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One of four major portions of the cerebral cortex (frontal, parietal, temporal, and occipital) named after the overlying cranial bones.

►click here to learn more(press>dog brain>dorsal view)-link provided by: University of Pennsylvania, School of Veterinary Medicine

►click here to learn more-link provided by: University of Minnesota, College of Veterinary Medicine

Related Words

cerebral cortex ; cranial ; frontal lobe ; occipital lobe ; parietal lobe ; temporal lobe

longitudinal fissure

The deep groove which separates the two hemispheres of the brain; also called sagittal sulcus.

►click here to learn more(>dog brain>dorsal view)-link provided by: University of Pennsylvania, School of Veterinary Medicine

Related Words

brain ; cerebral hemisphere ; sagittal ; sulcus


Abnormal extension of the vertebral column, especially in the thoracolumbar region; can result in "dropped-back" appearance.

Related Words
lumbar  ;  thorax  ;  vertebral column

lower motor neuron

Peripheral motor neurons whose cell bodies lie in the ventral gray columns of the spinal cord and whose terminations are in skeletal muscles. 

Related Words

cell body ; gray matter ; motor neuron ; peripheral nervous system (PNS) ; spinal cord

lower motor neuron disease

Disease of the peripheral nervous system, muscle or neuromuscular junction.  Signs include muscle hypotonia and muscle atrophy.

Related Words

atrophy  ;  hypotonia  ;  neuromuscular junction  ;  peripheral nervous system (PNS)  ;  sign


The part of the back between the thorax and pelvis; dogs and cats have 7 lumbar vertebrae.

Related Words

thorax  ;  vertebra


lumbosacral spine

The lumbar and sacral part of the spine.

Related Words
lumbar  ;  sacrum  ;  spine

lumbosacral stenosis

Narrowing of the spinal canal causing the intervertebral disk between the most caudal lumbar vertebra and the sacrum to bulge and compress the nerve roots (they resemble the tail of a horse) which occupy the canal below the spinal cord; compression could lead to signs such as back pain, paresis;  also called cauda equina syndrome.


Related Words

caudal ; intervertebral disk ; lumbar ; nerve root ; paresis ; sacrum ; spinal canal ; spinal cord ; vertebra


Dislocation of an anatomical structure, e.g. vertebrae, eye lens, patella (i.e. kneecap).

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lyme disease

See borreliosis.

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