#1
Which type of joint allows movement in all directions?
Ball-and-socket joint
ExplanationAllows movement in all directions due to its spherical head fitting into a cup-like socket.
#2
Which type of movement occurs when you bend your elbow?
Flexion
ExplanationMovement that decreases the angle between two body parts.
#3
Which of the following bones is part of the axial skeleton?
Sternum
ExplanationCentral bone of the chest, part of the axial skeleton which includes the skull, vertebral column, and ribcage.
#4
What type of joint is the elbow joint?
Hinge joint
ExplanationAllows movement in one plane only, like the hinge of a door, enabling flexion and extension.
#5
Which type of joint is found between the carpal bones of the wrist?
Gliding joint
ExplanationAllows sliding or gliding movements between bones, facilitating movement in multiple directions.
#6
What is the function of synovial fluid in a joint?
To reduce friction between joint surfaces
ExplanationLubricates joint surfaces, reducing friction and allowing smooth movement.
#7
Which of the following joints allows rotation around a central axis?
Pivot joint
ExplanationAllows rotation around a central axis, like the joint in the neck that allows turning the head.
#8
What movement occurs when you move your arm away from the midline of your body?
Abduction
ExplanationMovement away from the midline or median plane of the body.
#9
Which joint is responsible for the movement of nodding the head up and down?
Atlanto-occipital joint
ExplanationConnection between the base of the skull and the first cervical vertebra, allowing nodding movement.
#10
Which ligament connects the femur to the tibia and helps stabilize the knee joint?
Anterior cruciate ligament (ACL)
ExplanationProvides stability to the knee joint by preventing excessive forward movement of the tibia relative to the femur.
#11
Which ligament stabilizes the knee joint on the medial side?
Medial collateral ligament (MCL)
ExplanationProvides stability to the knee joint by preventing excessive movement sideways.
#12
Which of the following is not a function of the skeletal system?
Initiation of muscle contractions
ExplanationWhile bones provide attachment points for muscles, the initiation of muscle contractions is controlled by the nervous system.
#13
Which type of cartilage covers the ends of bones in synovial joints?
Articular cartilage
ExplanationCovers the surface of bones within synovial joints, providing a smooth surface for movement and cushioning.
#14
Which type of cartilage is found in the intervertebral discs and provides cushioning between vertebrae?
Fibrocartilage
ExplanationStrong and flexible cartilage found in intervertebral discs, providing cushioning and absorbing shock between vertebrae.