50 Questions
What is the function of joints in the skeletal system?
Provide strength and flexibility
Which type of joint in the skeletal system is characterized by fibrous tissue joining the bones without a joint cavity?
Fibrous joints
What is the main function of synovial fluid in synovial joints?
Act as a lubricant for joint movement
Which type of joint has hyaline cartilage uniting the bones and is immovable?
Cartilaginous joints
What is the role of reinforcing ligaments in joints?
Prevent dislocation of bones
Which part of a synovial joint allows for 'give' or flex during movement?
Joint capsule
Which type of joint has fibrocartilage uniting the bones and provides resilience as a shock absorber?
Symphyses
What is the primary characteristic that distinguishes synovial joints from fibrous and cartilaginous joints?
Movement capability due to synovial fluid in the joint cavity
What type of joint allows for only movement in one plane, specifically flexion and extension?
Hinge joint
Which type of joint allows rotation of a bone around its long axis?
Pivot joint
In which type of joint does the oval articular surface of one bone fit into a concavity of another bone?
Saddle joint
Which type of joint has both a concave and a convex surface that fit together, resembling a saddle?
Saddle joint
What type of joint is exemplified by the shoulder and hip joints, allowing movement in all planes?
Ball and socket joint
Which type of joint in the thumb is the best example of a saddle joint?
Metacarpophalangeal (MCP) joints
Which part of the synovial joint secretes synovial fluid to lubricate the joint?
Synovial membrane
"Reinforcing ligaments" in a synovial joint are responsible for:
Attaching bones together and providing stability
What is the primary role of articular surfaces in influencing joint stability?
Usually playing only a minor role in stability
How much can ligaments stretch beyond their normal length before tearing?
6%
What is the function of muscle tone in relation to joint stability?
Maintains constant low-level contractile force on ligaments
Which of the following is NOT an angular movement that occurs along the sagittal plane?
Adduction
What type of movement involves flexion + abduction + extension + adduction of a limb?
Circumduction
Which motion involves turning the hand backward?
Supination
In hinge joints, what type of motion occurs between bone components?
Flexion and extension
'Opposition of the thumb' involves a movement in which type of joint?
Saddle joint
What is the function of synovial fluid in the joints?
To cushion and lubricate the joint structures
What is the primary purpose of bursae in relation to joints?
To provide a cushion between structures that rub together
Which structure is responsible for reducing friction between tendons and bones subjected to movement?
Tendon sheath
What is the Latin meaning of 'bursa' in the context of joints?
'Purse'
In a synovial joint, what is the primary role of the articular disc or meniscus?
To connect bone ends of different shapes together
How do bursae contribute to joint function?
By acting as a cushion and reducing friction between structures
Which component of a synovial joint acts like a protective sac lined by synovial membrane?
Bursa
What is the main function of reinforcing ligaments in a joint?
To strengthen and stabilize the joint structure
What is the main function of articular cartilage in the joints?
To absorb compression and protect ends of bones from being crushed
Which type of ligament is part of the fibrous capsule of a joint?
Capsular (intrinsic)
What is the function of synovial fluid in the joints?
Nourishes cartilage and acts as a lubricant
What is the inner layer of the articular capsule made of?
Synovial membrane
Which structure in the joint helps to monitor stretch and sense body movements?
Nerves
What is the function of reinforcing ligaments in some joints?
Reinforce the joint structure
What does the weeping lubrication process involve?
Squeezing synovial fluid into and out of the cartilage to nourish cells
What is the composition of the outer layer of the articular capsule?
Fibrous capsule
Describe the unique movement allowed by hinge joints.
Uniaxial movement in one plane, like flexion and extension
What type of movement is permitted by pivot joints?
Rotation around its long axis
Explain the characteristic movement of condyloid joints.
Movement in two planes: flexion, extension, abduction, adduction, and circumduction
What is the defining feature of saddle joints?
Bones have both concave and convex surfaces that fit together like a rider sitting in a saddle
Describe the range of motion allowed by ball and socket joints.
Multiaxial movement in all planes: flexion, extension, abduction, adduction, rotation, and circumduction
Which type of joint allows for only movement in one plane?
Hinge joints
What type of joint enables rotation of a bone around its long axis?
Pivot joint
Which joint type has both concave and convex surfaces that fit together?
Saddle joint
In which joint type can bones move in multiple directions?
Condyloid joint
Which joint type provides the highest degree of movement in all planes?
Ball and socket joint
Learn about the different classes of joints, synovial joints, and range of movements of different joints in the musculoskeletal system. This quiz is based on Week 28 of the MPharm Programme and covers the lecture by Dr. Praveen Bhugra.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
