GCSE P.E

Lesson 2

Muscles

MUSCLES AND MOVEMENT

(part 1)

Learning Objectives . . .By the end of this lesson you will

understand . .

• . . . . The role of each muscle in relation to movement.

• Specific sporting examples.

MAIN ACTIONS OF SPECIFIC

MUSCLES

DELTOID

• Top of shoulder• Raises your arm

up

What action is this called?

At what joint?

BICEPS

• Top of upper arm

• Bends your arm at the elbow

What action is this called?

At what joint?

TRICEPS

• Underneath the biceps (lower arm)

• Straightens your arm at the elbow

What action is this called?

At what joint?

TRAPEZIUS

• Triangular shape muscle at the back of shoulders and neck.

• Rotates the shoulders and moves the head.

What action is this called?

At what joint?

LATISSIMUS DORSI

• Large muscle at the side and back.

• Pulls your arm down at the shoulder towards the back.

What action is this called?

At what joint?

ABDOMINALS

• Stomach muscles. • Pulls in your stomach

and helps your bend forward.

What action is this called?

At what joint?

QUADRICEPS

Major leg muscles…allow for flexion at the knee

EXAMPLE FROM SPORT- Sprinting

HAMSTRINGSOpposite to quadriceps…allow for extension of the knee joint

GASTROCNEMIUSCalf muscles

Movement- allows us to stand on toes

Sporting example- long jump

PECTORALSAssist in movement of the chest, and abduction and adduction of the arms

Sporting example- Weight lifting, rowing

GLUTEALSThe gluteus allows us to move the legs in all directions- creates flexion, extension, abduction and adduction

Sporting example- Gymnastics