Throat clearing, like coughs, is often a hangover from a viral respiratory infection such as a cold, and can persist after an infection for more than eight weeks. However, you donât mention having been ill, so the next thing to consider is your history of asthma.
And, vice versa. When the triceps contracts, pulling the lower arm back down to its starting position, the biceps relaxes. Most, but not all, of the skeletal muscles in your body work in these agonist-antagonist pairs. If the agonist flexes a muscle, then its antagonist extends the muscle.
Best Answer: The extrinsic muscles control the movement of the eyes.The extrinsic muscles are controlled by the somatic nervous system(voluntary) The intrinsic muscles control the lens and pupil. The intrinsic eye muscles, (including the iris sphincter, radial pupilodilator muscles and the ciliarymuscle), are under the control of the autonomic nervous system(involuntary) Source(s):