Movements

Question 1

What is Abduction?

Answer 1

Abduction is moving limbs away from the
body.
An example is moving the arm with the shoulder joint which is a ball and socket joint.
The humerus which is our upper arm bone is a type of long bone. The deltoid contracts to lift the humerus.

Question 2

What is adduction?

Answer 2

Adduction is moving limbs back towards the
body.

Adduction is the opposite of
abduction so again the ball and socket shoulder joint is
responsible. Then the deltoid muscle relaxes, it brings the humerus long bone down again.

Question 3

What is flexion?

Answer 3

Flexion is bending at a joint causing the
angle to decrease.
Such as bringing our
limbs closer to our body. The hinged joint
allows the biceps to contract and pull on
the long bones in our arm such as the
radius to allow flexion movement

Question 4

What is extension?

Answer 4

Extension is the opposite to flexion and it is the angle increasing. This means that the
bicep would relax bringing the long bones back down such as the ulna. This movement
happens because of the hinge joint.

Question 5

What is rotation?

Answer 5

Rotation is movement left and right.

For example, in our leg the ball and
socket joint at the hip allows us to move our leg left to right. The iliopsoas
and adductor muscles pull on the femur which is a long bone to allow
rotation.

Question 6

What is circumduction?

Answer 6

Circumduction is movement in a circular manner. For
example, at the hip, the ball and socket allows the
gluteal muscles and adductor muscles to move the leg
long bones like the femur in a circular motion.

Question 7

What is dorsiflexion?

Answer 7

Dorsiflexion is the movement at the hinge
ankle joint. It involves bringing the foot up
towards the body. “Tibialis anterior, extensor
digitorum longus, extensor hallucis longus, and
peroneus tertius act together to produce
dorsiflexion.” (The ankle: joint structure,
movements, muscles) It moves the navicular,
cuboid, cuneiform bone which are short bones
to allow for this movement.

Question 8

What is planterflexion

Answer 8

Plantarflexion the muscles “gastrocnemius,
plantaris, soleus, tibialis posterior,
peroneus longus and brevis, flexor digitorum
longus and flexor hallucis longus.” (The ankle:
joint structure, movements, muscles) are
responsible for plantarflexion at the ankle
hinge joint. Plantarflexion is moving the foot
down away from the body. It moves the
navicular, cuboid, cuneiform bone which are
short bones to allow for this movement.