PAS Anatomy & Physiology of Posture

Question 1

Which muscle group primarily supports the natural curvature of the lumbar spine?

Accepted Answer

Erector spinae muscles

Answer

Quadriceps muscles

Answer

Hamstring muscles

Answer

Deltoid muscles

Question 2

What is the main function of the intervertebral discs in posture?

Accepted Answer

To serve as shock absorbers between vertebrae

Answer

To connect muscles to bones

Answer

To produce red blood cells

Answer

To stabilize the knee joint

Question 3

Which plane divides the body into front and back and is important for assessing posture?

Accepted Answer

Coronal (frontal) plane

Answer

Sagittal plane

Answer

Transverse plane

Answer

Oblique plane

Question 4

Which anatomical landmark is used to evaluate pelvic tilt in posture assessment?

Accepted Answer

Anterior superior iliac spine (ASIS)

Answer

Greater trochanter

Answer

Spinous process of C7

Answer

Medial malleolus

Question 5

Which nervous system component is primarily responsible for maintaining posture through muscle tone?

Accepted Answer

Peripheral nervous system

Answer

Central nervous system

Answer

Autonomic nervous system

Answer

Sympathetic nervous system

Question 6

What type of joint is primarily found in the spine allowing for flexibility in posture?

Accepted Answer

Synovial joint

Answer

Fibrous joint

Answer

Cartilaginous joint

Answer

Suture joint

Question 7

Which muscle is primarily responsible for neck extension and maintaining head posture?

Accepted Answer

Trapezius muscle

Answer

Pectoralis major muscle

Answer

Rectus abdominis muscle

Answer

Biceps brachii muscle

Question 8

What effect does tight hamstring muscles have on posture?

Accepted Answer

Leads to posterior pelvic tilt

Answer

Causes anterior pelvic tilt

Answer

Increases thoracic kyphosis

Answer

Strengthens spinal extensors

Question 9

Which system works closely with muscles to provide feedback about body position and movement?

Accepted Answer

Proprioceptive system

Answer

Respiratory system

Answer

Cardiovascular system

Answer

Digestive system