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.