Caruncula Inferior Lacrimal Duct Inferior Lacrimal Gland 10 Iris 3 9 Lacrimal Punctum 8 Lacrimal Sac Nasolacrimal Duct Plica semilunaris Pupil Superior Lacrimal Duct Superior Lacrimal Gland 5- 2.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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The image is an anatomical diagram of the eye, illustrating various parts of the lacrimal system and related structures. Each component is numbered and labeled accordingly on the right side. Here's the detailed description:

1. **Caruncula** - A small, fleshy mound located in the corner of the eye (medial canthus) near the nose.
2. **Inferior Lacrimal Duct** - A channel responsible for draining tears from the eye surface into the lacrimal sac.
3. **Inferior Lacrimal Gland** - Part of the tear production system, situated beneath the upper eyelid.
4. **Iris** - The colored part of the eye surrounding the pupil, controlling the amount of light that enters.
5. **Lacrimal Punctum** - Small openings on the edge of the eyelids through which tears drain into the lacrimal duct system.
6. **Lacrimal Sac** - A structure that collects tears from the lacrimal ducts and channels them into the nasolacrimal duct.
7. **Nasolacrimal Duct** - The drainage system leading from the lacrimal sac into the nasal cavity.
8. **Plica Semilunaris** - A small fold of conjunctiva at the inner corner of the eye.
9. **Pupil** - The central opening in the iris that allows light to enter the retina.
10. **Superior Lacrimal Duct** - A similar channel as the inferior duct, located above the eye.
11. **Superior Lacrimal Gland** - The major tear-producing gland located above the outer corner of the eye.

This diagram helps in understanding the functional anatomy related to tear production and drainage, crucial for maintaining eye health and protecting the ocular surface.
Transcribed Image Text:The image is an anatomical diagram of the eye, illustrating various parts of the lacrimal system and related structures. Each component is numbered and labeled accordingly on the right side. Here's the detailed description: 1. **Caruncula** - A small, fleshy mound located in the corner of the eye (medial canthus) near the nose. 2. **Inferior Lacrimal Duct** - A channel responsible for draining tears from the eye surface into the lacrimal sac. 3. **Inferior Lacrimal Gland** - Part of the tear production system, situated beneath the upper eyelid. 4. **Iris** - The colored part of the eye surrounding the pupil, controlling the amount of light that enters. 5. **Lacrimal Punctum** - Small openings on the edge of the eyelids through which tears drain into the lacrimal duct system. 6. **Lacrimal Sac** - A structure that collects tears from the lacrimal ducts and channels them into the nasolacrimal duct. 7. **Nasolacrimal Duct** - The drainage system leading from the lacrimal sac into the nasal cavity. 8. **Plica Semilunaris** - A small fold of conjunctiva at the inner corner of the eye. 9. **Pupil** - The central opening in the iris that allows light to enter the retina. 10. **Superior Lacrimal Duct** - A similar channel as the inferior duct, located above the eye. 11. **Superior Lacrimal Gland** - The major tear-producing gland located above the outer corner of the eye. This diagram helps in understanding the functional anatomy related to tear production and drainage, crucial for maintaining eye health and protecting the ocular surface.
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