spasm

"Muscle consists largely of actin and myosin filaments."

"The math test was excruciating; I struggled with every problem. "

"His creativity is unsurpassed by his fellow students in the art class."

"Seeing her favorite teacher made her feel a rush of positive emotion. "

"The temporary at the bakery was only there for the summer. "

"I couldn't sleep last night because of a terrible toothache. "

"The student's tears were involuntary; she couldn't help crying when she saw the sad movie. "

"The violent assaulted the student in the school hallway. "

"The fog eventually lifted, leaving the streets clear."

"Pit row was abuzz with activity."

"The search warrant permitted the seizure of evidence."

"The muscle contraction during exercise resulted in a temporary reduction in the size of the arm. "