08454 002 If a person Influences the secretion of ADH. Less ADH is secreted from the pituitary gland, the walls of the tubules become less permeable, less water is re-absorbed into the blood vessels, and therefore more urine is released. A person can become dehydrated if he/she loses too much water 9 9 blood. Because of increased and collecting tubule become This causes more water to leave the tubule The water that there is in the medulla is re-abs blood capillaries. The amount of water in the blood thus increases The tubule however has less water, forming ve dy LFSC Gr 12/ Assignment 3 August 2021 1.2.6 The picture below shows how important the skin is in controlling the core body temperature in very warm conditions. On a hot day, the hypothalamus is stimulated and sends impulses to the blood vessels More sweat is released. Evaporation of the sweat cools the skin. Sweat gland becomes more active. Blood vessels dilate (become wider). This is called vasodilation. More blood flows to the skin. . More heat is lost from the skin. More blood is sent to the sweat glands. Using the information provided draw your own picture, alongside the one given, showing how the skin controls body temperature in cooler conditions. (5) (14) TOTAL QUESTION 1: (20)
08454 002 If a person Influences the secretion of ADH. Less ADH is secreted from the pituitary gland, the walls of the tubules become less permeable, less water is re-absorbed into the blood vessels, and therefore more urine is released. A person can become dehydrated if he/she loses too much water 9 9 blood. Because of increased and collecting tubule become This causes more water to leave the tubule The water that there is in the medulla is re-abs blood capillaries. The amount of water in the blood thus increases The tubule however has less water, forming ve dy LFSC Gr 12/ Assignment 3 August 2021 1.2.6 The picture below shows how important the skin is in controlling the core body temperature in very warm conditions. On a hot day, the hypothalamus is stimulated and sends impulses to the blood vessels More sweat is released. Evaporation of the sweat cools the skin. Sweat gland becomes more active. Blood vessels dilate (become wider). This is called vasodilation. More blood flows to the skin. . More heat is lost from the skin. More blood is sent to the sweat glands. Using the information provided draw your own picture, alongside the one given, showing how the skin controls body temperature in cooler conditions. (5) (14) TOTAL QUESTION 1: (20)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:08454 002
If a person
Influences the secretion of
ADH. Less ADH is secreted
from the pituitary gland, the
walls of the tubules become
less permeable, less water is
re-absorbed into the blood
vessels, and therefore more
urine is released. A person
can become dehydrated if
he/she loses too much water
9
9
blood.
Because of increased
and collecting tubule become
This causes more water to leave the tubule
The water that there is in the medulla is re-abs
blood capillaries.
The amount of water in the blood thus increases
The tubule however has less water, forming ve
dy
LFSC Gr 12/ Assignment
3
August 2021
1.2.6 The picture below shows how important the skin is in controlling the core
body temperature in very warm conditions.
On a hot day, the hypothalamus is
stimulated and sends impulses to
the blood vessels
More sweat is released.
Evaporation of the sweat
cools the skin.
Sweat gland
becomes more
active.
Blood vessels dilate
(become wider). This
is called vasodilation.
More blood flows
to the skin.
. More heat is lost
from the skin.
More blood is sent
to the sweat
glands.
Using the information provided draw your own picture, alongside the
one given, showing how the skin controls body temperature in cooler
conditions.
(5)
(14)
TOTAL QUESTION 1: (20)
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