SCI 220 Week 9 Quiz | Full Questions and Answers | 2026 Update | 100% Correct - Nightingale College.

SCI 220 Week 9 Quiz | Full Questions and Answers | 2026 Update | 100%
Correct - Nightingale College.

Question 1

Transparent structure of the eye containing regularly aligned collagen fibers.

 A. Choroid
 B. Ciliary body
 C. Sclera
 D. Cornea ✅
 E. Lens

Answer: D. Cornea



Question 2

Pancreatic cell type that produces insulin.

 A. Beta cells ✅
 B. PP cells
 C. Delta cells
 D. Gamma cells
 E. Alpha cells

Answer: A. Beta cells



Question 3

The basilar membrane supports the:

 A. Spiral lamina
 B. Spiral ganglion
 C. Spiral organ ✅
 D. Modiolus
 E. Bony labyrinth

Answer: C. Spiral organ

, Question 4

Receptors for hearing are located in the:

 A. Semicircular canals
 B. Cochlear duct ✅
 C. Tympanic membrane
 D. Middle ear

Answer: B. Cochlear duct



Question 5

Which of the following is not part of the flow of taste sensation along the gustatory pathway
to the cerebral cortex?

 A. Hypothalamic appetite centers ✅
 B. Vagus nerve
 C. Solitary nucleus of the medulla oblongata
 D. Thalamic nuclei

Answer: A. Hypothalamic appetite centers



Question 6

Which of the following statements does not correctly describe the spiral organ of Corti?

 A. The "hairs" of the receptor cells are embedded in the tectorial membrane.
 B. The tectorial membrane bends with vibrations, whereas the basilar membrane is rigid
and fixed. ✅
 C. High-frequency sounds stimulate hair cells at the basal end of the basilar membrane.
 D. The spiral organ is part of the cochlear duct, which equals the scala media.

Answer: B. The tectorial membrane bends with vibrations, whereas the basilar membrane is
rigid and fixed.



Question 7

Gustatory cells are located in all of the following areas except: