• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13

Homeostatic Imbalance of Blood Pressure

Extracts from this document...


Running Head: HOMEOSTATIC IMBALANCE OF BLOOD PRESSURE Homeostatic Imbalance of Blood Pressure [Name of the writer] [Name of the institution] Homeostatic Imbalance of Blood Pressure H?m???t??i? d?riv?? fr?m th? Gr??k w?rd h?m?? m??ning ??m? ?nd ?t??i? m??ning ?t?ying, th?r?f?r? h?m???t??i? r?f?r? t? th? m?int?n?nc? ?f th? ?t?bility ?f th? int?rn?l ?nvir?nm?nt within ? b?dy, giving ?n ?rg?ni?m ? l?v?l ?f int?rn?l ind?p?nd?nc? fr?m th? ?xt?rn?l ?nvir?nm?nt. Th? ?ctu?l ?nvir?nm?nt ?f th? c?ll? ?f th? b?dy i? th? int?r?titi?l c?mp?n?nt ?f th? ?xtr?-C?llul?r Fluid (?CF), thi? fluid h?? t? b? k?pt c?n?t?nt fr?m th? ch?nging ?xt?rn?l ?nvir?nm?nt ?r n?cr??i? ?ccur?. ?inc? n?rm?l c?ll functi?n d?p?nd up?n th? c?n?t?ncy ?f thi? fluid, it i? n?t ?urpri?ing th?t in multic?llul?r ?nim?l?, ?n imm?n?? numb?r ?f r?gul?t?r m?ch?ni?m? h?v? ?v?lv?d t? m?int?in it. W.B c?nn?n u??d th? t?rm h?m???t??i? t? d??crib? th? v?ri?u? phy?i?l?gic?l ?rr?ng?m?nt? which ??rv? t? r??t?r? th? n?rm?l ?t?t? ?nc? it h?? b??n di?turb?d. H?m???t?tic m?ch?ni?m? inv?lv?? th? int?r?cti?n? ?f m?ny ?rg?n? ?nd ?y?t?m? in pr?viding th? ?ptimum c?nditi?n? f?r th? c?ll?, which r??ult? in ?ptimum ?nvir?nm?nt f?r th? ?nzym?? t? w?rk in thu? k??ping th? c?ll ?liv?. Th? m?mm?li?n kidn?y i? c?ntr?l t? h?m???t??i?, b?ing inv?lv?d in th? r?gul?ti?n ?f w?t?r ?nd ??lt b?l?nc?, pH ?nd m?t?b?lit?? l?v?l?. Th? liv?r i? c?ntr?lly c?nc?rn?d in th? r?gul?ti?n? ?f th? m?t?b?lit? l?v?l? ?nd th?rm?g?n??i?. Th? hyp?th?l?mu? m?nit?r? pH, ??m?tic pr???ur? ?nd t?mp?r?tur? ?nd it bring? ...read more.


?? w?ll ?? w?t?r ?nd h??t l???. Th? tw? di?tinct l?v?l? ?r? d?rmi? ?nd ?pid?rmi?. Th? ?pid?rmi? i? c?mp???d ?f ?pith?li?l ti??u? ?nd pr?vid?? bigg??t f?rm ?f pr?t?cti?n, fibr?u? c?nn?ctiv? ti??u? m?k?? up th? d?rmi? which i? m??t ?f th? ?kin. Th? d?rmi? h?? ? n?tw?rk ?f v????l? fl?wing pr?viding it? nutri?nt?, th? ?pid?rmi? l?y?r r?c?iv?? it? nutri?nt? vi? diffu?i?n thr?ugh th? ti??u? fluid? ?? it i? n?t v??cul?ri??d. Th?r? i? ? l?y?r ?f d??d c?ll? which pr?t?ct? th? ?pid?rm?l l?y?r, th??? ?r? c?ll?d k?r?tin?cyt??. ?nd th?y pr?duc? k?r?tin which giv?? w?t?rpr??f ?nd pr?t?ctiv? pr?p?rti??. Th?r? ?r? ?l?? m?l?n?cyt?? c?ll? pr?ducing th? pigm?nt m?l?nin which i? r??p?n?ibl? f?r th? c?l?uring ?f th? ?kin. M?t?b?lic ?ctiviti?? r??ult? in h??t pr?ducti?n ?nd during vig?r?u? ?x?rci?? ?ctiv? ?rg?n? pr?duc? ?xc??? h??t which n??d? r?m?ving fr?m th? b?dy t? pr?v?nt ? h?rmful ri?? in b?dy t?mp?r?tur? ?nd th? p?t?nti?l d?v?l?pm?nt ?f h??t ?tr?k?. If th?r? i? ? ch?ng? in th? t?mp?r?tur? th?n th? l??? ?f h??t thr?ugh th? ?kin i? ?p?cific?lly m?int?in?d by n?ur?n?? c?ntr?lling th? ?xt?nt ?f dil?ti?n ?f th? ?rt?ri?l??. Wh?n th? t?mp?r?tur? ?f th? b?dy i? incr????d by 0.25 t? 0.5 C th? ?w??t gl?nd? ?r? ?timul?t?d t? ??cr?t? ?w??t, which i? c?nv?y?d t? th? ?urf?c? ?f th? b?dy by duct?. Th? c?pill?ry b?d? ?r? fill?d with bl??d du? t? th? dil?ti?n ?f ?rt?ri?l?? ?nd thu? r?l????? th? ?xc??? h??t ?? ?w??t thr?ugh th? ?ud?rif?r?u? ...read more.


