| Term |
Original Meaning |
Medical Application |
rectum L.
(neuter gender) |
straight ________ |
a straight structure, used with
the neuter gender, refers to "intestinum rectum" or the
"straight intestine", meaning the distal straight portion of the
large intestine, whereby the word "intestinum" is only implied,
the neuter ending (-um) is sufficient to differentiate it from "rectus". |
| trapezius L/Gr. |
trapezoid, an irregular
four-sided figure
|
a large back muscle of trapezoid
shape, |
| trigone Gr. |
triangle
|
a triangular configuration or
area of such shape; f.ex.: the trigone of the urinary bladder is an area
of the bladder shaped like an upside-down triangle at the base of the
bladder. . |
| rhomboideus L/G |
shaped like a rhombus
|
one of the back muscles of
rhomboid shape |
| sinus L |
a curve
or hollow
|
a curved cavity; such as
1. a cavity in the skull, (the paranasal sinuses);
2. a curved widening of a vessel (f.ex. carotid sinus = a curved widened
area in the carotid artery in the neck).
3. a hollow, as in the term "sino-atrial node" (abbr. SA node) =
a tiny node or knot of special fibers located in a minute hollow of the
right atrium.
4. The term "sinus" applies also still to other curved hollow
spaces or widened vessels. |