Major Muscles
Hands and Arms
Legs and Feet
WRBCS204A
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Position
Refers to where a muscle may be
found in the body.
Origin
Refers to where the muscle starts
from and cannot move.
Insertion
Refers to where a muscle ends or
finishes. It cannot be moveable.
Action
Refers to what a muscle does or the
movement it performs
Major Muscles of the
Hand and Arms
Muscle
Flexor
Carpi
Radialis
Position
Anterior
Forearm
Origin
Humerus
Insertion
Front of the
carpals
Action
Bends and
flexes the
wrist and
forearm
Major Muscles of the
Hand and Arms
Muscle
Brachioradialis
Position
Posterior forearm
Origin
Lateral side of the
Humerus
Insertion
The wrist on the
radial side
Action
Flexes the elbow
Major Muscles of the
Hand and Arms
Muscle
Extensor
Digitorum
Position
Posterior
Hand
Origin
Lateral side
of the
Humerus
Insertion
Into the
Metacarpals
Action
Extends the
wrist and
forearm
Major Muscles of the
Hand and Arms
Muscle
Biceps
Position
Upper Arm
Origin
Scapula of
shoulder
girdle
Insertion
Proximal
radius
Action
Flexes the
elbow and
raises the
forearm
Major Muscles of the
Hand and Arms
Muscle
Flexor Carpi
Radialis
Brachioradialis
Extensor
Digitorum
Biceps
Position
Anterior Forearm
Posterior
Forearm
Posterior Hand
Upper Arm
Origin
Humerus
Lateral side of
the Humerus
Lateral side of
the Humerus
Scapula of
shoulder girdle
Insertion
Front of the
carpals
The wrist on the
radial side
Into the
Metacarpals
Proximal radius
Action
Bends and
flexes the wrist
and forearm
Flexes the
elbow
Extends the
wrist and
forearm
Flexes the
elbow and
raises the
forearm
Major Muscles of the
Legs and Feet
Muscle
Tibialis Anterior
Position
Front of the
Lower Leg
Origin
Below the knee
joint on the two
bones of the
lower leg (Tibia &
Fibula)
Insertion
Tarsal and
Metatarsal bones
inside the instep
Action
Raises the foot
towards the leg &
inverts the foot
Major Muscles of the
Legs and Feet
Muscle
Gastrocnemius
Position
Forms the calf
of the leg
Origin
At the back of
the thigh bone
(Femur)
Insertion
Achilles Tendon
Action
Raises the body
as in walking,
running and
dancing
Major Muscles of the
Legs and Feet
Muscle
Soleus
Position
Lies under the
Gastrocnemius
Origin
At the back of
the thigh bone
(Femur)
Insertion
Achilles Tendon
Action
Raises the body
as in walking,
running and
dancing
Major Muscles of the
Legs and Feet
Muscle
Tibialis
Anterior
Gastrocnemius
Soleus
Position
Front of the Lower
Leg
Forms the calf of
the leg
Lies under the
Gastrocnemius
Origin
Below the knee
joint on the two
bones of the lower
leg (Tibia & Fibula)
At the back of the
thigh bone
(Femur)
At the back of the
thigh bone
(Femur)
Insertion
Tarsal and
Metatarsal bones
inside the instep
Achilles Tendon
Achilles Tendon
Action
Raises the foot
towards the leg &
inverts the foot
Raises the body
as in walking,
running and
dancing
Raises the body
as in walking,
running and
dancing