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Chapter 15 - PowerPoint PPT Presentation


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Fig. 15-CO, p.670 Energy input Energy output Food energy Metabolic pool in body Internal work Thermal energy (heat) External work Energy storage Fig. 15-1, p.671 Table 15-1, p.672 Fig. 15-2, p.673 Fig. 15-3a, p.674 Fig. 15-3b, p.674 Fig. 15-3c, p.674 Fig. 15-4a, p.676

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slide2

Energy input

Energy output

Food energy

Metabolic pool

in body

Internal work

Thermal energy

(heat)

External work

Energy storage

Fig. 15-1, p.671

slide13

Paraventricular N.

Mammillary N.

Arcuate N.

Supraoptic N.

Fig. 15-5b, p.679

slide15

Core temperature

Total body

heat content

Internal heat

production

Heat input

Heat output

Heat gain

Heat loss

External environment

Fig. 15-11, p.686

slide16

Direction of arrows denotes direction of heat transfer

Snowball

Heating pad

1

2

Liquid

converted

to gaseous

vapor

Convection

current

3

4

Fig. 15-12, p.687

slide19

hsp70

hsp90

HSF-1 monomer

hsp40

Folded

protein

hsp90

Unfolded

protein

hsp70

hsp40

HSF-1 trimer

HSF-1 trimerization

and phosphorylation

PPP

PPP

HSE

HSE

hsp70 genes

hsp mRNA

hsp90

hsp40

Nucleus

hsp70

Cytosol

Dissociated complex

Multi-chaperone complex

HSF-1 monomer

Thermal stress

hsps prevent

inappropriate interactions

Fig. 15-16a, p.693

slide25

Artery

Anastomosing

vein

Venae comitantes

Fig. 15-18b, p.696

slide27

Sulzer’s

vein

Blood flow out

Brown

fat

Heat from

nonshivering

thermogenesis

Blood flow in

Fig. 15-19a, p.697

slide28

Hypothalamus

Food

Cold

Thermogenin

Heat

Brown fat cell

Sympathetic

nerve

3

Noradrenaline

Mitochondrion

Triglyceride

UCP

H+

ADP

Respiratory

chain

ATP

FFA

Fig. 15-19b, p.697

slide29

Skin temperature

Core temperature

Peripheral thermoreceptors

(In skin)

Central thermoreceptors

(In hypothalamus,

other areas of CNS, andabdominal organs)

Behavioral

adaptations

Motor neurons

Sympathetic

nervous system

Sympathetic

nervous system

Skeletal muscles

Skin blood vessels

Sweat glands

Muscle tone,

shivering

Skin vasoconstriction

and vasodilation

Sweating

Control of

heat production

or heat loss

Control of

heat production

Control of

heat loss

Control of

heat loss

Fig. 15-20, p.700

Hypothalamic

thermoregulatory

integrating center

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