PAM Anatomy & Physiology Fundamentals 4

Question 1

Which layer of the skin contains blood vessels, lymphatics, and sensory receptors, and is the primary target of thermal PAMs affecting deep tissue?

Accepted Answer

Dermis

Answer

The dermis contains blood vessels, nerve endings, and sensory receptors, and is the layer most relevant to the physiological effects of superficial thermal agents.

Question 2

The Gate Control Theory of pain, relevant to many PAM applications, proposes that pain modulation occurs primarily at which anatomical location?

Accepted Answer

Dorsal horn of the spinal cord

Answer

The Gate Control Theory (Melzack & Wall) proposes that a 'gate' in the dorsal horn of the spinal cord can modulate pain signals before they ascend to the brain.

Question 3

What is the term for the movement of a body segment away from the midline of the body?

Accepted Answer

Abduction

Answer

Abduction refers to movement of a limb or body part away from the midline, such as raising the arm laterally from the side of the body.

Question 4

During wound healing, which phase is characterized by collagen synthesis and fibroblast proliferation?

Accepted Answer

Proliferative (fibroplasia) phase

Answer

The proliferative phase (days 4-21) involves fibroblast migration and collagen production, forming granulation tissue to fill the wound.

Question 5

Which property of nerve fibers determines their conduction velocity?

Accepted Answer

Diameter of the axon and presence of myelin sheath

Answer

Larger diameter axons and the presence of myelin sheath (saltatory conduction) significantly increase nerve conduction velocity.

(PAM) Physical Agent Modalities Certification Practice Test

(PAM) Physical Agent Modalities Certification Practice Test

PAM Anatomy & Physiology Fundamentals 4