| A | B |
|---|
| Superior palpebrae | The upper eye lid which is wider andnearly three times as large as lower lid; when naturally closed, it covers the cornea and the lower margin is what forms the line of eye closure. |
| Inferior palpebrae | The lower lid which is narrower and thinner than the upper lid; it follows the curve of the eyeball and inclines from the line of closure. |
| Line of eye closure | The line that forms between the two eyelids when they are closed, and which marks their place of contact with each other (the two lids abut and do not overlap); occurs in the lower third of the eye scoket as a dipping curve. The upper lid covers two-thirds and the lower lid, one third. |
| Nasal orbital fossa | A triangular concave depression superior to the medial portion of the superior palpebrae. |
| Superior orbital area | Region between the supercilium and the superior palpebrae that is composed of muscle and fat; it is deepest near the root of the nose. |
| Inner canthus | Small elevation extending medially and obliquely from the medial corner of the superior palpebrae; there are no eyelashes here. |
| Cilia | Eyelashes-the fringer of hair edging the eyelids which are irregular in length and spacing with cilia at the end of the line of eye closure; the cilia of the upper lid turn up and on the lower lid turn down. |
| Supercilium | Eyebrows- hair that grows up and outward and is unequal in length; it is denser near the glabella. |
| Superior palpebral sulcus | The groove or furrowof the superior border of the superior palpebrae-an acquired facial marking. |
| Inferior palpebral sulcus | The groove or furrow of the inferior border of the inferior border of the inferior palpebral-an acquired facial marking. |
| Optic facial sulci | The furrows radiating laterally from the lateral corner of the eye- an acquired facial marking also known as crow's feet. |
| Oblique palpebral sulcus | The shallow, dark, curving groove below the medial corner of the eyelid; it is a natural facial marking that moves inferior and laterally. |
| Supraorbital margin | The superior rim of the eye socket located on the frontal bone. |
