Topic 8: Homeostasis - the control of blood water potential - kidneys

Anti- diurect hormone (ADH)
a peptide molecule = pituitary gland after being made by the hypothalamus - has antidiuretic action that prevents the production of dilute urine
1 of 25
Arquaporins
channel proteins for water molecule in a cell membrane
2 of 25
Ascending limb
One of the structures in the nephron of the kidney - drains urine into the distal convoluted tubule (DCT)
3 of 25
Basement membrane
a thin fibrous extracellular matrix of tissue that separates the epithelium, mesothelium and endothelium from underlying connective tissue
4 of 25
Bowman's capsule
a cup like sac at the beginning of the tubular component of a nephron in the kidney that performs the first step in the filtration of blood to form urine
5 of 25
Collecting duct
part of the renal tubule in a kidney in which water absorption takes place under the control of ADH = urine of variable conc depending on overall water levels in the body
6 of 25
Deamination
the removal of an amino group from an amino acids or other compound
7 of 25
Descending limb
the portion of the renal tubule constituting the first part of the loop of Henle
8 of 25
Distal convoluted tubule
A portion of kidney nephron between the loop of Henle and the collecting duct system
9 of 25
Fenestrations
pores in endothelial cells that allow a faster rate of diffusion between capillaries and tissues
10 of 25
Filtrate
fluid that results from filtration
11 of 25
Glomerulus
a cluster of nerve endings spores and small blood vessels especially a cluster of around the end of a kidney of a kidney tubule
12 of 25
Homeostasis
keeping a constant internal environment
13 of 25
Medulla
a cone shaped neural mass in the brain responsible for multiple autonomic functions
14 of 25
Osmoreceptor cells
cells in the hypothalamus that monitor the conc of solutes in the blood
15 of 25
Podocytes
cells in Bowman's capsule in the kidneys that wrap around capillaries of the glomerulus
16 of 25
Proximal convoluted
the portion of the duct system of the nephron of the kidney which leads from Bowman's capsule to the loop of Henle
17 of 25
Releasing factor
secreted by the hypothalamus to stimulate the posterior lobe of the pituitary gland
18 of 25
Renal vein
the short thick vein which returns blood from the kidneys to the vena cava
19 of 25
Selective re - absorption and secretion
the absorption of some of the components of the glomerular filtrate back into the blood as the filtrate flows through the nephron of the kidney
20 of 25
Ultrafiltration
filtration under pressure
21 of 25
Ureter
the duct by which urine passes from the kidney to the bladder
22 of 25
vasa recta
a network of blood capillaries surrounding the loop of Henle
23 of 25
Renal artery
one of the pairs of large blood vessels that branch off from the abdominal aorta and enter each kidney
24 of 25
osmoregulation
the maintenance of constant osmotic pressure in the fluids of an organism by the control of water and salt conc
25 of 25

Other cards in this set

Card 2

Front

channel proteins for water molecule in a cell membrane

Back

Arquaporins

Card 3

Front

One of the structures in the nephron of the kidney - drains urine into the distal convoluted tubule (DCT)

Back

Preview of the back of card 3

Card 4

Front

a thin fibrous extracellular matrix of tissue that separates the epithelium, mesothelium and endothelium from underlying connective tissue

Back

Preview of the back of card 4

Card 5

Front

a cup like sac at the beginning of the tubular component of a nephron in the kidney that performs the first step in the filtration of blood to form urine

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Biological molecules, organic chemistry and biochemistry resources »