The use of the superior recti muscles has also a definite effect upon the disposition.
They are known as the plicae recti or valves of Houston.
On each side of it the broad recti muscles can be seen in muscular people.
I have also attempted to confine the operation to the shortening of the external rectus without loosening the internal recti and with success, but not frequently enough to be able to deliver a certain opinion upon it.
Simple tenotomy of both internal rectidoes not, as a rule, suffice for deviations of more than 7 mm.
However, the innervation for convergence may be lost, without the internal rectilosing in elastic tension.
Everything led me to suppose beforehand that simple tenotomy of both internal rectiwould perfectly suffice to remove the squint, yet it was of no use, but had to be supplemented by shortening both external recti.
Moreover, this slight aid given by tenotomy has its ground not solely in the condition of the opposing recti muscles.
I have frequently, in periodic squint, performed double tenotomy of the internal recti with the slightest possible loosening of the conjunctiva.
Double tenotomy of the internal recti effected a normal position, and at the end of December, 1874, the continuance of the same could be proved as well as binocular fusion with prisms.
Two days after tenotomy of the internal recti on both sides, the facultative divergence amounted to 7 deg.
A purse-string suture of strong catgut is then inserted into the cut margin of Tenon’s capsule, taking care to include in the sutures the cut ends of the tendons of the recti muscles.
The superior and inferior recti are treated in a similar manner.
Another somewhat hypothetical objection is that during sleep the eyelids are rolled upwards by the superior recti so that the lids are slightly open, but this occurs in almost all successful ptosis operations.
The tendons of the recti muscles are inserted into the globe at the following distances from the corneo-sclerotic junction: internal, 5 mm.
Proceed now to orbit, and, without any dissection beyond the removal of skin, make out recti and oblique muscles of eyeball, and the optic, third and fourth nerves.
This muscle-pair is, as it should be, the pair of dorso-ventral muscles belonging to the segment immediately following on the group of segments represented by the recti muscles, i.
These recti muscles belong clearly to the segments posterior to the first prosomatic or cheliceral segment, and represent certainly three, probably four, of these segments, i.
In order to avoid repetition of the long name given to this muscle group (62) by Miss Beck, because of their position, and for other reasons which will appear in the sequel, I will call this group of muscles the group of recti muscles.
B), and, as in the case of the formation of the oculomotor group, derived from the recti group of the scorpion, would form the commencement of the superior oblique muscle in Thyestes and Tremataspis.
In each act of seeing, it becomes the task of the superior and inferior recti muscles to keep the eyes in the same plane, and of the external and internal recti muscles to give just the right amount of convergence.
The other two, the superior and inferior oblique muscles, aid in certain movements of the recti muscles and, in addition, serve to rotate the eyes slightly.
It is inserted into the linea ileo-pectinea, where the tendon of the external oblique has no connection, and is strengthened by fibres from the internal oblique, transverse, and recti muscles.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "recti" in a variety of sentences. We hope that you will now be able to make sentences using this word.
