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A top view of the human brain.

Brain

A top view of the human brain.

Fissures and gyres of the lateral surface of the left hemicerebrum of the brain.

Brain

Fissures and gyres of the lateral surface of the left hemicerebrum of the brain.

Fissures and gyres of the mesal surface of the left hemicerebrum of the brain.

Brain

Fissures and gyres of the mesal surface of the left hemicerebrum of the brain.

Fissures and gyres of the basal surface of the cerebrum portion of the brain.

Brain

Fissures and gyres of the basal surface of the cerebrum portion of the brain.

"Profile and vertex views of cerebrum. Dr, the frontal lobe; Par, parietal; Oc, occipital; Ts, temporo-sphenoidal lobe; SS, Sylvian fissure; RR, fissure of Rolando; PO, parieto-occipital fissure; IP, intra-pariental fissure; PP, Parallel fissure; SF and IF, supero- and infero-frontal fissures; 1, inferior, 2 middle, and 3, superior frontal convolutions; 4, ascending frontal convolution; 5, ascending parietal, 5', postero-parietal, and 6, angular convolutions; A, supra-marginal, or convolution of the parietal eminence; 7, superior, 8, middle, and 9, inferior temporo-sphenoidal convolutions; 10, superior, 11, middle, and 12, inferior occipital convolutions." — Encyclopedia Britanica, 1893

Brain

"Profile and vertex views of cerebrum. Dr, the frontal lobe; Par, parietal; Oc, occipital; Ts, temporo-sphenoidal…

"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;…

"Brain of chimpanzee. Ol, olfactory lobe; A, B, C, frontal, occipital, and temporal lobes; C1, a portion of temporal lobe; Sy, Sylvian fissure; In, insula or island of Reil; SOr, supra-orbital gyrus; SF, MF, IF, superior, middle, and inferior frontal gyri; R, fissure of Rolando; PPl, posteroparietal lobule; OPf, occipitotemporal sulcus; An, angular gyrus; 2, 3, 4, annectent gyri; AT, MT, PT, the anterior, middle, and posterior temporal gyri; SOc, MOc, IOc, the superior, middle, and inferior occipital gyri." -Whitney, 1911

Chimpanzee Brain

"Brain of chimpanzee. Ol, olfactory lobe; A, B, C, frontal, occipital, and temporal lobes; C1, a portion…

"Skeleton and Outline of African Elephant (Elephas or Loxodon africanus). fr, frontal; ma, mandible; ma', malar; fi, "finger" at end of trunk; C, cervical vertebrae; D, dorsal vertebrae; D, dorsal vertebrae; pe, pelvis; sc, scapula; st, sternum; hu, humerus; ul, ulna; ra, radius; mc, metacarpus; fe, femur; pat, patella; tib, tibia; fib, fibula; met, metatarsus." -Whitney, 1911

African Elephant Skeleton

"Skeleton and Outline of African Elephant (Elephas or Loxodon africanus). fr, frontal; ma, mandible;…

A bone in the human skull that consists of two portions, a vertical portion and a horizontal portion. This bone does a part in protecting your brain from harm.

Frontal Bone

A bone in the human skull that consists of two portions, a vertical portion and a horizontal portion.…

A bone in the human skull that consists of two portions, a vertical portion and a horizontal portion. This bone does a part in protecting your brain from harm.

Frontal Bone

A bone in the human skull that consists of two portions, a vertical portion and a horizontal portion.…

Frontal bone of the human skull, outer surface. The frontal bone forms the forehead, roof of the orbital cavities, and the nasal cavity. Labels: 1, frontal eminence; 7, roof of orbital cavitiy; 10, orbital arch.

Frontal Bone of the Human Skull

Frontal bone of the human skull, outer surface. The frontal bone forms the forehead, roof of the orbital…

"Side view of skull of horse, with the bone removed so as to expose the whole of the teeth. PMx, premaxilla; Mx, maxilla; Na, nasal bone; Ma, malar bone; L, lacrymal bone; Fr, frontal bone; Sq, squamosal bone; Pa, parietal bone; oc, occipital condyle; pp, paroccipital process; i, the three incisor teeth; c, the canine tooth; pm1, the situation of the rudimentary first premolar, which has been lost in the lower, but is present in the upper jaw; pm2, pm3, and pm4, the three fully-developed premolar teeth; m, the three true molar teeth." — Encyclopedia Britannica, 1893

Horse Skull

"Side view of skull of horse, with the bone removed so as to expose the whole of the teeth. PMx, premaxilla;…

"Brain of pig. Ol, olfactory lobe; A, B, C, frontal, occipital, and temporal lobes; C1, a portion of temporal lobe; Sy, Sylvian fissure; In, insula or island of Reil." -Whitney, 1911

