Question

which joint allows for the most movement?
gliding
saddle
ball and socket
trochoid
question 5
a condyloid joint is an example of a(n) _____ joint.
uniaxial
biaxial
multiaxial
immovable
question 6
after it is released from the sarcoplasmic reticulum, the calcium combines with which protein?
troponin
actin
myosin
tropomyosin

Explanation:

• For the first question, ball - and - socket joints allow the most movement as they can move in multiple axes (flexion, extension, abduction, adduction, rotation). Gliding joints have limited sliding movement, saddle joints have movement in two planes, and trochoid joints mainly have rotational movement.
• For the second question, a condyloid joint is biaxial, allowing movement in two planes (flexion - extension and abduction - adduction).
• For the third question, when calcium is released from the sarcoplasmic reticulum, it combines with troponin, which causes a conformational change that exposes binding sites on actin for myosin.

Answer:

• Which joint allows for the most movement? C. Ball and socket
• A condyloid joint is an example of a(n) ____ joint. B. biaxial
• After it is released from the sarcoplasmic reticulum, the calcium combines with which protein? A. Troponin