Unit 8 Flashcards
When the ciliary body contracts, the suspensory ligaments will ____, causing the lens to become more globular
Relax
This muscle of the iris is innervated by sympathetics, using norepinephrine as an excitatory action on Alpha1 receptors
Radial (going outward from pupil)
The radial muscle of the iris will ____ the pupil
Dilate
This muscle of the iris is innervated by parasympathetics, and uses Acetylcholine at muscarinic receptors (+)
Circular muscle
The circular muscle of the iris will ____ the pupil
Constrict
The origin of the pre-ggl PE cell body associated with the eye
Edinger-Westphal Nucleus in Midbrain
The name and type of ganglion associated with the synapse of the pre/post ggl PE associated with the eye
Ciliary ggl, terminal
The name of the nerve going to the iris and ciliary body after leaving the ciliary ggl
Short ciliary nerve
Origin of pre-ggl sympathetic cell body associated with the iris
T1 IML nucleus
The pre/post ggl sympathetic synapse associated with the iris occurs here
Superior cervical ganglion
The post-ggl sympathetic axons associated with the iris travel on what before going through the ciliary ggl?
Internal carotid plexus
The innervation of the ciliary body and iris is what cranial nerve?
III (Oculomotor)
A relaxed ciliary muscle (body) will cause the suspensory ligaments to tighten and the lens to flatten. This is used for ___ vision
Far
Another word for near-vision?
Accomodation
Innervation of the lacrimal gland is associated with what cranial nerve?
CN VII (Facial)
The pre-ggl PE path of CN III travels through what opening in the skull?
Superior Orbital Fissure (SOF)
The parasympathetic innervation of the lacrimal gland causes fluid secretion for ____, while the sympathetics cause fluid secretion for ____
Protection, emotions
Origin of pre-ggl PE cell body associated with the lacrimal gland
Superior salivatory nucleus in Pons
The pre-ggl PE of CN VII (to lacrimal gland) leave the internal skull via the ____
Internal Auditory Meatus (IAM)
After leaving via the IAM, the pre-ggl PE of CN VII is called the ____
Greater petrosal nerve
The pre-ggl PE of CN VII join up with the post-ggl sympathetics for the lacrimal gland and traverse through a small canal in the skull. What’s the name of the nerve at this point?
Nerve of the pterygoid canal
The origin of the post-ggl PE cell body to the lacrimal gland
Pterygopalatine ggl
Another name for the pterygopalatine ggl?
Sphenopalatine ggl
The post-ggl PE and sympathetic axons to the lacrimal gland join up with the ____ nerve after leaving the pterygopalatine ggl
Maxillary branch of Trigeminal (V2)