Lecture-special Senses Flashcards
When is the vitreous body of the eye formed?
Is formed at birth and does not regenerate if injured
Cranial nerves that distribute preganglionic parasympathetic fibers to peripheral ganglia include?
CN III, VII, IX, X
The origin of all sympathetic nerves arise from?
The grey matter of lateral horn of spinal cord segments T1-L2.
Sympathetic nervous system is known to?
Decrease blood supply to intestines
Peripheral sensory nerves are what kind of neuron?
Pseudounipolar
Cranial nerve IX-glossopharyngeal provides what sense?
General sensation and taste from the posterior 1/3 of the tongue
Longitudinal fasciculi is an example of what kind of tract?
Association tract
All organs of special sense receive their innervation via?
Cranial nerves
Orbicularis oculi
Sphincter muscle that closes the eye
Which 2 holes of the skull does the main blood supply to the brain enter?
Foramen magnum and carotid canal
The lobe of the brain associated with olfaction and gustation is ?
Temporal lobe
What is the function of the Utricle and saccule of the ear ?
Gravity and linear acceleration
Sympathetic innervation does what to the body?
Increases heart rate and respiratory rate
Parasympathetic innervation does what to the body?
Constricts the pupils
Aids in digestion and rest
Endolymph is present in what part of the body?
Membranous labyrinth of the inner ear
Autonomic centers for basic rhythmicity functions, such as heart rate and respiratory rate are located here
Medulla oblongata
Rods and cones in the eye synapse with what kind of neuron?
Bipolar
Point at which no rods or cones are present
Optic disc- blind spot
Lens
Structure with high elasticity; changed shape to adjust light coming in
