1. Light first enters the eye through the lens. a. True b. False 2. Cells from the hypothalamus influence which lobe(s) of the pituitary gland via a portal system? a. anterior b. posterior c. both d. nelther 3. All action potentials are all or none. Threshold must be met, but once it is met, all action potentials are the same. a. True b. False 4. The white, outer tough connective tissue covering of the eye. a. Sclera b. Choroid c. Retina 5. Close vision requires: a. Accommodation b. Constriction c. Convergence d. All of the above 6. The sensory layer of the eye. a. Sclera b. Choroid c. Retina 7. The is the spot where the optic nerve leaves the eyeball. a. Optic disk b. Choroid c. Retina 8. The optic nerve projects information to the a. medial retina b. lateral geniculate body c. primary visual cortex d. optic chiasma 9. Which of the following are true of rods of the eye? a. Sensitive to dim light and best suited for night vision b. Absorb all wavelengths of visible light c. Perceived input is in gray tones only d. Sum of visual input from many rods feeds into a single ganglion cell e. All of the above are true 10. Which would be the most common cause of primary hypothyroidism? a. brain tumor b. dietary deficiency of lodine c. Grave's disease d. autoimmune thyroid disease 11. In secondary hypothyroidism nives uab Exame 2 Scing 2022 it. TSH imvits are lop 8. thymenine lervels ale eirwated c. Trit leveis are law d. tribdochyroinge levels are elenosed manturiction of the a. posterior pituitary b. Inrrold glbita c. anterior pitutary d. hrpothalamus 13. Thyraxine (Ta) leveis in putients with grimpiry hrpothrreidionen are a. ligh 6. Normal che how 14. What would you e cpect to find in a bufbere meth Byperthinelicum? 3. bow levels of th and Tt b. Low levels of TS. and low Mevehr ef TI and f4 c. Hiph levels of Ta sha T4 a. iteon leveis of TStel and low levels se 13 and TA 15. The inhibion of thyroid-atimulating bommene (TSh) searetion thy an incrested bloed eoncentratiga of ehyroid hermatem in anh erahelis of a. positive fecdback b. negacive feecthack C. accentuotian d. ficheitiration 16. Colls from the hypothalartus infucnce mhicth lobe(s) dt the pitruissy gland wid a portal Syatem a. anterior b. posterice c. both d. nether 17. Early cxperiments on the pituitary poand melutid intting or tying up the infundibulurn. Domage to infundibulum will shfect the furtetien of a. the mosterior pituatary only b. the aritertor pituitary anily 6. both lobes of tie poltuitary d. wil not affect pituitary tuinction at all 18. Imagine that the Dorg are curicus about the comnection betwecin the brain and the pituitary glarid, As a result, they sever the intlind bultum when Captain pleard id captured and assimilated into the codiective. Whak syn ptoms vill he experience after this procedure (iriay be imbre than one)? a. Blindriess b. Decrensed cortisol seeretion C. excesstve urination-and dilute wring prodoction d. lack of cvulatian ar sperm producton. e. increased secre.

1. 1. Light first enters the eye through the lens. a. True b. False 2. Cells from the hypothalamus
influence which lobe(s) of the pituitary gland via a portal system? a. anterior b. posterior c. both
d. nelther 3. All action potentials are all or none. Threshold must be met, but once it is met, all
action potentials are the same. a. True b. False 4. The white, outer tough connective tissue
covering of the eye. a. Sclera b. Choroid c. Retina 5. Close vision requires: a. Accommodation b.
Constriction c. Convergence d. All of the above 6. The sensory layer of the eye. a. Sclera b.
Choroid c. Retina 7. The is the spot where the optic nerve leaves the eyeball. a. Optic disk b.
Choroid c. Retina 8. The optic nerve projects information to the a. medial retina b. lateral
geniculate body c. primary visual cortex d. optic chiasma 9. Which of the following are true of
rods of the eye? a. Sensitive to dim light and best suited for night vision b. Absorb all
wavelengths of visible light c. Perceived input is in gray tones only d. Sum of visual input from
many rods feeds into a single ganglion cell e. All of the above are true 10. Which would be the
most common cause of primary hypothyroidism? a. brain tumor b. dietary deficiency of lodine c.
Grave's disease d. autoimmune thyroid disease 11. In secondary hypothyroidism
nives uab Exame 2 Scing 2022 it. TSH imvits are lop 8. thymenine lervels ale eirwated c. Trit
leveis are law d. tribdochyroinge levels are elenosed manturiction of the a. posterior pituitary b.
Inrrold glbita c. anterior pitutary d. hrpothalamus 13. Thyraxine (Ta) leveis in putients with
grimpiry hrpothrreidionen are a. ligh 6. Normal che how 14. What would you e cpect to find in a
bufbere meth Byperthinelicum? 3. bow levels of th and Tt b. Low levels of TS. and low Mevehr
ef TI and f4 c. Hiph levels of Ta sha T4 a. iteon leveis of TStel and low levels se 13 and TA 15.
The inhibion of thyroid-atimulating bommene (TSh) searetion thy an incrested bloed
eoncentratiga of ehyroid hermatem in anh erahelis of a. positive fecdback b. negacive feecthack
C. accentuotian d. ficheitiration 16. Colls from the hypothalartus infucnce mhicth lobe(s) dt the
pitruissy gland wid a portal Syatem a. anterior b. posterice c. both d. nether 17. Early
cxperiments on the pituitary poand melutid intting or tying up the infundibulurn. Domage to
infundibulum will shfect the furtetien of a. the mosterior pituatary only b. the aritertor pituitary
anily 6. both lobes of tie poltuitary d. wil not affect pituitary tuinction at all 18. Imagine that the
Dorg are curicus about the comnection betwecin the brain and the pituitary glarid, As a result,
they sever the intlind bultum when Captain pleard id captured and assimilated into the
codiective. Whak syn ptoms vill he experience after this procedure (iriay be imbre than one)? a.
Blindriess b. Decrensed cortisol seeretion C. excesstve urination-and dilute wring prodoction d.
lack of cvulatian ar sperm producton. e. increased secretion of thyroid heringhe f. Hxcessive
growth (gigantism)
Awrso Lob Exam 2 Spring 2022 Part II: Answer the following quertions on the paper in the

