PreLab 4 Flashcards
(37 cards)
Location of photoreceptors in the eye
Retina
Cranial Nerve responsible for vision
Optic
The vascular layer/tunic of the eye
Choroid
Pigmented, anterior part of the uvea
iris
Responsible for the ciliospinal reflex
Sympathetic Nervous System
Clear watery fluid located in the anterior segment
Aqueous Humor
Reflex that occurs on the same side as that stimulated
ipsilateral
The “white of the eye”
sclera
Responsible for the salivary relfex
parasympathetic nervous system
Transparent anterior portion of the fibrous tunic
cornea
Alternate Name for Sympathetic
thoracolumbar region
Alternate name for Parasymapthetic
craniosacral region
Number of motor neurons in Sympathetic
2 motor neurons
Number of motor neurons in Parasympathetic
2 motor neurons
Number of motor neurons in Somatic
1 motor neuron
Origin of preganglionic cell bodies in Sympathetic
T1-L2
Origin of preganglionic cell bodies in Parasympathetic
Brainstem & S2-S4
Origin of preganglionic cell bodies in Somatic
CNS
spinal cord
Names of ganglia
Sympathetic
STG
Collaterals
Names of ganglia
Parasympathetic
Terminal Ganglia
(in or on the organ)
What neurons are myelinated
Sympathetic
pre-ganglionic - lightly myelinated
What neurons are myelinated
Parasympathetic
pre-ganglionic - lightly myelinated
What neurons are myelinated
Somatic
Whole axon
Heavy myelinated
Effector sites (Target Organs)
Sympathetic
Heart, smooth muscle, glands…
