Introduction to Neuroscience Flashcards
CNS IS COMPOSED OF
BRAIN AND SPINAL CORD
PNS IS COMPOSED OF
PERIPHERAL GANGLIA AND SENSORY RECEPTORS
AFFERENT IS
SENSORY
EFFERENT IS
MOTOR
AUTONOMIC NERVOUS SYSTEM IS
INVOLUNTARY
HOLLOW ORGAN OR VISCERA
SUPPLIES SMOOTH MUSCLE, CARDIAC MUSCLE AND GLANDS
DIVISIONS OF ANS
PARASYMPATHETIC
SYMPATHETIC
WHAT DOES THE SYMPATHETIC NERVOUS SYSTEM DO
SPEEDS UP REACTION
INVOLVED IN “FEELING”
WHAT DOES PARASYMPATHETIC NERVOUS SYSTEM DO
SLOWS DOWN REACTION
WHAT DOES THE AFFERENT SYSTEM DO
CONVEYS IMPULSES TOWARDS SPINAL CORD AND BRAIN
SENSORY
WHAT DOES THE EFFERENT SYSTEM DO
CONVEYS IMPULSES AWAY FROM SPINAL CORD AND BRAIN
MOTOR
HOW IS THE NERVOUS SYSTEM DIVIDED
- TOPOGRAPHICALLY
- DIRECTION OF IMPULSE
- NATURE OF INFORMATION AND NATURE OF ACTIVITY
WHAT DOES SOMATIC SYSTEM DO
DETERMINES RELATIONSHIP OF ANIMAL TO EXTERNAL ENVIRONMENT
PART OF PNS
VOLUNTARY CONTROL
- striated muscle
WHAT DOES VISCERAL SYSTEM DO
FUNCTIONS IN RELATION TO INTERNAL ENVIRONMENT
PART OF ANS
INVOLUNTARY:
- glands, CV and digestive
SOMATIC AFFERENT PATHWAY
ORGINATE FROM RECEPTORS IN THE EXTERNAL SURFACE OF BODY
carried by spinal nerves and CN 5
SPECIAL SOMATIC AFFERENT PATHWAY
RECEPTORS IN DEEPER SOMATIC TISSUES OF THE BODY
RESTRICTED ORIGION IN SPECIAL SENSE ORGANS
- retina of eye, cochlear and vestibular parts of inner ear
- carried by CN 2 and 8
PROPRIOCEPTION
DEEPER SENSATION
changes in angulation of joints, tension in muscles and tendons
VISERAL AFFERENT PATHWAY
ORIGINATE FROM RECEPTORS IN THE VISCERA OF HEAD AND TRUNK
- carried in all spinal nerves and CN 3, 5, 7, 9, 10
SPECIAL VISCERAL AFFERENT PATHWAY
CN 1 AND 7
SOMATIC EFFERENT PATHWAY
STRIATED MUSCLES
VISCERAL EFFERENT PATHWAY
SMOOTH MUSCLES, CARDIAC MUSCLES AND GLANDS
MOST ORGANS RECEIVE BOTH SYMPATHETIC AND PARASYMPATHETIC
NUCLEI/NUCLEUS
GROUPS OF NEURONS OF LIKE FUNCTION INSIDE THE CNS
GANGLI/GANGLION
GROUPS OF NERVE CELL BODIES OUT THE CNS
TRACKS
BUNDLE OF NERVE FIBERS OF COMMON ORIGIN, DESTINATION AND FUNCTION
STIMULUS
ENVIRONMENTAL CHANGE RECOGNIZED BY RECEPTOR ORGAN
RESPONSE
REACTION IN ANSWER TO STIMULUS BY EFFECTOR ORGAN
