PHYS 261 Midterm 2026 – Physics Study Guide, Exam Review & Practice Questions

Phys,./261,./-,./Midterm


Which,./of,./the,./following,./is,./NOT,./a,./function,./of,./the,./respiratory,./system?
a.,./Assist,./in,./smelling.
b.,./Ventilation
c.,./Air,./Filtration
b.,./Perfusion
d.,./Assist,./in,./speech

e.,./Homeostatic,./regulation,./of,./body,./pH.,./-,./correct,./answer,./✔ ✔
b.,./Perfusion


What,./is,./the,./term,./describing,./inhaled,./air,./after,./normal,./inspiration?
a.,./Tidal,./Volume,./(TV)
b.,./Expiratory,./Reserve,./Volume,./(ERV)
c.,./Inspiratory,./Reserve,./Volume,./(IRV)
d.,./Residual,./Volume,./(RV)

e.,./Vital,./Capacity,./(VC),./-,./correct,./answer,./✔ ✔
c.,./Inspiratory,./Reserve,./Volume,./(IRV)


What,./is,./gas,./exchange,./2?
a.,./The,./exchange,./of,./gasses,./through,./alveoli.,./

,b.,./The,./exchange,./of,./gasses,./through,./cells.
c.,./During,./ventilation.
d.,./The,./exchange,./of,./gasses,./through,./flatulence.,./

e.,./The,./exchange,./of,./gasses,./through,./perspiration.,./-,./correct,./answer,./✔
✔ a.,./The,./exchange,./of,./gasses,./through,./alveoli.


The,./exchange,./of,./gasses,./during,./cellular,./respiration,./is,./known,./as,./which,./
of,./the,./following?
a.,./Gas,./exchange,./1
b.,./Gas,./exchange,./2
c.,./Gas,./exchange,./3
d.,./Gas,./exchange,./4

e.,./Gas,./exchange,./5,./-,./correct,./answer,./✔ ✔ c.,./Gas,./exchange,./3


What,./creates,./natural,./pressure,./gradients,./in,./the,./body?
a.,./Lungs
b.,./Neurons
c.,./Muscles
d.,./Heart

e.,./Red,./Blood,./Cells,./-,./correct,./answer,./✔ ✔ c.,./Muscles

,What,./is,./bulk,./flow?
a.,./Air,./flow,./from,./the,./head,./to,./the,./feet.
b.,./Blood,./pressure.
c.,./Air,./flow,./from,./regions,./of,./high,./to,./low,./pressure.
d.,./The,./natural,./movement,./of,./lipids.

e.,./Resistance,./of,./air,./from,./low,./to,./high,./pressure.,./-,./correct,./answer,./✔ ✔
c.,./Air,./flow,./from,./regions,./of,./high,./to,./low,./pressure.


Describe,./the,./air,./pathway,./starting,./from,./the,./external,./environment.,./-
,./correct,./answer,./✔ ✔
Nose/Mouth,./>,./pharynx,./>,./larynx,./>,./trachea,./>,./bronchus,./>,./bronchioles,
./>,./alveoli




Which,./part,./of,./the,./respiratory,./system,./has,./3,./lobes,,./a,./horizontal,./fissure,,./
and,./an,./oblique,./fissure?
a.,./Right,./Lung
b.,./Left,./Lung
c.,./Alveoli
d.,./Bronchus

e.,./Diaphragm,./-,./correct,./answer,./✔ ✔ a.,./Right,./Lung

, Name,./all,./the,./parts,./of,./the,./upper,./respiratory,./tract?,./-,./correct,./answer,./✔
✔ 1.,./Nasal,./Cavity,./(Nose/Mouth)

2.,./Pharynx
3.,./Larynx
4.,./*Trachea,./-,./some,./would,./argue,./it,./is.



Name,./all,./the,./parts,./of,./the,./lower,./respiratory,./tract?,./-,./correct,./answer,./✔
✔ 1.,./*Trachea,./-,./some,./would,./argue,./it,./is.

2.,./Bronchus
3.,./Bronchioles
4.,./Lungs
5.,./Alveoli
6.,./Diaphragm


Name,./at,./least,./three,./functions,./of,./respiratory,./system?,./-,./correct,./answer,./
✔ ✔ a.,./Homeostatic,./regulation,./of,./body,./pH.

b.,./Assist,./in,./vocalization.
c.,./Assist,./in,./smelling.
d.,./Air,./filtration.
e.,./Air,./ventilation.