucsle:Hip flexors, location and function

Answer 13

Location:Sit deep in the front of the hip and connect the Leg.
Function:Flex the hip, help the leg and knee up lowards the body.

Question 14

Muscle Fibres

Answer 14

make up voluntary (skeletal) muscle; divided into type I, type lla and type IIx.

Question 15

Type 1

Answer 15

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

Question 16

Type lla

Answer 16

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

Question 17

Type Ilx

Answer 17

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

Question 18

Myoglobin

Answer 18

a red pigment that transports oxygen to the muscles.