Chapter 5.3-1 :The Major Skeletal Muscles - Directional Motions

Multiple Choice

Which of the following best describes the primary function of the muscular system?

• To circulate blood throughout the body

• To provide movement and maintain posture

• To produce hormones

• To protect internal organs

Multiple Choice

Which of the following statements about skeletal muscles is correct?

• The human body contains more than 650 skeletal muscles.

• All skeletal muscles are attached only to bones.

• Skeletal muscles are not involved in functional movement.

• Skeletal muscles do not work in pairs.

Multiple Choice

Which terms are used to describe the two ends of a skeletal muscle?

• Origin and insertion

• Flexor and extensor

• Agonist and antagonist

• Proximal and distal

Multiple Choice

Which term refers to the fixed end of a muscle?

• Origin

• Insertion

• Flexion

• Extension

Open Ended

Explain the differences between the sagittal, frontal, and transverse planes in terms of the types of movements they allow.

Multiple Select

Which of the following movements occur in the sagittal plane?

• Flexion

• Extension

• Hyperextension

• Abduction

Multiple Choice

Based on the diagram, which movement involves increasing the angle between body segments beyond the anatomical position?

• Flexion

• Extension

• Hyperextension

• Plantar flexion

Multiple Choice

Which of the following movements occurs mainly in the frontal plane when rolling the sole of the foot inward?

• Inversion

• Eversion

• Abduction

• Radial deviation

Multiple Select

Select all movements that are classified as frontal plane movements.

• Abduction

• Inversion

• Radial deviation

• Pronation

Multiple Choice

Which of the following is a multiplanar movement that involves tracing a circle with a body segment?

• Circumduction

• Opposition

• Supination

• Abduction

Multiple Choice

Which of the following statements about muscle movements is correct?

• Circumduction is a multiple plane movement.

• Supination is a multiple plane movement.

• The insertion is the fixed end of a muscle.

• Adduction is a transverse plane movement.