ANSC 423 exam one PSU Spring 2014 || with Error-free Solutions.

action potentials generated by the photo-receptors in response to incident light are carried to the brain by: correct answers optic nerve physiological functions of cells are carried out by reversible changes in protein shape by the following (3) correct answers - covalent modification such as phosphorylation -changes in voltage or pH - ligand binding failure of the sodium/potassium ATPase pump in neurons will result in: correct answers - insensitivity and failure to generate or conduct action potentials corticospinal fluid is synthesized and secreted by correct answers choriod plexus presence of transporters in the cell membrane is not required to transport one or more of the following substances from the extracellular fluid into the cytoplasm correct answers carbon dioxide saltatory conduction of action potential in myelinated axons occursat correct answers nodes of ranvier cerebellum processes information to control the following (3) correct answers - motor planning and coordination - balance and eye movement - motor execution identidy glial cells (3) correct answers - astrocyte - oligodendrocyte - schwann cells simple diffusion of substances from extracellular fluid into the cytoplasm depends on: correct answers concentration gradient of or differences of the substances across the cell membrane identify the gas that acts as neurotransmitter correct answers nitric oxide the functions of alpha motor neurons present in the ventral horn of the spinal cord gray matter is/are: correct answers - contract skeletal muscles myelin basic protein that wraps around myelinated axons is produced by: correct answers schwann cell identify the functions of meninges in the central nervous system correct answers protection of brain and spinal cord