Chapter 19: Orthopedic Surgery

Chapter 19: Orthopedic Surgery

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

MULTIPLE CHOICE

1. Identify the layer of connective tissue that covers all bone.

ANS:  A

A layer of connective tissue called periosteum covers all bone.

REF:   Page 719

2. A long bone fracture in a child can have devastating consequences in terms of the child’s skeletal maturity and potential for limb shortening and malformation when the fracture line involves the:

ANS:  C

Long bones consist of a shaft (diaphysis) and two ends (epiphyses). The shaft is composed of compact bone. The epiphyses flare out and consist of cancellous bone. They are covered by cartilage, which provides a cushion and offers protection during weight-bearing and movement. Until skeletal maturity, a line of cartilage called the epiphyseal plate separates the epiphysis from the diaphysis. Fractures in this region in children can be devastating because they often lead to malformation and permanent limb shortening.

REF:   Page 720

3. The rotator cuff consists of which group of muscles?

ANS:  B

The muscles immediately surrounding the shoulder joint are the supraspinatus, infraspinatus, teres minor, and subscapularis muscles; together they are referred to as the rotator cuff. These muscles stabilize the shoulder joint, whereas the powerful deltoid, pectoralis major, teres major, and latissimus dorsi muscles move the entire arm.

REF:   Page 723

4. The scaphoid, also called the navicular, links the proximal row of carpal bones as it:

ANS:  C

Functionally, the scaphoid links the rows as it stabilizes and coordinates the movement of the proximal and distal rows. The eight carpal bones in the wrist are arranged in two rows. The distal row, proceeding from the radial to the ulnar side, includes the trapezium, trapezoid, capitate, and hamate; the proximal row consists of the scaphoid (also called the navicular), lunate, triquetrum, and pisiform. Each carpal bone consists of several smooth articular surfaces for contact with the adjacent bones, as well as rough surfaces for the attachment of ligaments.

REF:   Pages 723-724 (Figure 19-5)

5. The vertebral bodies are connected by several cartilaginous joints. What purpose does this connection enable?

ANS:  B

Vertebrae form the longitudinal axis of the skeleton. The vertebral bodies are connected by several cartilaginous joints that enable the vertebrae to flex, extend, or rotate while being held together. Intervertebral disks and ligaments connect the bodies of adjacent vertebrae. The ligamenta flava bind the laminae of adjacent vertebrae.