Question 1

A synchondrosis
A)allows bone growth.
B)equalizes pressure between vertebrae.
C)includes a joint capsule.
D)allows free movement.

Accepted Answer

A synchondrosis is a type of cartilaginous joint where hyaline cartilage connects bones. It is found in growth areas, such as the epiphyseal plate in long bones, allowing for bone growth.

Question 2

A patient has a condition in which collagen fibers are incorrectly manufactured and are non-functional. Which types of joints will be most heavily affected?
A)Synarthrotic, amphiarthrotic, and diarthrotic joints
B)Syndesmosis, suture, and gomphosis joints
C)Synchondrosis, symphysis, and synovial joints
D)Pivot, condylar, and ellipsoidal joints

Accepted Answer

B

Question 3

A tooth root attached to a jawbone by a periodontal ligament is a ________.
A)synchondrosis
B)syndesmosis
C)gomphosis
D)synovial joint

Accepted Answer

A tooth root attached to a jawbone by a periodontal ligament is an example of a gomphosis, which is a type of joint where a tooth is anchored to the jawbone. Synchondrosis is a joint where bones are joined by hyaline cartilage, syndesmosis is a type of joint where bones are joined by a fibrous membrane, and a synovial joint is a joint where bones are separated by a fluid-containing joint cavity.

Question 4

Bones of a synovial joint are held together by
A)a synovial membrane.
B)a joint capsule.
C)a meniscus.
D)articular cartilage.

Accepted Answer

Synovial joints are held together by a joint capsule, which surrounds the joint and provides stability. This capsule is made up of two layers: an outer fibrous layer and an inner synovial membrane that produces synovial fluid, which lubricates the joint. Articular cartilage covers the ends of the bones, and a meniscus is a structure found in some joints (such as the knee) that provides additional cushioning and support.

Question 5

A gomphosis is a ________ joint.
A)fibrous
B)cartilaginous
C)synovial
D)synchondrosis

Accepted Answer

A gomphosis is a type of fibrous joint where the root of a tooth inserts into the jawbone.

Question 6

Cartilaginous joints are connected by
A)synovial fluid.
B)fibrous connective tissue.
C)hyaline cartilage or fibrocartilage.
D)a joint capsule.

Accepted Answer

Cartilaginous joints are connected by hyaline cartilage or fibrocartilage, which allows for slight movement and provides cushioning between bones.

Question 7

Classifying joints as synarthrotic, amphiarthrotic, or diarthrotic represents
A)location in the body.
B)the composition of the joint.
C)the number of bones that the joint affects.
D)the degree of movement possible at the joint.

Accepted Answer

Classifying joints as synarthrotic (immovable), amphiarthrotic (slightly movable), or diarthrotic (freely movable) represents the degree of movement possible at the joint. The other choices do not accurately represent the basis of joint classification.

Question 8

Which of the following is not a type of fibrous joint?
A)Syndesmosis
B)Coronal suture
C)Gomphosis
D)Symphysis

Accepted Answer

Symphysis is a type of cartilaginous joint, not a fibrous joint. Fibrous joints are connected by dense connective tissue, whereas symphyses are connected by a fibrocartilage pad.

Question 9

Suppose the pubic symphysis did not exist in the pelvic girdle and the two pubic bones were fused in the middle. Which of the following best describes the way the region would be affected if this joint was removed?
A)The femurs would have a limited range of motion without the high-mobility symphysis joint.
B)The femurs would grind inside the acetabulum and cause pain because of a lack of cartilage.
C)The pelvic girdle would be highly unstable because the pubic symphysis adds stability and rigidity.
D)Childbirth would have a high mortality risk because the pelvic girdle would be rigid and unmoving.

Accepted Answer

The pubic symphysis is a cartilaginous joint that allows for slight movement to accommodate the passage of a baby during childbirth. If it were fused, the pelvic girdle would lose this flexibility, making childbirth more difficult and potentially increasing mortality risk.

Question 10

The intermediate radioulnar joint exists between the radius and the ulna. The two bones are joined together by a high-collagen sheet of dense connective tissue. This joint allows slight movements and flexibility between the two bones. What specific type of joint is this?
A)A synovial plane joint
B)A fibrous syndesmotic joint
C)A cartilaginous synchondrosis joint
D)A cartilaginous symphysis joint

Accepted Answer

The intermediate radioulnar joint is a fibrous syndesmotic joint, characterized by the bones being joined by a ligament (high-collagen sheet of dense connective tissue), allowing for slight movement and flexibility.

Question 11

A synovial membrane
A)is very thick with many layers of cells.
B)secretes serous fluid.
C)secretes mucus.
D)secretes synovial fluid.

Accepted Answer

A synovial membrane is a thin layer of connective tissue that lines the inside of a joint capsule and secretes synovial fluid, which helps lubricate the joint and prevent friction between the bones. It is not very thick and does not secrete serous or mucus fluid.

Question 12

The joint between adjacent vertebral bodies is a
A)symphysis that is amphiarthrotic.
B)symphysis that is synarthrotic.
C)symphysis that is diarthrotic.
D)synovial that is synarthrotic.

Accepted Answer

The joint between adjacent vertebral bodies is a symphysis, which is a type of joint that is amphiarthrotic, meaning it allows for limited movement. Synarthrotic joints do not allow for any movement, diarthrotic joints allow for a wide range of movement, and synovial joints are characterized by the presence of a synovial fluid-filled cavity and allow for a wide range of movement.