Pig Brain

"Brain of pig. Ol, olfactory lobe; A, B, C, frontal, occipital, and temporal lobes; C1, a portion of…

"Upper aspect of the primordial cranium, with the membrane-bones removed. An, angular; ao, anteorbital; Ar, articulary; B, basal; D, dentary; E, ethmoid; F, frontal; Ma, mastoid; Mp, metapterygold; Mx, maxillary; N, nasal; O, operculum; Oc, occipital; Pa, parietal; Pl, palatine; Pmx, premaxillary; po, postorbital; Prf, prefrontal; Pt, post-temporals; Ptf, postfrontal; Ptr, pterygold; Q, quadrate; S, suspensorium; So, suboperculum; Sp, sphenold; Spl, splenial; St, supratemporals; T, tympanic lamina; Tu, turbinal; v, vomer; x x, small ossicles; x' x', spiraculars." — Encyclopedia Britannica, 1893

Polypterus Skull

"Upper aspect of the primordial cranium, with the membrane-bones removed. An, angular; ao, anteorbital;…

"Lower aspect of the primordial cranium, with the membrane-bones removed. An, angular; ao, anteorbital; Ar, articulary; B, basal; D, dentary; E, ethmoid; F, frontal; Ma, mastoid; Mp, metapterygold; Mx, maxillary; N, nasal; O, operculum; Oc, occipital; Pa, parietal; Pl, palatine; Pmx, premaxillary; po, postorbital; Prf, prefrontal; Pt, post-temporals; Ptf, postfrontal; Ptr, pterygold; Q, quadrate; S, suspensorium; So, suboperculum; Sp, sphenold; Spl, splenial; St, supratemporals; T, tympanic lamina; Tu, turbinal; v, vomer; x x, small ossicles; x' x', spiraculars." — Encyclopedia Britannica, 1893

Polypterus Skull

"Lower aspect of the primordial cranium, with the membrane-bones removed. An, angular; ao, anteorbital;…

"Side view, with the membrane-bones. An, angular; ao, anteorbital; Ar, articulary; B, basal; D, dentary; E, ethmoid; F, frontal; Ma, mastoid; Mp, metapterygold; Mx, maxillary; N, nasal; O, operculum; Oc, occipital; Pa, parietal; Pl, palatine; Pmx, premaxillary; po, postorbital; Prf, prefrontal; Pt, post-temporals; Ptf, postfrontal; Ptr, pterygold; Q, quadrate; S, suspensorium; So, suboperculum; Sp, sphenold; Spl, splenial; St, supratemporals; T, tympanic lamina; Tu, turbinal; v, vomer; x x, small ossicles; x' x', spiraculars." — Encyclopedia Britannica, 1893

Polypterus Skull

"Side view, with the membrane-bones. An, angular; ao, anteorbital; Ar, articulary; B, basal; D, dentary;…

"Lower aspect of the skull, part of the bones being removed on the side. An, angular; ao, anteorbital; Ar, articulary; B, basal; D, dentary; E, ethmoid; F, frontal; Ma, mastoid; Mp, metapterygold; Mx, maxillary; N, nasal; O, operculum; Oc, occipital; Pa, parietal; Pl, palatine; Pmx, premaxillary; po, postorbital; Prf, prefrontal; Pt, post-temporals; Ptf, postfrontal; Ptr, pterygold; Q, quadrate; S, suspensorium; So, suboperculum; Sp, sphenold; Spl, splenial; St, supratemporals; T, tympanic lamina; Tu, turbinal; v, vomer; x x, small ossicles; x' x', spiraculars." — Encyclopedia Britannica, 1893

Polypterus Skull

"Lower aspect of the skull, part of the bones being removed on the side. An, angular; ao, anteorbital;…

"Brain of rabbit. Ol, olfactory lobe; A, B, C, frontal, occipital, and temporal lobes; Sy, Sylvian fissure." -Whitney, 1911

Rabbit Brain

"Brain of rabbit. Ol, olfactory lobe; A, B, C, frontal, occipital, and temporal lobes; Sy, Sylvian fissure."…

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, frontal bone; B, parietal bone; C, temporal bone; D, sphenoid bone; E, malar bone; F, upper jawbone; G, lower jawbone" — Blaisedell, 1904

Human skull

"A, frontal bone; B, parietal bone; C, temporal bone; D, sphenoid bone; E, malar bone; F, upper jawbone;…

The skull. Labels: a, nasal bone; b, superior maxillary; c, inferior maxillary; d, occipital; e, temporal; f, parietal; g, frontal bone.

Human Skull

The skull. Labels: a, nasal bone; b, superior maxillary; c, inferior maxillary; d, occipital; e, temporal;…

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;…