Antagonist muscle pairs 1

Which muscle is the antagonist when the Rectus femoris is concentrically contracting as the agonist for knee Extension?

• Semitendinosis

• Semimembranosis

• Biceps Femoris

• iliopsoas

The agonist for shoulder adduction is?

• Anterior deltoid

• Posterior deltoid

• Medial deltoid

• Latissimus dorsi

The agonist for plantar flexion is?

• Tibialis anterior

• Gastrocnemius

• Soleus

• Achilles tendon

The antagonist for adduction of the hip is?

• adductor brevis

• Adductor longus

• Gluteus maximus

• Gluteus medius

Match the muscles into antagonistic pairs

• Illiopsoas

• Latissimus dorsi

• medial deltoid

• gluteus maximus

• Posterior deltoid

• anterior deltoid

• Triceps brachii

• adductor longus

• gluteus medius

• Biceps Brachii

When a muscle is applying a force but there is NO motion it is a ? type of contraction.

• Concentric contraction

• eccentric

• isometric

• Fixator

A fixator muscle will be contracting?

• Isometrically

• Concentrically

• eccentrically

• none its relaxing in opposition

A muscle lengthening while exerting a force will be contracting?

• Eccentrically

• Concentrically

• Isometrically

• none of these