wall of stomach has two muscles cirucllar and longatudal- as food passes down the circ muscles contract behind food and long relax. lOng contract around and helps it move along
1 of 35
Stomach
secretes pepsin, enzymes breaks down protien into polypeptides, also secretes hydrcholic acid
2 of 35
small intestine
Secretes enzyme and chemical digestion
3 of 35
erythrcytes
red blood cells- transport of co2 and o2
4 of 35
leucocytes
white- defence against pathegons
5 of 35
Plasma
transports nutrientseg co2 and urea
6 of 35
arteries
convey blood pumped out at high pressure by ventrciles
7 of 35
Capillaries
carry blood through tissue and have permable walls
8 of 35
Veins
collect blood at low pressure
9 of 35
control of heart rate
sinotrail node acts as a pacemaker initiating each contraction, sends out electical impluse, which stimulates contraction
10 of 35
barriers of infection
skin- contains sabeous glands making surface acidic so they cant survive ---mucus lines the nose, tracea, vagina contains enzymes to kill bactiria
11 of 35
blood clotting
prothombrin-thrombin-fibringon-fibrin
12 of 35
immune response
1.detects bactiria 2.becomes attached to receptor on membrane 3.bactiria is engulfed 4.discharge enzyme 5.bactiria broken down 6.rubbish leucytes distributed
13 of 35
Antibiotic resistance
Some bactiria has natural resistance, they surive and then pass it on to other bactiria which makes it hard to treat diseases especially MRSA has resistance
14 of 35
Solution to resistance
only antibiotics for serious illness, compete course, good hygine levels
15 of 35
ventilation
pumping mechanism which moves air out of lungs maintaining concentration gradient
16 of 35
gas exchange
exachange of gases between organism and surrondings
17 of 35
cell respirattion
controlled release of enzyme in form of atp
18 of 35
alviols
have larg surface area, thin walls and dense capillares
19 of 35
resting potential
difference across a nerve cell when nott stimulated
20 of 35
depolorization
ions channels detect a change in membrane potential when reaches 50mv sodium channels open and becomes positive
21 of 35
repolorixation
potential =0mv pottasium channels open and rush out makes it -
22 of 35
diabetes
control of glucose doesnt work
23 of 35
is blood glucose is high
its taken out of blood and stored as glycagon, detected by islets, glucose B cells stimulate and produce insulikn
24 of 35
if blood glucose is low
A cells stimualtedand secrete gylcagon which activates enzyme converting it from glycagon to glucose
25 of 35
FSH
stimulates the production of follicles and secretion of oestrogen
26 of 35
LH
stimulates completion of meiosis
27 of 35
oestrogen
repair and thnickening of endomettrium
28 of 35
progesterone
maintains endometrum
29 of 35
follicular phase
FSH stimulates growth of follicles
30 of 35
ovulation
LH increase causing the egg to be released, ruptures the follicle creating a corpus luteum
31 of 35
luteal phase
corpus l secretes progesterone and oestrogen which inhibits LH and FSH corpus l degenertaes progesterone levels drop
32 of 35
throxin
from thyroid gland, targets all cells deficency= lack of energy weight gain
33 of 35
leptin
secreted by fatt cells
34 of 35
melatonin
secreted by pineal glands , controls circulation
35 of 35
Other cards in this set
Card 2
Front
Stomach
Back
secretes pepsin, enzymes breaks down protien into polypeptides, also secretes hydrcholic acid
Comments
No comments have yet been made