10. Muscles

In muscle actions, what is the primary function of a synergist muscle during a movement?

Which muscle is the primary extensor of the forearm at the elbow joint?

Which muscle is the primary agonist responsible for extension of the elbow joint?

Which muscle is the primary extensor of the thigh at the hip joint?

Muscles can act in different ways during a particular movement. What is the role of the antagonist?

Which muscle is the primary flexor of the forearm at the elbow joint?

Which facial muscle is primarily used to whistle by compressing the cheeks against the teeth and aiding in blowing?

Bending the trunk forward (spinal flexion), such as when performing an abdominal crunch, primarily uses which muscle?

Contraction of the pectoralis minor muscle results in which of the following actions?

Which action is primarily produced by the biceps brachii muscle?

Which muscle is responsible for the rotation of the scapula and depression of the shoulder?

The adductor longus muscle attaches to which of the following bones?

Which of the following is a likely effect of having increased muscle mass?

Which muscle group is primarily responsible for extending the knee joint?

Which of the following tendons is primarily responsible for bending and straightening the knee?