CH 8 MAP questions – Flashcards
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All three joints in the figure are classified as __________.
Features of joints found in the skull, distal bones, and teeth.
fibrous joints
cartilaginous joints
synovial joints
answer
fibrous
rationale: In all three joints, bones are directly connected by dense fibrous tissue to form a joint lacking a cavity.
question
Which of these terms best categorizes the joints in the figure?
Features of joints found in the growth plates, ribs, vertebrae, and pelvis.
cartilaginous joints
synovial joints
fibrous joints
answer
cartilaginous joints
rationale: All of these joints are composed primarily of cartilage (hyaline and/or fibrocartilage).
question
The arrows in B and C point to structures that can both be described as __________.
Features of joints found in the skull, distal bones, and teeth.
ligaments
muscles
bones
tendons
answer
ligaments
rationale: The band of fibrous tissue that connects two bones is generally referred to as a ligament. In the case of the gomphosis shown in C, the fibrous connection is specifically termed the periodontal ligament.
question
Using the structural classification, what type of joint is a suture?
amphiarthrotic joint
synarthrotic joint
fibrous joint
cartilaginous joint
answer
fibrous joint
rationale: Sutures are fibrous, synarthrotic joints.
question
Structures C and D collectively form which of the following?
Features of a freely moving joint.
synovial membrane
articular capsule
ligament
bursae
answer
articular capsule
rationale: The synovial membrane and the fibrous layer that covers it collectively form the articular capsule.
question
Which of the following is NOT a factor that contributes to joint stability?
the amount of muscle tone applied to tendons that cross the joint
the amount of synovial fluid in the joint cavity
the shape of the articulating surfaces
the number and positioning of reinforcing ligaments
answer
the amount of synovial fluid in the joint cavity
rationale: The amount of synovial fluid in the joint cavity is not a factor that contributes to joint stability. The major role of synovial fluid is to lubricate the joint surfaces of freely movable (synovial) joints.
question
Which of the following best describes all of the joints in this figure?
Features of joints found in the skull, distal bones, and teeth.
They are freely movable.
They are movable, but only within a small range.
They are immovable.
answer
They are immovable.
rationale: These joints are all considered to be immovable during normal conditions.
question
What element of intervertebral disc fibrocartilage gives it its ability to resist stretching?
elastic fibers
calcium
collagen fibers
articular cartilage
answer
collagen fibers
question
Which of the following is NOT a distinguishing feature of a synovial joint?
hyaline cartilage connecting the two bones of the joint
synovial fluid
ligaments connecting the two bones of the joint
a capsule that creates a space in the joint
answer
hyaline cartilage connecting the two bones of the joint
rationale: Hyaline cartilage makes up the articular cartilage in a synovial joint, but this does not connect the two sides together.
question
Articular cartilage found at the ends of the long bones serves to ________.
attach tendons
form the synovial membrane
provide a smooth surface at the ends of synovial joints
produce red blood cells (hemopoiesis)
answer
provide a smooth surface at the ends of synovial joints
question
What factor would account for a strong synovial joint?
synovial fluid
the deepest articular surface
low muscle tone
small reinforcing ligaments
answer
the deepest articular surface
