The A to Z of Anatomical Histological and Medical terms
scapula: Gk. skapto = I dig, - because of the resemblance to a
A
spade.
scel- leg
B
schiz- split C
Schwann cell a type of neuroglial cell that forms myelin sheaths
around axons of peripheral nerves.
D
Sciatic (SY-at-ic) nerve, largest nerve in the body lies on the ischium
E
and is very visible hence the name- sciatic pain resulting from
damage to the sciatic nerve or parts of it
F
sciatic: adj.Gk. ischion = hip-joint. Ischiadikos meant pertaining to
G
the ischium or hip - later changed to ischium. (the ischium
earns its name because it forms > 2/5 of the acetabulum,
H
whereas the ilium contributes < 2/5, and the pubis only 1/5). The
sciatic nerve lies on the ischium.
I
scirrho- hard J
sclero- hard
Sclera (SKLEH-raw) the posterior part of the outer, fibrous tunic
K
covering the eyeball; the white of the eye.
L
sclera: Gk. skleros = hard; hence the tough, outer layer of the
eyeball; adj.- scleral.
M
scolio- twisted
N
scoliosis: Gk. skolios = crooked or curve, and -osis = condition,
hence, the lateral curvature of the spine.
O
scrotum: possibly derived from Lt. scorteus = leather; adj.-
scrotal.
P
Sebaceous (seh-BAY-shuhs) gland an exocrine gland located in the Q
dermis that secretes an oily substance called sebum. It is usually
associated with a hair follicle.
R
second- second following
S
secrete: Lt. secretus = separated; hence, to produce a chemical
substance by glandular activity - adj.secretory; noun, secretion.
T
Secretion (seh-KREE-shuhn) a substance produced and released by a
U
cell that serves a useful benefit.
sella: Lt. = saddle; adj.- sellar, sella turcica = Turkish saddle.
V
semen: Lt. = seed; adj.- seminal (seminal vesicle).
semi- half partial
W
semilunaris: adj.Lt. semi = half, and luna = moon; hence, having X
a half-moon shape.
Semicircular canal (seh’-mi-SEHR-kyoo-lawr caw-NAHL) one of
Y
three looping canals in each temporal bone that form a part of the
Z
inner ear. It contains perilymph fluid and the receptors for equilibrium.
© A. L. Neill 140
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