(A) Mean water absorption rate and (B) mean percentage of time spent in the water absorption response (WR) posture for control (n = 6 trials) and angiotensin Il-treated (n = 8 trials) toads. Data are combined from two laboratory sessions using a total 9 individual %3D toads. Values are means + 2 SE. Briefly explain the water absorption rate and time spent in the water absorption response (WR) between control and Angiotensin l-treated toads provided with voluntary access to a water-saturated gauze substrate. |

Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Lauralee Sherwood
Chapter14: The Urinary System
Section: Chapter Questions
Problem 9RE
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Small, terrestrial, bufonid toads in the genus Anaxvus (formerly Bufo) were first hydrated
and later the toads' urinary bladders were drained by inserting a polished glass
microhematocrit tube into the cloaca. After that, toads were injected with equal volumes of
angiotensin Il or control solutions.
1.4
100
A
В
1.2
80
1
0.8
60
0.6
40
0.4
0.2
20
-0.2
Control
Angiotensin II
Control
Angiotensin II
-0.4
-20
Treatment
Treatment
(A) Mean water absorption rate and (B) mean percentage of time spent in the water
absorption response (WR) posture for control (n = 6 trials) and angiotensin Il-treated (n = 8
trials) toads. Data are combined from two laboratory sessions using a total 9 individual
toads. Values are means +2 SE.
Briefly explain the water absorption rate and time spent in the water absorption response
(WR) between control and Angiotensin Il-treated toads provided with voluntary access to a
water-saturated gauze substrate.
Mean Water Absorption Rate (g/h)
Mean Time in WR Posture
(% of total observation period)
Transcribed Image Text:Small, terrestrial, bufonid toads in the genus Anaxvus (formerly Bufo) were first hydrated and later the toads' urinary bladders were drained by inserting a polished glass microhematocrit tube into the cloaca. After that, toads were injected with equal volumes of angiotensin Il or control solutions. 1.4 100 A В 1.2 80 1 0.8 60 0.6 40 0.4 0.2 20 -0.2 Control Angiotensin II Control Angiotensin II -0.4 -20 Treatment Treatment (A) Mean water absorption rate and (B) mean percentage of time spent in the water absorption response (WR) posture for control (n = 6 trials) and angiotensin Il-treated (n = 8 trials) toads. Data are combined from two laboratory sessions using a total 9 individual toads. Values are means +2 SE. Briefly explain the water absorption rate and time spent in the water absorption response (WR) between control and Angiotensin Il-treated toads provided with voluntary access to a water-saturated gauze substrate. Mean Water Absorption Rate (g/h) Mean Time in WR Posture (% of total observation period)
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