The subarachanoid space lies between the arachnoid and pia mater. It is filled with cerebrospinal fluid. All blood vessels entering the brain, as well as cranial nerves pass through this space. The term arachnoid refers to the spider web like appearance of the blood vessels within the space.
Why do biologists organize living things into groups? What do the levels of classification indicate about the relationship between organisms? What characteristics are used to classify organisms into domains and kingdoms? What is the scientific study of how living things are classified called? Taxonomy
Aerodynamics: the study of the motion of gas on objects and the forces created / Anatomy: the study of the structure and organization of living things / Anthropology: the stud â¦ y of human cultures both past and present / Archaeology: the study of the material remains of cultures / Astronomy: the study of celestial objects in the universe / Astrophysics: the study of the physics of the universe / Bacteriology: the study of bacteria in relation to disease / Biochemistry: the study of the ...