Question

what type of synovial joint is the elbow joint?
ball and socket
hinge
condylar
saddle
question 11
what is the name of the joint found between the pelvis and sacrum?
sacro - iliac joint
sacro - coccygeal joint
atlanto - occipital joint
public symphysis

Explanation:

• For the elbow joint question:
• A ball - and - socket joint (e.g., hip joint) allows for a wide range of multi - directional movements.
• A hinge joint (like the elbow) allows movement in mainly one plane (flexion and extension).
• A condylar joint (e.g., metacarpophalangeal joint) allows for flexion, extension, abduction, and adduction.
• A saddle joint (e.g., carpometacarpal joint of the thumb) has a unique shape that allows for a variety of movements but not the same as a hinge.
• For the pelvis - sacrum joint question:
• The sacro - iliac joint is between the sacrum and the ilium (part of the pelvis).
• The sacro - coccygeal joint is between the sacrum and coccyx.
• The atlanto - occipital joint is between the atlas (C1 vertebra) and the occipital bone.
• The pubic symphysis is between the two pubic bones.

Answer:

• For the elbow joint: B. Hinge
• For the joint between the pelvis and sacrum: A. Sacro - iliac joint