Ventricles and Meninges

Ventricles= expansions of the brain’s central cavity Filled with CSF, lined with ependymal cells Continuous with each other, central canal, and spinal cord 1st/2nd= paired lateral ventricles (lie in cerebral hemispheres) [separated by septum pellucidum– transparent wall] 3rd ventricle lies within diencephalon [connected to each lateral ventricles by interventricular foreamen] In midbrain is central cavity…

Diencephalon: Thalamus, Hypothalamus, Epithalamus

Diencephalon: forms central core of forebrain, surrounded by cerebral hemispheres. Made of 3 paired structures: 1) thalamus, hypothalamus, and epithalamus. Thalamus: egg-shaped (known as inner room) has midline connection called interthalamic adhesion ***EVERY part of the brain that communicated with the cerebral cortex must relay its signals through a nucleus of the thalamus. Hypothalamus: inferior…

Hypochondria: Symptoms & Treatment

Psychiatrist Berney Goodman, writes, “Hypochondria is an emotional disorder involving unremitting fears of illness and somatization symptoms that last for more than six months and cause significant disability” (34).  Hypochondria are much more psychological and people who suffer from don’t realize the disease is, as many may inaccurately describe it, “all in their heads.”  Hypochondria…

Conservation Biology

As the human population has grown, and our use of resources has increased, we have destroyed the habitat of many species. A biodiversity crisis has developed. The Red List of Threatened Species, compiled by the World Conservation Union, lists 16,913 species as threatened with extinction. Conservation biology—the scientific study of phenomena that affect the maintenance,…