optic cup
eyecup | (embryology) a two-walled cuplike depression that develops into the pigmented and sensory layers of the retina |
dais
podium
pulpit
rostrum
ambo
stump soapbox | a platform raised above the surrounding level to give prominence to the person on it |
fiber optic cable
fibre optic cable | a cable made of optical fibers that can transmit large amounts of information at the speed of light |
fiber-optic transmission system
fibre-optic transmission system
FOTS | a communication system using fiber optic cables |
spud
stump spud | a sharp hand shovel for digging out roots and weeds |
| stump | (cricket) any of three upright wooden posts that form the wicket |
boldness nerve brass
face cheek | impudent aggressiveness, I couldn't believe her boldness, he had the effrontery to question my honesty |
heart mettle nerve
spunk | the courage to carry on, he kept fighting on pure spunk, you haven't got the heart for baseball |
optic chiasma
optic chiasm
chiasma opticum | the crossing of the optic nerves from the two eyes at the base of the brain |
optic radiation
radiatio optica | a nerve pathway from the lateral geniculate body to the visual cortex |
| nerve plexus | a network of intersecting nerves |
nervous tissue
nerve tissue | tissue composed of neurons |
eye
oculus
optic | the organ of sight |
blind spot
optic disc
optic disk | the point where the optic nerve enters the retina, not sensitive to light |
center
centre
nerve center
nerve centre | a cluster of nerve cells governing a specific bodily process, in most people the speech center is in the left hemisphere |
nerve fiber
nerve fibre | a threadlike extension of a nerve cell |
medullated nerve fiber
myelinated nerve fiber | a nerve fiber encased in a sheath of myelin |
nerve cell
neuron | a cell that is specialized to conduct nerve impulses |
motor neuron
efferent neuron
motor nerve fiber
motoneuron | a neuron conducting impulses outwards from the brain or spinal cord |
nerve ending
nerve end | the terminal structure of an axon that does not end at a synapse |
| free nerve ending | microscopic sensory nerve endings in the skin that are not connected to any specific sensory receptor |
nerve
nervus | any bundle of nerve fibers running to various organs and tissues of the body |
motor nerve
efferent nerve
efferent | a nerve that conveys impulses toward or to muscles or glands |
sensory nerve
afferent nerve
afferent | a nerve that passes impulses from receptors toward or to the central nervous system |
nerve pathway
tract
nerve tract
pathway | a bundle of myelinated nerve fibers following a path through the brain |
| cranial nerve | any of the paired nerves that originate in the brain stem |
| depressor depressor nerve | any nerve whose activity tends to reduce the activity or tone of the body part it serves |
olfactory nerve
nervii olfactorii
first cranial nerve | a collective term for numerous olfactory filaments in the nasal mucosa |
optic nerve
nervus opticus
second cranial nerve
optic tract | the cranial nerve that serves the retina |
oculomotor
oculomotor nerve
nervus oculomotorius
third cranial nerve | supplies extrinsic muscles of the eye |
trochlear
trochlear nerve
trochlearis
fourth cranial nerve | either of the two cranial nerves on either side that control the superior oblique muscles of the eyes |
trigeminal
trigeminal nerve
trigeminus
nervus trigeminus
fifth cranial nerve | the main sensory nerve of the face and motor nerve for the muscles of mastication |
abducent
abducent nerve
abducens
abducens nerve
nervus abducens
sixth cranial nerve | a small motor nerve supplying the lateral rectus muscle of the eye |
facial
facial nerve
nervus facialis
seventh cranial nerve | cranial nerve that supplies facial muscles |
acoustic nerve
auditory nerve
vestibulocochlear nerve
nervus vestibulocochlearis
eighth cranial nerve | a composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochlea |
glossopharyngeal nerve
nervus glossopharyngeus
ninth cranial nerve | sensory nerve to the pharynx and back of the tongue, motor fibers innervate muscles that elevate the pharynx and larynx, includes parasympathetic fibers to the otic ganglion |
vagus
vagus nerve
nervus vagus
pneumogastric
pneumogastric nerve
tenth cranial nerve
wandering nerve | a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera |
accessory nerve
spinal accessory
nervus accessorius
eleventh cranial nerve | arises from two sets of roots (cranial and spinal) that unite to form the nerve |
hypoglossal
hypoglossal nerve
nervus hypoglosus
twelfth cranial nerve | supplies intrinsic muscles of the tongue and other tongue muscles |
radial nerve
nervus radialis
musculospiral nerve | largest branch of the brachial plexus, extends down the humerus to the lateral epicondyle where it divides into one branch that goes to the skin on the back of the hand and another that goes to the underlying extensor muscles |
| splanchnic nerve | any of several nerves of the sympathetic part of the autonomic nervous system that innervate viscera and blood vessels |
solar plexus
coeliac plexus
plexus celiacus
abdominal nerve plexus | a large plexus of sympathetic nerves in the abdomen behind the stomach |
| stump | the part of a limb or tooth that remains after the rest is removed |
sciatic nerve
nervus ischiadicus | arises from the sacral plexus and passes about halfway down the thigh where it divides into the common peroneal and tibial nerves |
femoral nerve
nervus femoralis
anterior crural nerve | one of a pair of nerves that originate from lumbar nerves and supply the muscles and skin of the anterior part of the thigh |
saphenous nerve
nervus saphenus | a branch of the femoral nerve that supplies cutaneous branches to the inner aspect of the leg and foot |
phrenic nerve
nervus phrenicus | one of a pair of nerves that arises from cervical spinal roots and passes down the thorax to innervate the diaphragm and control breathing |
ulnar nerve
cubital nerve
nervus ulnaris | a nerve running along the inner side of the arm and passing near the elbow, supplies intrinsic muscles of the hand and the skin of the medial side of the hand |
spinal nerve
nervus spinalis | any of the pairs of nerves emerging from each side of the spinal cord (each attached to the cord by two roots: ventral and dorsal) |
| cervical nerve | any of eight pairs of spinal nerves emerging from the cervical section of the spinal cord |