 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| • HOME • ABOUT • CATEGORIES • USE OF TEXT AND IMAGES • NEWSLETTER   
|
orbital muscles
Six muscles that are responsible for eye movement. Four of the orbital muscles move the eye up, down, left, and right. The other two control the twisting motion of the eye when the head is tilted. Defects in these muscles and the nerves that control them may lead to conditions such as nystagmus and amblyopia ("lazy eye").
Related category
• ANATOMY AND PHYSIOLOGYAlso on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History