10/6/25, 1:33 PM Ivy Tech APHY 201 Exam 1 2025 (Actual Exam) Questions with verified Answers (Latest Update 2025) UPDATE!! Flashcards | Qui…
Ivy Tech APHY 201 Exam 1 2025 (Actual Exam)
Questions with verified Answers (Latest Update
2025) UPDATE!!
Save
Terms in this set (217)
External body surfaces continuous with the external environment
are...
1) Nasal and oral passages
2) Respiratory tract
What are the 6 external 3) GI tract
body surfaces? 4) Urinary tract
5) Reproductive tract
6) Ducts of exocrine glands
from an internal body fluid
Internal body surfaces can
or
only be accessed...
by transport across an external membrane
1) Cell membranes of cells within the body
What are the 3 internal
2) Cardiovascular and lymphatic membranes
body surfaces?
3) Serous and connective tissue membranes
Membranes divide the maintain separate chemical environments
body into compartments
that...
What is the external face the surface facing the environment outside of the
of the membrane? body
https://quizlet.com/1088069078/ivy-tech-aphy-201-exam-1-2025-actual-exam-questions-with-verified-answers-latest-update-2025-update-flash-cards/… 1/19
,10/6/25, 1:33 PM Ivy Tech APHY 201 Exam 1 2025 (Actual Exam) Questions with verified Answers (Latest Update 2025) UPDATE!! Flashcards | Qui…
What is the apical (or the surface facing the lumen of a hallow structure
huminal) face of the
membrane?
What is the basolateral the surface facing the intestinal environment
face of the membrane?
1) Blood plasma and lymph
2) Interstitial fluid
What are the 7 fluid 3) Intracellular fluid
compartments of the 4) Fluid in membranous organelles
body? 5) Cerebrospinal fluid
6) Synovial cavities
7) Chambers in eyeballs and ears
Intracellular fluid contains 2/3 (28L)
how much of the body's
water?
Extracellular fluid contains 1/3 (14L)
how much of the body's (3L blood plasma, 11L interstitial fluid)
water?
Pressure driven (blood pressure and fluid hydrostatic
Filtration
pressure)
Diffusion Driven by concentration gradients
Driven by concentration gradients of solutes (only
Osmosis
water)
1) Evaporation from skin and moist membranes, sweat
(+/- 900mL)
Routes of water loss
2) Feces (+/- 100mL)
3) Urine (+/- 1.5L)
1) Food, beverages (+/- 2.25L)
Routes of water gains
2) Metabolism (+/- 250mL)
Primary receptors of the Hypothalamic receptor neurons signal the thirst
thirst mechanism center when blood plasma osmolarity > 280 mOsm
https://quizlet.com/1088069078/ivy-tech-aphy-201-exam-1-2025-actual-exam-questions-with-verified-answers-latest-update-2025-update-flash-cards/… 2/19
, 10/6/25, 1:33 PM Ivy Tech APHY 201 Exam 1 2025 (Actual Exam) Questions with verified Answers (Latest Update 2025) UPDATE!! Flashcards | Qui…
Secondary receptors of Osmoreceptors in the mouth detect low volume and
the thirst mechanism increase concentration of saliva
Integrating center Hypothalamic thirst center
1) Stimulation of water-seeking behaviors through the
Stimulation of the thirst cerebral cortex
center causes... 2) Increased water conservation by the kidneys,
through ADH from the posterior pituitary
Moistening of oral osmoreceptors (inhibits
Temporary cessation of
hypothalamic thirst center only as long as the mouth
thirst
remains moist)
Return to normal plasma osmolarity (strongly inhibits
Long term cessation of
thirst center; as long as plasma osmolarity remains
thirst
normal, thirst is fully inhibited)
Cannot fix dehydration; only reduces water loss
Renal response (reduces filtrate formation and increases water
absorption from the urine)
Hypothalamic Plasma osmolarity < 280 mOsm strongly inhibits thirst
compensations for by quieting receptor neurons
overhydration
Renal Response Increase water loss in urine by increasing filtrate
compensations for formation and inhibiting water absorption from the
overhydration urine
The ability of the body to maintain optimal
Homeostasis performance of a system under a given set of
conditions
When conditions of homeostatic set points change to maintain the optimal
homeostasis change... performance of the system
Systems that allow communication between cells to
Feedback loops maintain a physiological system within a given range
of function
https://quizlet.com/1088069078/ivy-tech-aphy-201-exam-1-2025-actual-exam-questions-with-verified-answers-latest-update-2025-update-flash-cards/… 3/19
Ivy Tech APHY 201 Exam 1 2025 (Actual Exam)
Questions with verified Answers (Latest Update
2025) UPDATE!!
