The gorilla can stand upon his feet alone, and walk a few steps in that position; but his motion is awkward, because his knees turn outward, forming an angle of 30 or 35 degrees on either side of the mesial plain.
The mesial wall of the cerebral hemisphere is divided into a large dorsal hippocampal area (fig.
Some of them, like the choroidal on the mesial surface, are developed very early, while the vesicle is little more than epithelial, and contain between their walls an inpushing of mesoderm to form the choroid plexus.
More externally the mesial fillet is seen, while dorsal to the cerebellar peduncle is the posterior longitudinal bundle.
The pons possesses a median raphe continuous with that of the medulla oblongata, and formed like it by a decussation of fibres in the mesial plane.
It consists of two layers of grey matter, between which is a narrow vertical mesial space, the fifth ventricle (fig.
Mesial and Lateral Views of the Brain of Ornithorynchus.
A well-marked rhinal fissure separates the pyriform lobe from the neopallium, while, on the mesial surface, the hippocampal fissure separates the neopallium from the hippocampal area.
Each posterior pillar curves downward and outward into the descending cornu of the ventricle, and, under the name of taenia hippocampi, forms the mesial free border of the hippocampus major (fig.
On the mesial surface of the hemisphere, as seen when the brain is longitudinally bisected and the cerebellum and medulla removed by cutting through the crus cerebri (see fig.
A vertical longitudinal mesial band, named, from its sickle shape, falx cerebri, dips between the two hemispheres of the cerebrum.
Connexions can be traced to the optic tract, the higher visual centre on the mesial surface of the occipital lobe, the deep origin of the third or oculo-motor nerve as well as to the mesial and lateral fillet.
The Gyri and Sulci on theMesial Aspect of the Cerebral Hemisphere, r, Fissure of Rolando.
Mesial and Lateral Views of the Brain of the Tasmanian Devil (Sarcophilus).
On the mesial side of this corpus dentatum lie three smaller nuclei.
The base is more or less gray, and there is a broad, regularly curved mesial band of dark gray, which in some specimens is very distinct, in others more or less obsolete.
An aberration in which the mesial dark transverse band on the secondaries has disappeared was named pseudodorippus by Dr.
The upper side of both wings is dark brown from the base to the mesial band of spots, with the exception of the outer end of the cell.
The primaries are produced and relatively narrower than in the preceding species, fulvous on the upper side, with the black markings distinct, the mesial band of the secondaries confluent.
The male on the upper side is reddish-fulvous, with rather heavy black markings, the mesial band of spots being confluent.
The female has the wings more or less mottled with yellowish outside of the mesial band.
Defn: Away from the mesial plane of the body; lateral.
Defn: A division along themesial plane; also, one of the parts so divided.
Defn: The mesial plane dividing the body of an animal into similar right and left halves.
Defn: Toward the side; away from the mesial plane; -- opposed to mesiad.
In the mesial plane; as, a sagittal section of an animal.
Defn: In, near, or toward, themesial plane; mesiad.
The mesial lines are whitish and wide apart; externally they are closer, papiliform, and brown.
The young bird is browner than the adults, with white mesial streaks on the wing-coverts; crown of head dusky black; under surface of body less gray and washed with brown.
The first form is known as upward luxation and is made possible by rupture of the mesial (internal) femeropatellar ligament.
This makes for greater strain upon the mesial or lateral tarsal ligaments whenever the foot bears upon a sloping ground surface, so that one side (inner or outer) is higher or lower than the other.
French veterinarians consider under the title of "courbe," an exostosis situated on the mesial side of the distal end of the tibia.
When, during locomotion, injury is inflicted upon the mesial side of an extremity by the swinging foot of the other member, the condition is termed interfering.
The transverse diameter of this joint is long, thus giving it contacting surfaces that are sufficiently extensive to minimize the strain upon the mesial and lateral ligaments (internal and external lateral common ligaments).
