Chapter 9: Exam 3

Which muscle is located in the neck and is responsible for rotating and flexing the head?

• Frontalis

• Masseter

• Sternocleidomastoid

• Trapezius

What term refers to the fixed attachment point of a muscle?

• Insertion

• Belly

• Origin

• Fulcrum

Which of the following muscles elevates the jaw and is found in the head region?

• Temporalis

• Deltoid

• Biceps brachii

• Masseter

The __________ is a muscle that raises the eyebrows and is located in the forehead region.

Which muscle’s name tells you it is triangle-shaped?

• Latissimus dorsi

• Deltoid

• Sartorius

• Triceps

What is the insertion of the biceps brachii?

• Radius

• Scapula

• Ulna

• Deltoid tuberosity

Which muscle assists with flexing the elbow and is classified as a synergist to the biceps brachii?

• Triceps brachii

• Brachialis

• Deltoid

• Flexor carpi ulnaris

Which of the following terms refers to the nerve supply that stimulates a muscle?

• Innervation

• Origin

• Insertion

• Fixation

The primary action of the quadriceps femoris is to:

• Flex the thigh

• Extend the leg at the knee

• Rotate the thigh laterally

• Abduct the thigh

What happens to the muscular system with aging?

• Muscles increase in size and elasticity

• Reflexes become faster

• Muscle mass decreases and is replaced with fibrous tissue

• Flexibility improves with time