CPI Anatomy & Kinesiology 5

Question 1

Which muscle group is primarily responsible for flexing the hip, and can be strained when staff forcefully extend a combative person's leg?

Accepted Answer

Hip flexors (iliopsoas)

Answer

The iliopsoas and other hip flexors can be overstretched or strained when the hip is forced into rapid extension against muscle resistance.

Question 2

During a two-person escort hold, staff walking on a person's right side should control which part of the body?

Accepted Answer

The person's right wrist and elbow on the same side

Answer

Each escort staff member controls the wrist and elbow on the same side as their position, maintaining a secure grip while allowing forward movement.

Question 3

Compression of the axillary nerve, which wraps around the surgical neck of the humerus, can result in weakness of which movement?

Accepted Answer

Shoulder abduction and lateral rotation

Answer

The axillary nerve innervates the deltoid and teres minor muscles, so injury causes weakness in shoulder abduction and lateral rotation.

Question 4

Which anatomical feature makes the knee joint particularly susceptible to lateral (valgus) stress injuries during standing restraint positions?

Accepted Answer

The knee primarily flexes and extends with limited lateral stability from bony architecture

Answer

The knee is a hinge joint relying heavily on ligaments (MCL, LCL, ACL, PCL) for lateral stability; valgus stress can tear the MCL or ACL.

Question 5

Why is it important for crisis intervention staff to avoid applying pressure directly to the trachea?

Accepted Answer

Tracheal compression obstructs the airway and can rapidly cause asphyxia

Answer

The trachea is the main airway; direct compression collapses it and cuts off oxygen flow to the lungs, causing hypoxia and potential death within minutes.

(CPI) Crisis Prevention Intervention Certification Practice Test

(CPI) Crisis Prevention Intervention Certification Practice Test

CPI Anatomy & Kinesiology 5