Nervouse And Sensory System Flashcards
What’s the central nervous system consist of
Brain and spinal cord
Peripheral nervous system consist of
All other nerves (sensory)
What lobe of cerebrum processes sight
Occipital lobe
Somatic nervous system
Dorsal root: carry’s sensory diners towards spinal cord
Ventral root carry’s sensory fibers away from spinal cord
What is reflex arc
The somatic nervous system is also associated with involuntary movements (reflexes)
What’s the autonomic nervous system made from
Motor neurons supply the organs
Decided into sympathetic or parasympathetic
How eyes get sight
Light is focused by the lens
Lights hits photosensitive cells of retina
Message transmitted to brain via optic nerve = sight
What does the choroid layer of eye contain
Blood vessels that supply eye ball
How does the ear hear
Vibrations of sound travel across ear drum, moving small bones inside the middle ear that transmits vibrations to receptor cells inside the inner ear
Guttural pouches
Eustachian tibes connect to pharynx to middle ear
