The A to Z of Anatomical Histological and Medical terms
endometrium: Gk. endo = within, and metra = uterus, hence the
A
mucosal lining of the uterine cavity.
Endomysium
B
(ehn’-do-MY-see-uhm) the deepest layer of CT
associated with muscle. It surrounds individual muscle fibers. C
Endoneurium (ehn’-do-NEW-ree-uhm) the deepest layer of CT
associated with a nerve. It surrounds individual nerve fibers
D
(myelinated axons of neurons).
E
Endoplasmic reticulum (ehn’-do-PLAZ-mik reh-TIHK-yew-lum) (ER)
a cytoplasmic organelle that consists of a series of tubules with a
F
hollow center. It functions in the transport of cellular products (smooth
G
ER), and as a site for protein synthesis (if ribosomes are attached,
called rough ER) (see also Sarcoplasmic reticulum specially adapted
H
for muscle fibres).
Endosteum (ehn-DOS-tee-uhm) a membrane lining the medullary
I
cavity w/n a bone & containing osteoblasts and osteoclasts. J
Endothelium (ehn’-do-THEE-lee-uhm) a layer of simple squamous
epithelium lining the inside of BVs & the heart chambers (see
K
endocardium).
L
endothelium: Gk. endo = within, & thele = the nipple; squamous
epithelium lining the heart and BVs.
M
ent- within, inner
N
enter- to do with the gut, intestines
Eosinophil (ee’-oh-SIHN-oh-fihl) a type of granulated WBC
O
characterized by a cytoplasm which absorbs the eosin stain.
ependyma: Gk. = an upper garment. It may refer to a vest or
P
singlet, ie. an under-garment, hence, the lining membrane of the Q
ventricles of the brain and central canal of the SC.
ep- upon, in addition to, beside among, on the outside, over
R
Ependymal (eh-PEN-di-mal) cells a type of neuroglial cells in the
S
brain that line the ventricles. (also = ependymocytes).
epi-upon, in addition to, beside, among, on the outside, over
T
epicanthus: Gk. epi = upon, and kanthos = corner, hence, the fold
U
of skin over the inner angle of the upper eyelid, a normal
characteristic in certain races, & a congenital anomaly in others.
V
Epicardium (epi-KAR-dee-um) the thin outer layer of the heart wall.
(also = visceral pericardium)
W
epicardium: Gk. epi = upon, and kardia = heart, visceral layer of X
serous pericardium covering the heart.
epicondyle: Gk. epi = upon, and kondylos = knuckle, a
Y
prominence on a condyle of the humerus/femur.
Z
© A. L. Neill 90
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