Question 13

Suppose all synarthrotic joints were fused in an individual. Which of the following would be true of this individual?
A)The person would not be able to flex their fingers and grasp objects.
B)Braces would not work to straighten the person's teeth because their teeth would not move.
C)The person would not be able to bend forward because their vertebral column would be fused.
D)Head-turning would be impossible because the atlas and axis would be fused.

Accepted Answer

Synarthrotic joints are immovable joints, such as the sutures in the skull and the gomphoses in the teeth. If these joints were fused, teeth would not move, making braces ineffective.

Question 14

Types of fibrous joints include
A)synarthrotic, amphiarthrotic, and diarthrotic joints.
B)syndesmosis, suture, and gomphosis joints.
C)synchondrosis, symphysis, and synovial joints.
D)pivot, condylar, and ellipsoidal joints.

Accepted Answer

Fibrous joints are joints where bones are joined by fibrous tissue such as collagen. Syndesmosis joints which connect bones with ligaments, suture joints which are found in the skull and are very tightly bound, and gomphosis joints which connect teeth to their sockets are examples of fibrous joints.

Question 15

A fibrous joint in which an interosseous ligament binds bones is a
A)synchonrosis.
B)syndesmosis.
C)gomphosis.
D)symphysis.

Accepted Answer

A syndesmosis is a fibrous joint in which bones are bound together by interosseous ligaments, giving them some degree of movement. An example of a syndesmosis joint is the distal tibiofibular joint. A synchondrosis is a type of joint that is joined together by hyaline cartilage, while a gomphosis is the joint between a tooth and its socket. Symphysis is a type of joint where two bones are joined by a fibrocartilaginous disc or pad.

Question 16

If the synovial membrane could not secrete synovial fluid,
A)the onset of arthritis would be slowed because synovial fluid generates friction within the joint capsule.  
B)blood would not directly flow into the joint capsule to nourish cartilage.
C)the cartilage contained within the capsule would not receive nutrients from synovial membrane blood vessels.
D)new cartilage would not be generated because synovial fluid is a stimulant for cartilage production.

Accepted Answer

The synovial fluid provides nutrients to the cartilage, as cartilage is avascular and relies on diffusion from the synovial fluid for nourishment.

Question 17

A suture is an example of a
A)fibrous joint.
B)cartilaginous joint.
C)synovial joint.
D)plane joint.

Accepted Answer

A suture is a fibrous joint that occurs between bones of the skull. The bones are held together by dense fibrous tissue called sutural ligaments, which allow for very little movement between the bones.

Question 18

In craniosynostosis, the bones of the skull fuse together at the sutures prematurely, causing the brain to grow abnormally. Why would this cause abnormal brain growth?
A)The sutures are amphiarthrotic and slightly move during brain growth, so the plates of the skull can easily move to suit any direction of brain growth. Fusion at the sutures will prevent this free movement.
B)Because the sutures contain ligaments, blows to the skull can be absorbed by plate movement. Removal of the sutures will cause any slight blow to damage the brain.
C)The sutures are synarthrotic and do not move, only allowing expansion from within as the brain grows to fill the brain case. Fusion at the sutures will prevent this expansion.
D)Sutures are large gaps between bones that are filled with synovial fluid. This synovial fluid allows for the brain to expand into the spaces. Ossification of the sutures would prevent the expansion of the brain.

Accepted Answer

The sutures in the skull are not completely rigid and allow for some movement to accommodate brain growth. When these sutures fuse prematurely in craniosynostosis, it restricts the natural expansion of the growing brain, leading to abnormal growth patterns.

Question 19

Joints are also called
A)annotations.
B)articulations.
C)affectations.
D)affiliations.

Accepted Answer

Joints are also known as articulations, which refer to the point where two or more bones come together. None of the other options accurately describe joints.

Question 20

Greg trips over a toy and experiences a sharp pain. His physician diagnoses a torn meniscus. Greg has injured his
A)knee joint.
B)elbow joint.
C)shoulder joint.
D)hip joint.

Accepted Answer

The menisci (plural of meniscus) are crescent-shaped pieces of cartilage that act as shock absorbers between the thigh bone (femur) and the shin bone (tibia) in the knee joint. A torn meniscus is a common knee injury, often caused by twisting or turning suddenly while the foot is planted, as in Greg's case of tripping over a toy.

Quiz 8: Joints of the Skeletal System

A synchondrosis

A patient has a condition in which collagen fibers are incorrectly manufactured and are non-functional. Which types of joints will be most heavily affected?

A tooth root attached to a jawbone by a periodontal ligament is a ________.

Bones of a synovial joint are held together by

A gomphosis is a ________ joint.

Cartilaginous joints are connected by

Classifying joints as synarthrotic, amphiarthrotic, or diarthrotic represents

Which of the following is not a type of fibrous joint?

Suppose the pubic symphysis did not exist in the pelvic girdle and the two pubic bones were fused in the middle. Which of the following best describes the way the region would be affected if this joint was removed?

The intermediate radioulnar joint exists between the radius and the ulna. The two bones are joined together by a high-collagen sheet of dense connective tissue. This joint allows slight movements and flexibility between the two bones. What specific type of joint is this?

A synovial membrane

The joint between adjacent vertebral bodies is a

Suppose all synarthrotic joints were fused in an individual. Which of the following would be true of this individual?

Types of fibrous joints include

A fibrous joint in which an interosseous ligament binds bones is a

If the synovial membrane could not secrete synovial fluid,

A suture is an example of a

In craniosynostosis, the bones of the skull fuse together at the sutures prematurely, causing the brain to grow abnormally. Why would this cause abnormal brain growth?

Joints are also called

Greg trips over a toy and experiences a sharp pain. His physician diagnoses a torn meniscus. Greg has injured his