Save
Terms in this set (217)
External body surfaces continuous with the external environment
are...
1) Nasal and oral passages
2) Respiratory tract
What are the 6 external 3) GI tract
body surfaces? 4) Urinary tract
5) Reproductive tract
6) Ducts of exocrine glands
from an internal body fluid
Internal body surfaces can
or
only be accessed...
by transport across an external membrane
1) Cell membranes of cells within the body
What are the 3 internal
2) Cardiovascular and lymphatic membranes
body surfaces?
3) Serous and connective tissue membranes
Membranes divide the maintain separate chemical environments
body into compartments
that...
What is the external face the surface facing the environment outside of the
of the membrane? body
https://quizlet.com/1088069078/ivy-tech-aphy-201-exam-1-2025-actual-exam-questions-with-verified-answers-latest-update-2025-update-flash-cards/… 1/19
,10/6/25, 1:33 PM Ivy Tech APHY 201 Exam 1 2025 (Actual Exam) Questions with verified Answers (Latest Update 2025) UPDATE!! Flashcards | Qui…
What is the apical (or the surface facing the lumen of a hallow structure
huminal) face of the
membrane?
What is the basolateral the surface facing the intestinal environment
face of the membrane?
1) Blood plasma and lymph
2) Interstitial fluid
What are the 7 fluid 3) Intracellular fluid
compartments of the 4) Fluid in membranous organelles
body? 5) Cerebrospinal fluid
6) Synovial cavities
7) Chambers in eyeballs and ears
Intracellular fluid contains 2/3 (28L)
how much of the body's
water?
Extracellular fluid contains 1/3 (14L)
how much of the body's (3L blood plasma, 11L interstitial fluid)
water?
Pressure driven (blood pressure and fluid hydrostatic
Filtration
pressure)
Diffusion Driven by concentration gradients
Driven by concentration gradients of solutes (only
Osmosis
water)
1) Evaporation from skin and moist membranes, sweat
(+/- 900mL)
Routes of water loss
2) Feces (+/- 100mL)
3) Urine (+/- 1.5L)
1) Food, beverages (+/- 2.25L)
Routes of water gains
2) Metabolism (+/- 250mL)
Primary receptors of the Hypothalamic receptor neurons signal the thirst
thirst mechanism center when blood plasma osmolarity > 280 mOsm
https://quizlet.com/1088069078/ivy-tech-aphy-201-exam-1-2025-actual-exam-questions-with-verified-answers-latest-update-2025-update-flash-cards/… 2/19
, 10/6/25, 1:33 PM Ivy Tech APHY 201 Exam 1 2025 (Actual Exam) Questions with verified Answers (Latest Update 2025) UPDATE!! Flashcards | Qui…
Secondary receptors of Osmoreceptors in the mouth detect low volume and
the thirst mechanism increase concentration of saliva
Integrating center Hypothalamic thirst center
1) Stimulation of water-seeking behaviors through the
Stimulation of the thirst cerebral cortex
center causes... 2) Increased water conservation by the kidneys,
through ADH from the posterior pituitary
Moistening of oral osmoreceptors (inhibits
Temporary cessation of
hypothalamic thirst center only as long as the mouth
thirst
remains moist)
Return to normal plasma osmolarity (strongly inhibits
Long term cessation of
thirst center; as long as plasma osmolarity remains
thirst
normal, thirst is fully inhibited)
Cannot fix dehydration; only reduces water loss
Renal response (reduces filtrate formation and increases water
absorption from the urine)
Hypothalamic Plasma osmolarity < 280 mOsm strongly inhibits thirst
compensations for by quieting receptor neurons
overhydration
Renal Response Increase water loss in urine by increasing filtrate
compensations for formation and inhibiting water absorption from the
overhydration urine
The ability of the body to maintain optimal
Homeostasis performance of a system under a given set of
conditions
When conditions of homeostatic set points change to maintain the optimal
homeostasis change... performance of the system
Systems that allow communication between cells to
Feedback loops maintain a physiological system within a given range
of function
https://quizlet.com/1088069078/ivy-tech-aphy-201-exam-1-2025-actual-exam-questions-with-verified-answers-latest-update-2025-update-flash-cards/… 3/19