2. space below the question. 1. What is the eftect of the amount of myelinution on condictian
velocity? 2. Describe which ion, Nat or Kt. woblde have a preater affect on the resting mambrane
potential. 3. Bella Goth was diagnored with secockary hypoth raidinm and war given 5ynthreld,
she has retumed for follow-up blood work offer ecek after atarting her medicateon. Her ISH
valuei did not change and her th levelk twwe incressed. Euplin tha following: 3. Why is TSH a
good indicator of elendeting threid hermone levels? b. Why ISH did not change? c. Why did T4
incresed? 4. An action potential is all or none, What does this meun? 5. As a result of stress the
adehohrpogtiras releases Whuch targets the sdrenal cortwx to secrate mstain sodium and warer,
increase blood sogs, and begit breaking down fats. 6. List five functions of the hypothalamisk.
Datingush the roles in the endocrine system and the ANS 7. On the following figure tobel the
following seructures: a. Dorsal root b. Dorsal root ganglion c. Ventral roct. d. Motor neurons
physio Lab Exam 2 Spring 2022 e. Sensory neurons Name 8. On the following figure, label the
following events a. Depolarization b. (Na+ enters) c. Repolarization d. ( K+ leaves) e.
Hyperpolarization/After-hyperpolarization f. Stimulus g. Threshold (a) Phases of the action
potential 9. Using the figure above, briefly describe the events that you labeled on the graph.
Include the appropriate voltage of each event, movement of ions, opening, closing or inactivation
of specific membrane channels, and the timing of events. Explain what the absolute refractory
period is and what causes it. Please write your answer with complete sentences with a logical
organization. (see the diagram in figure 7.20 [Derrickson text] and the reading).
10. Use the following figure to label the following structures (10pts) a. Retina b. Optic nerve c.
Optic disc d. (blind spot) e. Choroid f. Sclera 9. Posterior segment (cavity) h. Lens 1. Anterior
segment(cavity) j. Cornea 11. List the structures that make up the fibrous layer, the vascular
layer and the neural/sensory layer of the eye. Describe the function of each structure.
o Lab Exam 2 Spring 2022 22. Name the two fluids that fill the eye and where they are found.
Describe the function of each. Explain why is each necessary. 13. What is the function of the
iris? Explain the structure of the inis and describe how the iris is controlled (include the specific
dlvisions of the nervous system and their nespective roles). 14.Dr. Crusher has ordered more
blood work for Captain ficard after the last of his Borg implants were removed. You are the
nurse looking over his chart and notice that his levels of ACTH and TSH are low. He also has
low levels of ADH. a. Which gland is more likely to have suitered damage from the implants? b.
Which endocrine organs are most affected by these low levels of hormones? C. List any
symptoms associated with the reults you are seeing that he should be aware of. 15. Use the figure
to identify the following structures. Next to each structure indicate if the structure is in the outer,

3. midele or inner ear: - Incus - Pinna/Auricle - Stapes - Malleus - Semicircular canal - Cochlea -
Tympanic membrane
16. The crista ampullaris (or crista): a. What does it detect (what are the purpose of the
receptors?) b. Where is it located? c. What types of movement does it respond to? 17. Describe
conduction deafness versus sensorineural deafness. Try to use examples that will explain the
difference between the two types in what is impaired or damaged.