The A to Z of Anatomical Histological and Medical terms
Red bone marrow a CT located within spongy bone which contains
A
the stem cells & their differentiated forms involved in blood cell
B
formation.
Red pulp: part of the interior areas of the spleen (the other is white C
pulp). Red pulp serves as a storage area for erythrocytes (RBCs), and
consists of venous sinuses and cords of CT known as splenic cords.
D
This is contractile in rodents and allows for the release of blood in
E
shock conditions.
reflex: an involuntary response - muscular or secretory - to a
F
stimulus mediated by the CNS.
G
Region (REE-jon) an area often of the abdomen defined by anatomical
surface markers, used to enter the abdomen or to locate p;ain or an
H
abnormality smaller than a zone or zona.
ren- kidney
I
Renal (REE-nawl) pertaining to the kidneys. J
renal: adj.Lt. ren = kidney.
Renal corpuscle (REE-nal KOR-puhs-ehl) the portion of a kidney
K
nephron consisting of the Bowman’s capsule and glomerulus (see
L
Corpuscle).
Renal cortex the outer part of a kidney, which contains renal
M
corpuscles and segments of renal tubules.
N
Renal medulla the inner part of a kidney. It contains renal tubules
and BVs. W/n the renal medulla are the renal pyramids, which are
O
striated pyramid-shaped areas formed by the congregation of renal
tubules.
P
Renal pelvis (REE-nal PEHL-vihs) a membrane-lined basin w/n the Q
renal sinus of each kidney.
Renal pyramid (REE-nal PEER-a-mihd) One of about 8 to 10 cone-
R
shaped structures in each kideny extending from the medulla to the
S
cortex, which contain the renal tubules.
Renal sinus (REE-nal SI-nuhs) a potential space w/n each kidney
T
extending from the hilum to the medulla. It contains the renal pelvis.
U
Renal tubule (REE-nal TEW-byewl) part of a nephron of the kidney
consisting of a simple epithelial lined tube extending from Bowman’s
V
capsule to a collecting duct. There are 3 parts to each tubule: the
proximal convoluted tubule, the Loop of Henle (= renal loop) and the
W
distal convoluted tubule. The functions of reabsorption, secretion X
concentration or dilution occur across the walls.
Respiratory membrane the barrier in the lungs which must be
Y
crossed by gas molecules during gas exchange. It consists of the
Z
alveolar epithelium, a BM, and the endothelium of a capillary.
© A. L. Neill 136
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