NeuroAnatomy_Unit3_Lec3 Flashcards
GSA
General Somatic Afferent
transmits sensory including pain, temp, touch, pressure, and proprioception from muscles, tendons and joints
GVA
General Visceral Afferent
Transmits sensations from mucous membranes, glands, blood vessels and other smooth muscle components.
GSE
General Somatic Efferent
Transmits to skeletal muscle
GVE
General Visceral Efferent
Transmits to smooth muscle, cardiac muscle, or glandular tissues
SSA
Special Somatic Afferent
Transmits impulses enabling vision, hearing, and equilibrium.
SVA
Special Visceral Afferent
Transmits impulses involving smell and taste
SVE
Special Visceral Efferent
Transmits impulses to skeletal muscles that are embryologically related to the digestive tract. (Includes muscles of mastication and facial expression, as well as some muscles of the pharynx and larynx)
How will sympathetic fibers get to the brain?
The sympathetic fibers synapse in the superior cervical ganglion, the postsynaptic fibers will wrap around the internal (majority of fibers choose this) or external (minority of fibers choose this) carotid artery.
Deep Petrosal Nerve
Sympathetic nerve branch off of the internal carotid plexus that will combine with the Greater Petrosal Nerve (a branch of the Facial nerve) to form the Nerve of the Pterygoid Canal.
The sympathetic fibers from the pterygoid canal will supply the nose palate and lacrimal glands.
Long Ciliary Nerve
Branch off of the Nasociliary Nerve from the Opthalmic Division that innervates the dilator pupillae.
How do parasympathetic fibers exit the brainstem?
They travel out with CNIII, CN VII, CN IX, or CN X.
(Though they are anatomically associated with branches of the Trigeminal Nerve (CN V)
Ciliary Ganglion travels with
CN III
Pterygopalatine Ganglion travels with
CN VII
Submandibular Ganglion travels with
CN VII
Otic Ganglion travels with
CN IX
CN I
Olfactory
SVA
Smell
Attaches directly to the brain
CN II
Optic
SSA
Vision
Attaches directly to the brain
CN III
Oculomotor
GSE
Motor-to the muscles of the eye
CN IV
Trochlear
GSE
to the superior oblique muscle of the eye
CN V
Trigeminal
SVE
to the muscles of mastication
CN VI
Abducens
GSE
Motor to the lateral rectus muscle of the eye
CN VII
Facial
Mixed
Motor to the muscles of facial expression
CN VIII
Vestibulocochlear
SSA
Balance, proprioception and hearing
CN IX
Glossopharyngeal
Mixed
1.) Skeletal Motor- elevates the pharynx during swallowing
2.) Visceral Sensory- Blood Pressure and chemoreceptors
3.) General Sensory- mucous membranes
4.) Parasympathetic- secretomotor to the Parotid gland
5.) Taste- posterior 1/3 of the tongue
CN X
Vagus
Mixed
CN XI
Spinal Accessory
SVE
CN XII
Hypoglossal
GSE
motor to the muscles of the tongue