w?und. Cl?tting f?ct?r? ?r? ?ub?t?nc?? inv?lv?d in cl?tting ?nd th?y cr??t? ? c??c?d? ?f int?r?cti?n? th?t r??ult? in cl?t f?rm?ti?n. Th? cl?tting pr?c??? i? ? p??itiv? f??db?ck m?ch?ni?m: ?nc? ? cl?t i? f?rm?d it c?ntinu?? t? ?xp?nd ?nd ?xt?rn?l f?ct?r? ?r? r?quir?d t? h?ld it in ch?ck. Cl?tting ?ccur? in thr?? ?t?g??. Th? fir?t ?t?g? c?n ?ccur vi? tw? di?tinct p?thw?y?, intrin?ic ?r ?xtrin?ic, ?nd r??ult? in th? f?rm?ti?n ?f th? ?nzym? pr?thr?mbin???. Thi? ph??? c?n b? d??crib?d ?? ? c??c?d? ?f int?r?cti?n? b?tw??n cl?tting f?ct?r? (18). ??urc?: M?ri?b ?N, 2004, Hum?n ?n?t?my & Phy?i?l?gy, ?ixth ?diti?n, ??n Fr?n?i?c?, P??r??n B?nj?min Cumming?; P?g? 663 ??urc?: http://www.th?-?ci?nti?t.c?m/ im?g?? /yr2002/??p16/figur?.gif H??m?phili? i? ? di??rd?r ?f th? bl??d cl?tting ?y?t?m. Th?r? ?r? diff?r?nt typ?? ?f h??m?phili? ?nd it d?p?nd? ?n th? d?fici?ncy ?f th? bl??d cl?tting f?ct?r?. Th? p?r??n ?uff?ring fr?m h??m?phili? will n?t ?t?p bl??ding. Tr??tm?nt inv?lv?? tr?n?fu?i?n? ?f fr??h pl??m? ?r c?nc?ntr?t?? ?f th? d?fici?nt cl?tting f?ct?r t? r?li?v? fr? t?nd?ncy t? bl??d (19). ?th?r ?x?mpl?? ?f p??itiv? f??db?ck m?ch?ni?m? ?r? l?ct?ti?n ?nd l?b?ur c?ntr?cti?n?. T? ?umm?ri?? th? ?ignific?nc? ?f h?m???t??i?, th? h?m???t?tic ?y?t?m ?f th? b?dy i? which ?rg?n? w?rk t?g?th?r t? m?int?in it? ?tructur? ?nd functi?n? thr?ugh ????rtm?nt ?f dyn?mic ?quilibrium? c?r?fully c?ntr?ll?d by int?rd?p?nd?nt r?gul?ti?n m?ch?ni?m?. Th? ?y?t?m r??ct? t? ?v?ry ch?ng? in th? ?nvir?nm?nt, ?r t? ?v?ry r?nd?m di?turb?nc?, thr?ugh ? ??ri?? ?f m?dific?ti?n? ?f ?qu?l ?iz? ?nd ?pp??it? dir?cti?n t? th??? th?t cr??t?d th? di?turb?nc? (20). Th? ?im ?f th??? ?dju?tm?nt? i? t? m?int?in th? int?rn?l b?l?nc??. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Humans as Organisms section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Humans as Organisms essays

  1. Marked by a teacher

    Biology Revision notes - Human Biology

    5 star(s)

    The alveoli can burst and reduce the surface area of the lungs and therefore less oxygen can pass to the blood with each breath. Homeostasis Homeostasis is keeping everything in the body constant e.g. temperature, glucose levels It is maintaining a constant internal environment, so everything that goes into the

  2. human physiology

    * Fallopian tubes: A tube either side of the uterus receives the released eggs from the ovaries. * Ovary: This releases an egg each month from alternative ovaries. They produce the hormone oestrogen and progesterone. * Uterus: This is the site of pregnancy where the developing baby grows.

  1. Investigating the density of blood

    When I perform the real experiment I will have a better idea of what I am doing and the techniques needed to gain more precise results. The method I used was fine however I feel one modification needs to be made.

  2. Romeo n& Juliet, is this play about love, hate or both?

    up in social standing people become, starting with servants, the Lord and Lady Capulet until eventually the Prince of Verona himself becomes involved in the fray. Act one Scene five is a very key scene in this play, as it contains a conflicting mixture of strong hate and passionate true love.

  1. Exercise Physiology.

    Before you even start to exercise, there is an increase in your heart rate. This is called the anticipatory rise, which occurs because the sympathetic nervous system releases adrenaline. Once the exercise has started, there is an increase in carbon dioxide and lactic acid in the body, which is detected by chemoreceptors.

  2. Exercise Phy

    an the ventilatory equivalent for carbon dioxide (VE/Vco2)(Scott Power & Howley, 2004) In a study of the ventilatory breakpoint of boy and men, showed discernibly breakpoint in the men and 50/75 % of the boys and some with two breakpoints.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work