The mesial (internal) arises from the internal condyle of the femur and is attached to a rough area below the margin of the medial (internal) condyle of the tibia.
Sprains of the mesial tarsal ligaments cause lameness somewhat similar to that of spavin.
This term is applied to an affection of the tarsus which is usually characterized by the existence of an exostosis on the mesial and inferior portion of the hock.
It consisted of a flattened cylinder, in some of the specimens exceeding a foot in length by an inch in breadth, and traversed on both the upper and under sides by a mesial groove extending to the extremities.
When highly magnified, a mesial groove might be detected running along each of the hair-like lines.
When the integuments and subcutaneous substance are removed from this place, the dense fascia lata may be seen binding these muscles so closely together as to leave but a very narrow interval between them at the mesial line.
The adipose substance, which is here generally abundant, should now be divided, between the mesial line and the semimembranosus, till the sheath of the vessels be exposed.
Using the anterior border of the sterno-mastoid as a guide, but leaving it gradually above to a little nearer the mesial line, an incision (Plate IV.
The mesialplane dividing the body of an animal into similar right and left halves.
A division along the mesial plane; also, one of the parts so divided.
When viewed from the right side of the heart, the bundle can not be seen, because it is covered by the mesial leaflet of the tricuspid valve, whose line of attachment passes obliquely over the membranous septum.
If a lesion at the base of the mesialsegment of the tricuspid valve damages His' bundle, so that Tawara's node is cut off from the ventricle, then the ventricle may originate its own impulses to contraction.
Firm pressure is then made against the vault of the naso-pharynx, and the curette is carried backwards and downwards in the mesial plane and withdrawn with the main mass of the adenoids caught in the hooks.
The upper limit of the motor area reaches on to the mesial aspect of the paracentral lobule, and the lower limit stops short of the lateral cerebral fissure (fissure of Sylvius) (Fig.
The unguarded curette is then introduced and several strokes are made with it, the instrument being carried on either side of the mesial plane.
In most cases, however, both clefts are complete, and the mesial portion of the lip is entirely separated from the lateral portions.
In still more aggravated cases, the cleft passes farther forward, deviating to one or to both sides in the fissures between the mesial and lateral segments of the os incisivum or between the lateral segments and the maxillæ.
Each segment of the os incisivum carries one of the incisor teeth, and each of the mesial segments may contain in addition an accessory tooth.
A sharp-pointed bistoury is then passed through the upper lip, previously stretched and raised by an assistant, close to the ruins of the former columna, and about an eighth of an inch on one side of the mesial line.
As already mentioned, the fissure is to one side of the mesial line; and its edges, covered by a continuation of the prolabium, are rounded off at their lower part.
Frequently there is only a fissure on one side of the mesial line.
A middle-aged man was brought intoxicated into the Royal Infirmary with a lacerated wound of the scalp, over the upper part of the occipital bone, on the right side of the mesial line.
The opening through which the protrusion had taken place was very small, and situated a good deal to the mesial line of the internal aperture of the canal.
The part to be perforated is immediately behind the prostate and in the mesial line.
A small incision is made through the sac and its investments, either on one side of the tumour, or in the mesial line at its lower aspect.
An incision of about three inches is made in the superior triangular space of the neck, on the left side,—the gullet usually inclining to the left of the mesial line.
This may, though seldom, be combined with division of the soft or of the hard palate; or there may be a fissure on each side of the mesial line, with an intervening flap.
Eleven to thirteen longitudinal rows of sixteen scales on the trunk, and a mesial line of fourteen on the tail; middle nail of fore-foot much larger than the others.
It is very broad in the shorter quills, and is nearer the free end of the quill than its base, whereas in the long slender quills it is reduced to a narrow mesial band.
Taking the number of scales in the longitudinal mesial line from the nose to the tip of the tail in M.
Pallas describes the black of the tail as passing upwards in a mesial line.
