Nervous system

Question 1

What are the major structures of the brain

Answer 1

Meaninges, Gray matter of the brain and spinal cord, basal ganglia, white matter of the brain and spinal cord, cerebrospinal fluid.

Question 2

Cerebum

Answer 2

Look at notes

Question 3

Meninges

Answer 3

Covers the brain and spinal cord, three layers are: Dura matter- the outermost layer. Arachnoid matter - dine delicate fibers and resembles a spider web. Pia matter - directly contacts the brain and spinal cord

Question 4

Gray matter of the brain and spinal cord

Answer 4

consists of neuron cell bodies and unmylinated axons, form gyri (folds) and sucli of the cerebral cortex

Question 5

Basal ganglia

Answer 5

gray matter nuclei embedded deep in hemispheres, primary involved in motor control, also involved in motor learning, higher level cognitive skills behavior and emotions

Question 6

White matter of the brain and spinal cord

Answer 6

consists of mylinated axons, connect of the different regions of the brain, the corpus callosum is a primary connecting bundle of white matter between the left and right brain hemisphere, association tracts connect areas in the same hemisphere, projection tracts connect the cortex with the spinal cord, commissural tracts connect the left and right hemispheres

Question 7

Cerebrospinal fluid

Answer 7

Produced by specialized ependymal cells of the choroid plexus within the ventricles of the brain, cushions and protects the brain and spinal cord, monitors the central nervous systems internal environment. Located in the subarachnoid space

Question 8

What is meningitis

Answer 8

An inflammation of the tissues around the brain and spinal cord.
Fever, stiff neck, headache, confusion, and light sensitivity

Question 9

What is Alzheimer

Answer 9

A neurodiginerative disease, caused by breakdowns of proteins between neurons, tau protein build up, chronic inflammation, vascular disease, and brain atrophy

Question 10

Parkinson disease

Answer 10

A neurodegenerative disease that causes stiffness, shaking and balance issues. caused by destruction of basal ganglia (produce dopamine)

Question 11

Cerebellum disease

Answer 11

Inability to preform alternating movements, dysmetria, upper limb imbalance, tremors, slurred speech and decreased muscle tone.

Question 12

What is lewy body dementia

Answer 12

neurodegenerative disease, lewy bodies form in the brainstem and cortex, they block production and transmission of dopamine,

Question 13

How are Lewy body, alzheimer’s and parkinson’s similar

Answer 13

alzheimer’s and Lewy body cause amyloid plaques and tau neurofibrillary, Parkinson’s and Lewy body cause motor dysfunctions