Chapter 9

Watch this video (http://openstaxcollege.org/I/ synjoints) to see an animation of synovial joints in action. Synovial joints are places where bones articulate with each other inside of a joint cavity. The different types of synovial joints are the ball-and-socket joint (shoulder joint), hinge joint (knee), pivot joint (atlantoaxial joint, between C1 and C2 vertebrae of the neck), condyloid joint (radiocarpal joint of the wrist), saddle joint (first carpometacarpal joint, between the trapezium carpal bone and the first metacarpal bone, at the base of the thumb), and plane joint (facet joints of vertebral column, between superior and inferior articular processes). Which type of synovial joint allows for the widest ranges of motion?

Watch this animation (http://openstaxcollege.org/// hipreplace) to observe hip replacement surgery (total hip arthroplasty), which can be used to alleviate the pain and loss of joint mobility associated with osteoarthritis of the hip joint. What is the most common cause of hip disability?

Watch this video (http://openstaxcollege.org/I/ rheuarthritis) to learn about the symptoms and treatments for rheumatoid arthritis. Which system of the body malfunctions in rheumatoid arthritis and what does this cause?

Watch this video (http://openstaxcollege.org/I/ flexext) to learn more about the flexion and extension of the knee, as the femur both rolls and glides on the tibia to maintain stable contact between the bones in all knee positions. The patella glides along a groove on the anterior side of the distal femur. The collateral ligaments on the sides of the knee become tight in the fully extended position to help stabilize the knee. The posterior cruciate ligament supports the knee when flexed and the anterior cruciate ligament becomes tight when the knee comes into full extension to resist hyperextension. What are the ligaments that support the knee joint?

Watch this video (http://openstaxcollege.org/// anklejoint1) for a tutorial on the anatomy of the ankle joint. What are the three ligaments found on the lateral side of the ankle joint?

The joint between adjacent vertebrae that includes an invertebral disc is classified as which type of joint? a. diarthrosis b. multiaxial c. amphiarthrosis d. synarthrosis

Which of these joints is classified as a synarthrosis? a. the pubic symphysis b. the manubriosternal joint C. an invertebral disc d. the shoulder joint

Which of these joints is classified as a biaxial diarthrosis? a. the metacarpophalangeal joint b. the hip joint c. the elbow joint d. the pubic symphysis

Synovial joints ________. a. may be functionally classified as a synarthrosis b. are joints where the bones are connected to each other by hyaline cartilage c. may be functionally classified as a amphiarthrosis d. are joints where the bones articulate with each other within a fluid-filled joint cavity

Which type of fibrous joint connects the tibia and fibula? a. syndesmosis b. symphysis c. suture d. gomphosis

An example of a wide fibrous joint is ________. a. the interosseous membrane of the forearm b. a gomphosis c. a suture joint d. a synostosis

A gomphosis ________. a. is formed by an interosseous membrane b. connects the tibia and fibula bones of the leg c. contains a joint cavity d. anchors a tooth to the jaw

A syndesmosis is ________. a. a narrow fibrous joint b. the type of joint that unites bones of the skull c. a fibrous joint that unites parallel bones d. the type of joint that anchors the teeth in the jaws

A cartilaginous joint ________. a. has a joint cavity b. is called a symphysis when the bones are united by fibrocartilage c. anchors the teeth to the jaws d. is formed by a wide sheet of fibrous connective

A synchondrosis is ________. a. found at the pubic symphysis b. where bones are connected together with fibrocartilage c. a type of fibrous joint d. found at the first sternocostal joint of the thoracic cage

Which of the following are joined by a symphysis? a. adjacent vertebrae b. the first rib and the sternum c. the end and shaft of a long bone d. the radius and ulna bones

The epiphyseal plate of a growing long bone in a child is classified as a ________. a. synchondrosis b. synostosis c. symphysis d. syndesmosis

Which type of joint provides the greatest range of motion? a. ball-and-socket b. hinge c. condyloid d. plane

Which type of joint allows for only uniaxial movement? a. saddle joint b. hinge joint c. condyloid joint d. ball-and-socket joint

A bursa ________. a. surrounds a tendon at the point where the tendon crosses a joint b. secretes the lubricating fluid for a synovial joint c. prevents friction between skin and bone, or a muscle tendon and bone d. is the strong band of connective tissue that holds bones together at a synovial joint

