1. The act of fertilization is under the voluntary control of the egg-laying queen. 2. Some components of limb stiffness are under voluntary control while others are involuntary. 3. The external urethral sphincter is a striated muscle that allows voluntary control over urination. 4. Brain control of exhalation can be broken down into voluntary control and involuntary control. 5. It is skeletal muscle and is therefore under voluntary control . 6. "It's not under voluntary control , it's not under cognitive control. 7. Normally these muscles are under voluntary control , but for some excessive tension can develop. 8. The voluntary control of chromatophores is known as metachrosis. 9. Conversely, central cues are thought to be under voluntary control and therefore use top-down processes. 10. When a bite occurs, the amount of venom injected is under voluntary control by the snake.