The A to Z of Anatomical Histological and Medical terms
Perichondrium (pear’-ih-KOHN-dree-uhm) a layer of dense CT that
A
envelopes cartilage.
B
perichondrium: Gk. peri = around, and chondros = cartilage;
hence, the membrane covering cartilage. C
pericranium: Gk. peri = around, and kranion = skull; hence, the
external periosteum of the skull.
D
perilymph: Gk. peri = around, and lympha - Lt. = clear water; the
E
fluid in the bony labyrinth surrounding the membranous labyrinth
(and continuous with the CSF).
F
Perimysium (pear’-ih-MI-see-uhm) an extension of the epimysium of
G
muscle that invaginates inward to divide a muscle into bundles.
perineum: Gk. the caudal aspect of the trunk b/n the thighs, or,
H
the region of the trunk below the pelvis
Perineurium (pear’-ih-NYEW-ree-uhm) an extension of the
I
epineurium of a nerve that invaginates inward to wrap around bundles J
of nerve fibers.
pelvic diaphragm; adj.- perineal.
K
periodontal: adj.Gk. peri = around, and odont = tooth.
L
Periodontal ligament (pear’-ee-o-DON-tal LIG-ah-ment) a CT
membrane that surrounds a tooth and connects it to the bone of the
M
jaw.
N
Periosteum (pear’-ee-OS-tee-uhm) the CT covering around a bone
that is important in bone growth, nutrition, and repair.
O
periosteum: Gk. peri = around, and osteon = bone; the
membrane around a bone.
P
Peripheral (per-IH-fehr-ahl) nervous system (PNS) The division of Q
the NS consisting of nerves and ganglia located between the CNS and
the body surfaces.
R
peripheral: adj.Gk. peri = around and phero = carry; away from
S
the centre (c.f. periphery).
peristalsis: Gk. peri = around, and stellein - to constrict; a circular
T
constriction passing as a wave along a muscular tube; adj.-
U
peristaltic.
Peritoneal (pear’-ih-to-NEE-awl) cavity the space between the
V
parietal peritoneum and the visceral peritoneum. It contains a small
amount of fluid.
W
Peritoneum (per’-ih-to-NEE-uhm) the extensive serous membrane X
associated with the abdominopelvic cavity.
peritoneum: Gk. periteino = to stretch around; the membrane
Y
stretched around the internal surface of the walls and the external
Z
aspect of some of the contents of the abdomen; adj.- peritoneal.
© A. L. Neill 128
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