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ANP
The Spinal Cord and Meninges
Question | Answer |
---|---|
The spinal cord gives rise to 31 pairs of | Spinal Nerves |
The bulge in the spinal cord that gives off nerves to the upper limbs is called the | Cervical enlargement |
The bulge in the spinal cord that gives off nerves to the lower limbs is called the | Lumbar enlargement |
The (BLANK) is a groove that extends the length of the spinal cord posteriorly. | Posterior Median Sulcus |
In a spinal cord cross section, the posterior (BLANK) of the gray matter resemble the upper wings of a butterfly. | Horns |
The cell bodies of motor neurons are found in the (BLANK) horns of the spinal cord. | Anterior |
The (BLANK) connects the gray matter on the left and right sides of the spinal cord. | Gray Commissure |
The (BLANK) in the gray commissure of the spinal cord contains cerebrospinal fluid and is continuous with the ventricles of the brain. | Central Canal |
The white matter of the spinal cord is divided into anterior, lateral, and posterior | Funiculus |
The longitudinal bundles of nerve fibers within the spinal cord comprise major nerve pathways called | Nerve tracts |
Ascending tract to the brain to interpret touch, pressure, and body movements. | Fasciculus gracilis |
Descending tract whose fibers conduct motor impulses to sweat glands and muscles to control tone | Reticulospinal |
Descending tract whose fibers conduct motor impulses to skeletal muscles | Corticospinal |
Ascending tract to the cerebellum necessary for coordination of skeletal muscles | Posterior spinocerebellar |
Ascending tract to the brain to give rise to sensations of temperature and pain | Lateral spinothalamic |
Band of pia mater that anchors dura mater to cord | Denticulate Ligament |
Channel through which venous blood flows | Dural sinus |
Outermost layer of meninges | Dura mater |
Follows irregular contours of spinal cord surface | Pia mater |
Contains cerebrospinal fluid | Subarachnoid space |
Thin, web like middle membrane | Arachnoid mater |
Separates dura mater from bone of vertebra | Epidural space |