structure and function of synovial joints Flashcards
What are synovial joints?
Synovial joints are joints that are characterized by a fluid-filled joint cavity, allowing for a wide range of motion.
True or False: Synovial joints are the least movable type of joints in the human body.
False
Fill in the blank: The primary function of synovial fluid is to __________.
lubricate the joint and reduce friction.
Which type of synovial joint allows for the greatest range of motion?
Ball-and-socket joints.
What are the main components of a synovial joint?
Articular cartilage, synovial membrane, joint capsule, synovial fluid, ligaments, and sometimes menisci.
Multiple Choice: Which of the following is NOT a type of synovial joint? A) Hinge B) Pivot C) Suture D) Ball-and-socket
C) Suture
What role do ligaments play in synovial joints?
Ligaments connect bones to other bones and provide stability to the joint.
True or False: The synovial membrane produces synovial fluid.
True
Short Answer: Name one function of articular cartilage.
To reduce friction and absorb shock between articulating bones.
What is the purpose of the joint capsule in synovial joints?
To enclose the joint and provide stability while allowing movement.
Fill in the blank: Synovial joints are classified based on their __________.
shape and movement capabilities.
Multiple Choice: Which type of synovial joint allows for rotation around a single axis? A) Hinge B) Pivot C) Saddle D) Plane
B) Pivot
What is a meniscus in the context of synovial joints?
A crescent-shaped cartilage that provides cushioning and stability in some joints.
True or False: Synovial joints can only move in one direction.
False
Short Answer: Describe one way that synovial fluid contributes to joint health.
It nourishes the cartilage and helps to maintain joint lubrication.
What is the significance of the articular cartilage’s smooth surface?
It minimizes friction during joint movement.
Fill in the blank: The __________ is the outer layer of the joint capsule.
fibrous capsule.
Multiple Choice: Which of the following joints is an example of a hinge joint? A) Knee B) Shoulder C) Wrist D) Ankle
A) Knee
What type of movement does a saddle joint allow?
Biaxial movement, allowing flexion, extension, abduction, and adduction.
True or False: The range of motion of synovial joints is limited by the surrounding muscles and ligaments.
True
Short Answer: What type of synovial joint is found in the shoulder?
Ball-and-socket joint.
What is the function of bursae in synovial joints?
To reduce friction between moving structures in the joint.
Fill in the blank: The __________ joint is an example of a plane joint.
carpometacarpal joint of the thumb.
Multiple Choice: Which synovial joint type is primarily involved in flexion and extension? A) Ball-and-socket B) Hinge C) Pivot D) Saddle
B) Hinge
Short Answer: Name one common injury associated with synovial joints.
Sprains or dislocations.
