Joint Classifications
What is another name for a joint?
Articulation.
What type of fibrous joint connects most bones of the skull?
Suture.
What smooth tissue covers the ends of bones in a synovial joint?
Articular cartilage.
Which type of synovial joint is found at the elbow?
Hinge joint.
What movement decreases the angle of a joint?
Flexion.
Name the three structural classifications of joints.
Fibrous, cartilaginous, and synovial.
What type of joint anchors a tooth in its socket?
Gomphosis.
Which membrane produces synovial fluid?
Synovial membrane.
Which type of joint allows rotation between the atlas (C1) and axis (C2)?
Pivot joint.
What movement takes a limb away from the body's midline?
Abduction.
Name the three functional classifications of joints.
Synarthrosis, amphiarthrosis, and diarthrosis.
What type of fibrous joint connects two bones with a ligament and permits some movement?
Syndesmosis.
Name two functions of synovial fluid.
It lubricates and cushions the joint and nourishes articular cartilage.
What type of joint is found at the base of the thumb?
Saddle joint.
What movement points the toes downward, away from the tibia?
Plantarflexion.
Which functional classification describes a slightly movable joint?
Amphiarthrosis.
What type of cartilaginous joint connects bones using hyaline cartilage?
Synchondrosis.
What fluid-filled sac helps prevent friction around a joint?
Bursa.
Which type of synovial joint allows gliding between the tarsal bones?
Plane joint.
What is the difference between supination and pronation of the forearm?
Supination turns the palm upward, while pronation turns the palm downward.
An intervertebral disc joint allows limited movement and is made of fibrocartilage. What are its structural and functional classifications?
Structurally, it is a cartilaginous symphysis; functionally, it is an amphiarthrosis.
What is the difference between a synchondrosis and a symphysis?
A synchondrosis uses hyaline cartilage, while a symphysis uses fibrocartilage.
What is the difference between a tendon and a ligament?
A tendon connects muscle to bone, while a ligament connects bone to bone.
Which two joints are ball-and-socket joints and allow movement in multiple directions?
Hip and shoulder joints.
What is the difference between inversion and eversion of the foot?
Inversion turns the sole inward toward the midline, while eversion turns it outward away from the midline.