Psb Study Guide-72 Questions With Complete Solutions

PSB STUDY GUIDE-72 QUESTIONS WITH COMPLETE SOLUTIONS The somatic nervous system includes what? - CORRECT ANSWER SPINAL NERVESINNERVATING (SUPPLYING) SKIN, JOINTS, STRIATED MUSCLE DORSAL ROOT- SENSORY AFFERENTS ENTER CORD -SOMAS OUTSIDE CORD, IN DORSAL ROOT GANGLIA VENTRAL ROOT- MOTOR EFFERENTS EXIT CORD -SOMAS IN VENTRAL HORN What is the relative position of grey and white matter in the spinal cord? - CORRECT ANSWER GREY MATTER IS LOCATED IN THE CENTER OF THE SPINAL CORD AND IS DEEP TO THE WHITE MATTER GREY- CENTRALLY WHITE- PERIPHERALLY Give several examples of consequences of parasympathetic activation? - CORRECT ANSWER Rest and digest • Calms body to conserve and maintain energy • Release acetylcholine • ↓ heart rate and blood pressure • Stimulates digestion In terms of its position on his body, the top of a dog's head is _______ in anatomical terms compared to the bottom of the dogs head. - CORRECT ANSWER DORSAL A group of axons traveling together within the brain is called a _________? - CORRECT ANSWER TRACT How many distinct layers are observed in the human cortex? - CORRECT ANSWER SIX The ventricular system contains what? - CORRECT ANSWER CEREBROSPINAL FLUID (CSF) MADE IN CHOROID PLEXUS IN LATERAL VENTRICLES What kind of information is carried by the ventral roots of the spinal cord? - CORRECT ANSWER EFFERENT, MOTOR FIBERS AWAY FROM THE SPINAL CORD AND OUT TO THE BODY The ___ lobe is the most anterior portion of the cerebral cortex. - CORRECT ANSWER FRONTAL A cut in the ______ plane would sever all of the tracts that connect the left and right cerebral hemispheres. - CORRECT ANSWER MIDSAGITTAL The central sulcus divides the _______ and _______ lobes - CORRECT ANSWER FRONTAL AND PARIETAL The _______ is the main source of communication between the left and the right hemispheres. - CORRECT ANSWER CORPUS CALLOSUM The brainstem consists of the __, ____, and ___. - CORRECT ANSWER MEDULLA, PONS, MIDBRAIN Almost all incoming sensory information passes through the _______, which sends the information on to the overlying cortex. - CORRECT ANSWER THALAMUS Tissues originating from ectoderm include (any one) ___ - CORRECT ANSWER SKIN, NAILS, HAIR SUPERFICIAL GLANDS, NERVOUS SYSTEM, MUCOUS MEMBRANE_. A collection of neuronal cell bodies located inside the CNS is called a ___ - CORRECT ANSWER NUCLEUS