The A to Z of Anatomical Histological and Medical terms
A
semimembranosus: adj. Lt. semi = half, and membrana =
B
membrane; hence, the hamstring muscle of which the upper half
is membranous.
C Seminal vesicle (SEHM-ih-nawl VEHS-ih-kehl) one of a pair of
convoluted glands of the male reproductive system located posterior to
D
the urinary bladder that secretes part of the semen.
E
seminiferous: Lt. semen = seed and ferre = to carry, to bear: the
sperm-producing tubules in the testes.
F
Seminiferous tubule (sehm’-i-NIHF-ehr-uhs TEW-byewl) a
G
microscopic, tightly packed tube w/n each testis where the sperm
cells develop.
H
semitendinosus: adj. Lt. semi = half, and tendo = I stretch; - the
I
hamstring muscle (the lower half is tendinous).
seps- decay
J septum: Lt. saeptum = fenced in; hence, a dividing fence or
partition-generally of CT.
K
Serosa (sehr-O-sah) any serous membrane. (also, the outer
L
membranous layer of a visceral organ containing blood and nerve
supply as well as lymphatic drainage), similar to the capsule of an
M
organ.
N
serous: Lt. = like serum, serum-like.
Serous membrane (SEHR-uhs MEHM-brane) an epithelial membrane
O
that lines a body cavity or covers an organ, and secretes small
P
amounts of fluid.
serratus: adj. Lt. = notched like the edge of a saw (serrate).
Q sesamoid: adj. Gk. sesamodes, eidos = shape or form; like grains
of sesame, ie. small bone in tendon at site of friction.
R
sialogram: Gk. sialon = saliva, and gramma = a diagram; hence,
S
a radiograph of a salivary duct.
sicc- dry
T
sigmoid: adj. Gk. sigma, the form used at the end of a word
U
having an S-shape; hence, S-shaped.
sinister: adj. Lt. = left-sided.
V
Sigmoid colon (SIHG-moyd KOH-luhn) the distal segment of the
W
colon located b/n the descending colon & the rectum.
Simple (SIHM-pehl) pertaining to a single-layered arangement of
X epithelial cells.
Sinoatrial node (sin’-oh-AY-tree-awl nohd) (SA node) a cluster of
Y
specialized cardiac muscle cells in the wall of the right atrium that
Z
initiate each cardiac cycle (also = the sinuatrial node, or pacemaker).
141 © A. L. Neill
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