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biology
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39
Biology
Undergraduate 1
12/04/2011

Additional Biology Flashcards

 


 

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Term

excretion

 

Definition
performed by formation and discharge the of urine from the body, in humans
Term
renin
Definition
enzyme release by kidneys rise blood pressure
Term
erythyropoetin
Definition
a hormone secerted by the kidneys.m when blood oxygen decreases
Term
bladder
Definition
retain urine
Term
urethra
Definition
passes urine to the outside
Term
urea
Definition
breakdown of amino acids in the liver ammonia
Term
uric acid
Definition
made by the breakdown of nucleotides, Gout
Term
creatinine
Definition
made by muscle cells from the breakdown of creatine phosphate
Term
renal cortex
Definition
outer, granulated layer that dips down in between a radially striated inner layer
Term
renal medulla
Definition

consists of cone- shaped tissue masses called renal pyramids

 

 

Term
renal pelvis
Definition
central space or cavity continous with the ureter
Term
ureter
Definition
A tube that carries urine down from the kidney to the bladder.
Term
glomerulus
Definition
knot of capillaries inside the gloerular capsule
Term
tubular reabsorption
Definition
occurs as molecules and ions are passively and actively absorbed from the nephron into the blood of the peritubular capillary network
Term
tubular secretion
Definition
a second way by which substances are removed from blood and added to the tubular fluid
Term
collecting ducts
Definition
carry urine to the renal pelvis
Term
Bowman's capsule
Definition
the close end of the nephron is pushed in on itself to form a cuplike struture
Term
proximal convoluted tubule
Definition
cuboidal epithelial cells lining this part of the nephron have numerous microvilli, about 1 um in length that are tightly packed and form a brush border
Term
loop of nephron
Definition
simple squamous epithelium appears as the tube narrows and makes a u- turn
Term
distal convoluted tubule
Definition
have numerous mitochondria but they lack microvilli.
Term
filration
Definition
is commonly the mechanical or physical operation which is used for the separation of solids from fluids (liquids or gases) by interposing a medium through which only the fluid can pass. 
Term
urinalysis
Definition
also known as Routine and Microscopy (R&M), is an array of tests performed on urine, and one of the most common methods of medical diagnosis.
Term
cystitis
Definition
refers to urinary bladder inflammation that results from any one of a number of distinct syndromes.
Term
renal
Definition
study of kidney function
Term
micturition
Definition
Urination, the act of urinating.
Term
prostate
Definition
is a compound tubuloalveolar exocrine gland of the male reproductive system in most mammals.
Term
uremia
Definition
s a term used to loosely describe the illness accompanying kidney failure (also called renal failure), in particular the nitrogenous waste products associated with the failure of this organ.
Term
duretic
Definition
All diuretics increase the excretion of water from bodies, although each class does so in a distinct way.
Term
medullary cavity
Definition
is the central cavity of bone shafts where red bone marrow and/or yellow bone marrow (adipose tissue) is stored; hence, the medullary cavity is also known as the marrow cavity.
Term
endoskeleton
Definition
internal support structure of an animal, composed of mineralized tissue. Endoskeleton develops within the skin or in the deeper body tissues. The vertebrate is basically an endoskeleton made up of two types of tissues (bone and cartilage).
Term
exoskeleton
Definition
is the external skeleton that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human. In popular usage, some of the larger kinds of exoskeletons are known as "shells".
Term
hematopoesis
Definition
The production of all types of blood cells generated by a remarkable self-regulated system that is responsive to the demands put upon it.
Term
long bone
Definition
formed of an outer layer of compact bone shown in the enlargement and micrograph
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