Anatomy Chapter 15 Part 1 Flashcards
Sense of touch is one of the ____ senses mediated by ____ receptors
general, general
Special Senses of body include
1)
2)
3)
4)
5)
1) vision
2) Taste
3) Smell
4) Hearing
5) Equilibrium
The Eye + Vision
1) ____% of body’s sensory receptors in the eye
2) consists of ___ structures and the ____
3) Accessory structures ____ the eye + aid in eye _____
1) 70%
2) accessory structures, eyeball
3) protect, function
Accessory structures include
1)
2)
3)
4)
5)
1) Eyebrows
2) eyelids
3) Conjunctiva
4) Lacrimal apparatus
5) Extrinsic eye muscles
Accessory structures of eye
1) Eyebrows
a) overlie the _____ margins
Function
b) shade eye from ____
c) prevent _____ from reaching eye
a) supraorbital
b) sunlight
c) perspiration
2) Eyelid
a) also called ____, + are ____ fold that protect the eye ____
b) separated at ____ (silt)
c) have ____ glands associated with eyelids
a) palpebra, skin-covered, anteriorly
b) palpebral
c) lubricating
2) Eyelids
a) Tarsal Meibomian glands
modified _____ glands that produce oily secretions that ____ the eyelid and the eye
b) Ciliary glands between follicles of modified ______-
a) sebaceous, lubricates
b) sweat glands
Accessory Structures of the Eye
3) Conjunctiva
transparent ____ membranes that produces a lubricating ____ secretion
3)
mucous , mucous
4) Lacrimal apparatus
a) has lacrimal glands and ducts that drain into the ___ cavity
b) lacrimal secretion as known as _____, which is a dilute saline solution containing _____, _____ and _____
a) nasal
b) tears, mucus, antibodies + antibacterial lysozyme
Lacriminal apparatus
c) blinking spread tears towards medial commissure where they enter paired _____ ____ via the ____ _____
d) Tears then drain into the ____ sac and ____ duct which empties the nasal cavity
c) lacrimal canaliculi, lacrimal puncta
d) lacrimal sac, nasolacrimal duct
5) Extrinsic eye muscles
a) there’s ___ extrinsic eye muscles
enable the eye to follow ____ objects, maintain ___ of eyeball and ___ it in orbit
b) ____ rectus muscles originate from the common ___ ring, their name indicate ____
c) ____ oblique muscles move eye in ___ plane + ___ eyeball
EX: names
a) 6
moving objects, shape, hold
b) four, common tendinous ring, movement
c) 2, vertical, rotate
Ex: superior and inferior oblique muscles
Muscles
1) Lateral rectus
moves eye _____
controlling CN _____
2) Medial rectus
moves eye ____
Controlling CN ____
3) Superior rectus
___ eye and turns it ____
Controlling CN
1) Lateral rectus
laterally
VI abducens
2) Medial rectus
medially
oculomotor (III)
3) Superior rectus
elevates, medially
oculomotor (III)
Eye Muscles
4) Inferior rectus
___ the eye and turns it ___
Controlling CN ___
5) Inferior oblique
____ the eye and turns it ___
Controlling CN ____
6) Superior oblique
____ the eye and turns it ___
Controlling CN
4) Inferior rectus
depresses, medially
Oculomotor (III)
5) Inferior oblique
elevates, laterally
Oculomotor (III)
6) Superior oblique
depresses, laterally
Trochlear (IV)
Homeostatic Imbalance
1) Sty- painful ____ of any of the ___ glands at the base of the ____
2) Pinkeye- ___ infection caused by ____ or ___
highly ___
Nasal cavity mucosa is continuous with mucosa of ____ ___ system so a cold or nasal inflammation often causes _____ ____ to swell
1)inflammation, sebaceous glands, eyelash
2) conjunctival, bacteria or viruses
contagious
lacrimal duct system, lacrimal mucosa
Swelling constricts the ____ + prevents tears from ____ causing ___ eyes
ducts, draining, teary
