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The lymphatic trunks entering into cisterna chyli are ABC A. left lumbar trunk B. right lumbar trunk C. intestinal trunk
D. left bronchomediastinal trunk E. right bronchomediastinal trunk
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SENSORY ORGAN
Single-choice questions to top
1. The retina A
A. it can be divided into the optic part and the bland part B. the optic part lines the internal surface of the ciliary body C. the bland part lines the internal surface of the choroid D. the optic disc located in the bland part E. it is completely composed of neurons
2. The optic disc B
A. located in the bland part of the retina
B. is formed by the optic nerve pierces the retina C. is sensitive to the light D. fovea centralis is its center E. lies lateral to the mecula lutea
3. The iris B
A. is the largest part of vascular tunic
B. divides the chamber of the eye into anterior and posterior parts C. meets with the sclera to form the angle of anterior chamber D. can alter the curvature of lens E. is posterior to the ciliary body
4. The visual acuity is highest at E A. pars iridica B. pars ciliaris C. macula lutea D. optic disc E. fovea centralis
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5. The ciliary body
A. is the largest part of vascular tunic.
B. divides the chamber of eye into anterior and posterior parts. C. is colourless and transparent.
D. has a anterior portion called the ciliary ring
E. contains smooth muscle fibers called ciliary muscle E
6. The refractive media of eyeball does not include B A. cornea B. sclera C. lens
D. aqueous humor E. vitreous body
7. The aqueous humor B
A. is formed from the ciliary processes
B. fills the space between the lens and the retina C. plays the supporting role for the retina D. can alter the curvature of lens E. absorbed mainly by the cornea
8. The conjunctiva A
A. is a nonvascular structure. B. is not transparent
C. lines the inner surface of eyelids (called bulbar conjunctiva) D. lines the anterior part of sclera (called palpebral conjunctiva) E. encircles a closed capsule (called conjunctival sac)
9. Which muscle turns the anterior pole of the eye superomedially A. rectus superior B. rectus inferior C. rectus medialis D. rectus lateralis E. obliquus superior
10.Which structure does not belong to the middle ear E A. tympanic cavity B. auditory tube C. mastoid antrum D. auditory ossicles
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A E. vestibule
11. The tympanic cavity C
A. is a closed cavity in temporal bone B. the jugular wall is the anterior wall
C. the auditory tube communicates with the tympanic cavity through the carotid wall D. the fenestra vestibuli and fenestra cochlea located in the mastoid wall E. the tegmental wall is the medial wall
12. Which structure belongs to the bony labyrinth C A. the semicircular ducts B. the utricle and saccule C. the cochlea D. cochlear duct E. Corti’s aparatus
13. Which structure does not belong to the membranous labyrinth C A. the semicircular ducts B. the utricle and saccule C. the cochlea D. cochlear duct E. Corti’s aparatus
14.Which one communicates with the tympanic cavity E A. external acoustic meatus B. internal acoustic meatus C. bony semicircular canal D. cochlear duct E. auditory tube
15. The bony labyrinth includes A
A. bony semicircular canal, vestibule, cochlea. B. bony semicircular canal, vestibule, cochlear duct. C. tympanic cavity, vestibule, cochlea D. cochlear duct, saccule, vestibule.
E. cochlear spiral canal, tympanic cavity, bony semicircular canal.
16. The auditory receptor lies in E A. macula utriculi B. macula sacculi C. crista ampullaris D. vestibule E. spiral organ
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Multi-choice questions to top 17. The lens ABDE
A. lies between the iris and the vitreous body B. is transparent and elastic C. is a biconcave body D. lacks vessels and nerve
E. is suspended by ciliary zonule
20. Which one is wrong about the optic disc BCDE A. It is rich in photoreceptor
B. It is the site that the vessels of the retina pass through C. It is the site that the optic nerve pierces the retina D. It is insensitive to light E. It is also termed blind spot
21. Extraocular muscles include BCD A. sphincter pupillae
B. superior and inferior recti (rectus) C. medial and lateral recti (rectus) D. superior and inferior obliquus
22. Which ones are wrong about the tympanic cavity ABCD A. The medial wall is carotid wall
B. The posterior wall is labyrinthine wall C. The anterior wall is jugular wall D. The inferior wall is mastoid wall E. The lateral wall is membranous wall
23. Receptors of balance contain ABC A. macula utriculi B. macula sacculi C. crista ampullaris D. cochlear duct E. spiral organ
Answer questions to top
1. write out the layers and divisions of wall of eye ball.
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