At synovial joints, ________. a. the articulating ends of the bones are directly connected by fibrous connective tissue b. the ends of the bones are enclosed within a space called a subcutaneous bursa c. intrinsic ligaments are located entirely inside of the articular capsule d. the joint cavity is filled with a thick, lubricating fluid

At synovial joints, ________. a. the articulating ends of the bones are directly connected by fibrous connective tissue b. the ends of the bones are enclosed within a space called a subcutaneous bursa c. intrinsic ligaments are located entirely inside of the articular capsule d. the joint cavity is filled with a thick, lubricating fluid

At a synovial joint, the synovial membrane ________. a. forms the fibrous connective walls of the joint cavity b. is the layer of cartilage that covers the articulating surfaces of the bones c. forms the intracapsular ligaments d. secretes the lubricating synovial fluid

Condyloid joints ________. a. are a type of ball-and-socket joint b. include the radiocarpal joint c. are a uniaxial diarthrosis joint d. are found at the proximal radioulnar joint

A meniscus is ________. a. a fibrocartilage pad that provides padding between bones b. a fluid-filled space that prevents friction between a muscle tendon and underlying bone c. the articular cartilage that covers the ends of a bone at a synovial joint d. the lubricating fluid within a synovial joint

The joints between the articular processes of adjacent vertebrae can contribute to which movement? a. lateral flexion b. circumduction c. dorsiflexion d. abduction

Which motion moves the bottom of the foot away from the midline of the body? a. elevation b. dorsiflexion c. eversion d. plantar flexion

Movement of a body region in a circular movement at a condyloid joint is what type of motion? a. rotation b. elevation c. abduction d. circumduction

Supination is the motion that moves the ________. a. hand from the palm backward position to the palm forward position b. foot so that the bottom of the foot faces the midline of the body c. hand from the palm forward position to the palm backward position d. scapula in an upward direction

Movement at the shoulder joint that moves the upper limb laterally away from the body is called ________. a. elevation b. eversion c. abduction d. lateral rotation

The primary support for the glenohumeral joint is provided by the ________. a. coracohumeral ligament b. glenoid labrum c. rotator cuff muscles d. subacromial bursa

The proximal radioulnar joint ________. a. is supported by the annular ligament b. contains an articular disc that strongly unites the bones c. is supported by the ulnar collateral ligament d. is a hinge joint that allows for flexion/extension of the forearm

Which statement is true concerning the knee joint? a. The lateral meniscus is an intrinsic ligament located on the lateral side of the knee joint. b. Hyperextension is resisted by the posterior cruciate ligament. C. The anterior cruciate ligament supports the knee when it is flexed and weight bearing. d. The medial meniscus is attached to the tibial collateral ligament.

The ankle joint ________. a. is also called the subtalar joint b. allows for gliding movements that produce inversion/eversion of the foot c. is a uniaxial hinge joint d. is supported by the tibial collateral ligament on the lateral side

Which region of the vertebral column has the greatest range of motion for rotation? a. cervical b. thoracic C. lumbar d. sacral

Intramembranous ossification ________. a. gives rise to the bones of the limbs b. produces the bones of the top and sides of the skull c. produces the bones of the face and base of the skull d. involves the conversion of a hyaline cartilage model into bone

Synovial joints ________. a. are derived from fontanelles b. are produced by intramembranous ossification c. develop at an interzone site d. are produced by endochondral ossification

Endochondral ossification is ________. a. the process that replaces hyaline cartilage with bone tissue b. the process by which mesenchyme differentiates directly into bone tissue c. completed before birth d. the process that gives rise to the joint interzone and future joint cavity

Define how joints are classified based on function. Describe and give an example for each functional type of joint.

Distinguish between a narrow and wide fibrous joint and give an example of each.

The periodontal ligaments are made of collagen fibers and are responsible for connecting the roots of the teeth to the jaws. Describe how scurvy, a disease that inhibits collagen production, can affect the teeth.

Describe the two types of cartilaginous joints and give examples of each.

Both functional and structural classifications can be used to describe an individual joint. Define the first sternocostal joint and the pubic symphysis using both functional and structural characteristics.

Describe the characteristic structures found at all synovial joints.

Describe the structures that provide direct and indirect support for a synovial joint.

Discuss the joints involved and movements required for you to cross your arms together in front of your chest.

Discuss the structures that contribute to support of the shoulder joint.

Describe the sequence of injuries that may occur if the extended, weight- bearing knee receives a very strong blow to the lateral side of the knee.

Differentiate between endochondral and intramembranous ossification.