The white matter of the spinal cord contains tracts that provide and recieve information to and from the brain. What is the function of the ascending tracts and descending tracts?
ascending travels toward the brain - sensory
descending travels away from the brain - motor
Which ascending (sensory) tract of the spinal cord has the function of: pain, temperature, and crude touch to the opposite side?
Which ascending (sensory) tract of the spinal cord has the function of: crude touch and pressure?
Which ascending (sensory) tract of the spinal cord has the function of: discriminating touch and pressure sensations?
Which ascending (sensory) tract of the spinal cord has the function of: unconscious kinesthesia?
Anterior and posterior spinocerebellar
What lies in the longitudinal fissure and separates the cerebral hemispheres?
What separates the occipital lobe of the cerebrum and the cerebellum?
What separates the two lobes of the cerebellum?
contains occipital sinus
What is the epidural space?
over the dura matter
epidermal hematoma = accumulation of blood from a torn meningeal artery
What is the subdural space?
a closed space between the dura matter and the arachnoid membrane
often the site of hemorrhage after head trauma, associated vessel is the bridging vein
What is the associated vessel in a subarachnoid hemorrhage?
Circle of Willis
What CN's arise in the pons?
- Trigeminal - CN V
- Abducens - CN VI
- Facial - CN VII
What CN's are attached to the medulla oblongata?
- Glossopharyngeal - CN IX
- Vagus - CN X
- Spinal Accessory - CN XI
- Hypoglossal - CN XII
9 - 12
What in the midbrain helps to control movement, a lession of it will cause Parkinson's Disease?
What part of the brain serves as an exit tract for CN V?
What area in the medulla oblongata, is involved in regulating sleep and arousal, pain perception, and includes vital centers that regulate breathing and heart activity?
central core of gray matter
Where are the inferior and superior sagittal sinuses found?
What contains the straight, transverse, and superior petrosal sinuses?
What is the thin, wrinkled gray matter covering each cerebral hemisphere?
What layer of the cerebrum is a thick core of white matter?
What is the function of the cerebellum?
control of movement and balance
What lines most of the ventricular system of the CNS?
What cells provide structural support in the CNS?
What are modified ependymal cells that form the inner layer of the choroid plexus, and secrete CSF into the ventricles?
What support cell bodies in ganglia within the PNS?
What is the NT of preganglionic sympathetic neurons?
In which system of the ANS are the preganglionic neurons relatively short and the postganglionic axons relatively long?
What is the NT of the postganglionic sympathetic axons?
NE except for adrenal medulla and sweat glands
What nerves is the parasympathetic system dervided from?
- CN III
- CN VII
- CN IX
Through what opening do the lateral ventricles communicate with the 3rd ventricle?
interventricular foramen (foramen of Monro)