Exam Questions and CORRECT Answers
Types of bone growth - CORRECT ANSWER - Length= interstitial growth
Width= appositional growth
Bone is what type of tissue - CORRECT ANSWER - Connective
Bone structure - CORRECT ANSWER - Be able to label these parts- articular (hyaline)
cartilage, epiphysis, diaphysis, periosteum, endosteum, medullary cavity, red marrow, yellow
marrow, spongy bone, epiphyseal plate/line, sharpey's fibers (perforating)
Types of bone fractures - CORRECT ANSWER - Comminuted- bone fragments into three
or more pieces
Compression- bone is crushed
Spiral- ragged break occurs when excessive twisting forces are applied to a bone
Epiphyseal- epiphysis separates from the diaphysis along the epiphyseal plate
Depressed- broken bone portion is pressed inward
Green stick- bone breaks incompletely much in the way a green twig breaks. Only one side of the
shaft breaks and the other side bends
Describe and define - CORRECT ANSWER - Articulation- (joint) where two bones come
together
Hematopoiesis- formation of blood in spongy bone
Fontanel- space between bones of the skull in an infant or fetus where ossification is not
complete and the sutures are not fully formed
Hyoid- U shaped bone in neck that supports the tongue
Foramen magnum- hole in the base of the skull
Maxilla- jaw or jawbone; also forms part of the nose and eye socket
, Types of joints - CORRECT ANSWER - Plane- gliding (carpals)
Hinge- flexion/extension (elbow,knee)
Pivot- rotation (atlas/axis, radius/ulna)
Condyloid- all angular motions (wrist, knuckle)
Saddle- all angular motions (thumb)
Ball and socket- universal movement - most freely moving joints in the body (shoulders, hips)
Classification of bones - CORRECT ANSWER - Long bones- greater length than width;
have distinct diaphysis; slightly curved for strength; Examples: humerus, ulna, femur, tibia,
fibula, metacarpals, metatarsals, phalanges
Short bones- somewhat cube shaped; nearly equal in length and width; spongy texture on inside;
includes the carpal and tarsal bones
Flat bones- generally thin and flat; compact bone on outside with spongy bone in the middle;
greater surface area for muscle attachment; Examples: cranial bones, sternum, scapula, ribs
Irregular bones- complex shaped; can't be classified into other categories; vary in the amount of
spongy and compact bone; Examples: vertebrae, facial bones
Sesamoid bones- small bones situated in tendons where considerable pressure develops;
kneecaps; some bones in hands and feet
Bones of axial skeleton - CORRECT ANSWER - skull, vertebral column, thoracic cage
bones of the appendicular skeleton - CORRECT ANSWER - Bones of arms and legs,
shoulder girdle, pelvic girdle
Role of the Epiphyseal Plate in Bone Growth - CORRECT ANSWER - The epiphyseal
line marks where two centers of ossification have fused together; line=no growth
Parts of the rib cage - CORRECT ANSWER - All articulate with the thoracic vertebrae
True ribs- pairs 1-7; ribs that directly connect to the sternum via hyaline cartilage
False ribs- pairs 8-12; attach indirectly to sternum by joining hyaline cartilage of rib above