Download BIOLOGY 2423: Special Senses Assignment

BIOLOGY 2423: Special Senses Assignment
Use the figures, tables, and text from Chapter 22 in Tortora to correctly complete this assignment. Be as complete and specific as
possible in finding the locations and functions of these special senses structures, since this material will surface on Exam 3.
EYE COMPONENTS Memory Matrix
Eye Component
Part of which tunic (fibrous,
vascular, or sensory?)
Retina
Sensory
Vitreous Chamber
N/A
Function
(Hint: there is a table in the chapter)
Contains vitreous body; helps maintain shape
of eyeball & keeps retina attached to
choroids.
Ciliary Body
Small depression in macula lutea (center of
posterior retina) containing only cones for
color vision
Fovea Centralis
(central fovea)
Anterior Cavity
N/A
Contains aqueous humor; maintains shape of
eyeball, supplies O2 & nutrients to lens &
cornea
Sclera
Iris
Lens
N/A
Choroid
Cornea
1
EXTRINSIC EYE MUSCLES Memory Matrix
Eye Muscle
Does the following movement(s)
(Hint: Use the actions from
Exhibit 11.2 from chapter 11)
Which nerve innervates it?
(Hint: Use Fig. 19.18 from
chapter 19)
Superior Rectus
Inferior Rectus
Medial Rectus
Lateral Rectus
Superior Oblique
Inferior Oblique
2
EAR COMPONENTS Memory Matrix
Ear Component
Part of external, middle or inner ear?
Contains endolymph; Transmits pressure
waves from scala vestibule, scala tympani, &
vestibular membrane to endolymph
Cochlear Duct
External Auditory Canal
Round Window
Function
(Hint: There is a table in the chapter)
External
Dissipates pressure waves from the scala
tympani back into the middle ear
Vestibular Apparatus
Oval Window
Transmits vibrations from the stapes to set up
fluid pressure waves in the perilymph of the
scala vestibule in the cochlea
Tympanic Membrane
Pinna (auricle)
Saccule
Auditory (Eustachian) Tube
Semicircular Ducts
Utricle
Auditory Ossicles
3
INNER EAR Learning Exercise
The inner ear is also called the labyrinth, because of its complicated series of canals. It consists of the inner
membranous labyrinth outer that is enclosed by an outer bony labyrinth. Use Fig. 22.12 to visually aid you
in this part of the assignment.
Inner Ear Component
Part of bony or membranous
labyrinth?
Semicircular Canals
If part of membranous labyrinth,
then in what part of the bony
labyrinth does it reside?
N/A
Cochlear Duct
Utricle
Membranous
Scala Vestibuli
Vestibule
Bony
N/A
Saccule
Semicircular Ducts
Cochlea
Semicircular Canal
Bony
N/A
Scala Tympani
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