"Side view of skull of Cape Jumping Hare. Pmx, premaxilla; Mx, maxilla; Ma, malar; Fr, frontal; L, lachrymal; Pa, parietal; Na, nasal; Sq, squamosal; Ty, tympanic; ExO, exoccipital; AS, alisphenoid; OS, orbito-sphenoid; Per, mastoid bulla." —The Encyclopedia Britannica, 1903

Cape Jumping Hare

"Side view of skull of Cape Jumping Hare. Pmx, premaxilla; Mx, maxilla; Ma, malar; Fr, frontal; L, lachrymal;…

"The skull of a cod. b, branchiostegal rays born on c.h., the ceratohyal bone; d, dentary portion of the mandible; f, frontal; h.m., hyomandibular; i.o., interoperculum; l, lachrymal; m, maxilla; n, nasal; o, operculum; p.m., premaxilla; p.o., preoperculum; p.s., parasphenoid; q, quadrate; s.o., sub-operculum; s.oc., supra-occipital." — Galloway

Cod Skull

"The skull of a cod. b, branchiostegal rays born on c.h., the ceratohyal bone; d, dentary portion of…

External ear and muscles.

External Ear and Muscles

External ear and muscles.

Front view of left eye, with eyelid partly removed to show lachrymal gland (tear-producing gland), and lachrymal duct (tear duct).

Eye and Lachrymal Gland

Front view of left eye, with eyelid partly removed to show lachrymal gland (tear-producing gland), and…

The lachrymal apparatus of the right eye.

Lachrymal Apparatus of the Eye

The lachrymal apparatus of the right eye.

"The Relative Position of the Lachrymal Apparatus, the Eyeball, and the Eyelids. <I>A</em>, lachrymal canals, with the minute orifices represented as two black dots to the right; <em>B</em>, tendon attached to a muscle which surrounds the circumference of the orbit and eyelids; under <em>B</em> is seen the lachrymal sac. The minute openings of the Meibomian glands are seen on the free margins of the eyelids. Below <em>A</em> is seen a small conical elevation, with black dots (the lachrymal papilla, or caruncle)." &mdash; Blaisedell, 1904

Eyeball

"The Relative Position of the Lachrymal Apparatus, the Eyeball, and the Eyelids. A, lachrymal canals,…

<em>A</em> and <em>C</em>, lachrymal canals; <em>B</em>, lachrymal sac; <em>D</em>, small muscle which serves to compress the lachrymal sac; <em>F</em>, glands upon the inner surface of the eyelids, with ducts opening upon the free margins of the eyelids; <em>H</em>, great openings, or antrum, of the upper jawbone. The oil glands of the nose are plainly shown." &mdash; Blaisedell, 1904

Eyelids and lachrymal apparatus

A and C, lachrymal canals; B, lachrymal sac; D, small muscle which…

The eyelids viewed from before; a,a, the lachrymal canals; b, the lachrymal sack. The lachrymal sac is a bag of an oval shape, fixed to the end of the double canal, and lies in a depression of the nasal bones. It terminates in the tube called the duct, which passes through a hole made for it, in the bones of the nose, and opens into the nostril.

Eyelids, Viewed from the Front

The eyelids viewed from before; a,a, the lachrymal canals; b, the lachrymal sack. The lachrymal sac…

The head is the part of the body that contains the brain and the organs of the special senses.

Head

The head is the part of the body that contains the brain and the organs of the special senses.

The lachrymal apparatus, used in tear production.

Lachrymal Apparatus

The lachrymal apparatus, used in tear production.

The lachrymal apparatus (the skin of the lids has been removed), which functions in tear production.

Lachrymal Apparatus

The lachrymal apparatus (the skin of the lids has been removed), which functions in tear production.

Lachrymal apparatus, which produces tears (eyelid skin has been removed).

Lachrymal Apparatus

Lachrymal apparatus, which produces tears (eyelid skin has been removed).

The inner surface of the right lachrymal bone.

Lachrymal Bone

The inner surface of the right lachrymal bone.

The orbital surface of the right lachrymal bone.

Lachrymal Bone

The orbital surface of the right lachrymal bone.

Right lachrymal bone, inner aspect. Upper part completes anterior ethmoidal cells, lower looks into middle nasal meatus.

Inner Aspect of Lachrymal Bone

Right lachrymal bone, inner aspect. Upper part completes anterior ethmoidal cells, lower looks into…

Lachrymal Bone. The lachrymal are the smallest and most fragile bones fo the face. They are situated at the front part of the inner wall of the orbit.

Human Lachrymal Facial Bone

Lachrymal Bone. The lachrymal are the smallest and most fragile bones fo the face. They are situated…

View of the lachrymal gland and nasal duct. Labels: 1, The lachrymal gland. 2, Ducts leading from the lachrymal gland to the upper eyelid. 3, The "tear points". 4, The nasal sac. 5, The termination of the nasal duct.

View of the Lachrymal Gland and Nasal Duct

View of the lachrymal gland and nasal duct. Labels: 1, The lachrymal gland. 2, Ducts leading from the…

The lacrimal (lachrymal) gland is an oval gland in the orbital portion of the frontal bone. Its tear ducts open by a row of orifices on the upper and outer portion of the palpebral conjunctiva. It's secretion, the tears, lubricates the surface of the eyeball.

The Lacrimal Gland

The lacrimal (lachrymal) gland is an oval gland in the orbital portion of the frontal bone. Its tear…

The base of the skull. The lower jaw has been removed. At the lower part of the figure is the hard palate forming the roof of the mouth and surrounded by the upper set of teeth

Base of the Skull

The base of the skull. The lower jaw has been removed. At the lower part of the figure is the hard palate…

A side view of the skull. Labels: O, occipital bone; T, temporal; Pr, parietal; F, frontal; S, sphenoid; Z, malar; Mx, maxilla; N, nasal; E, ethmoid; L, lachrymal; Md, inferior maxilla.

Side View of the Skull

A side view of the skull. Labels: O, occipital bone; T, temporal; Pr, parietal; F, frontal; S, sphenoid;…