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CHAPTER 10
NERVOUS SYSTEM
| Question | Answer |
|---|---|
| WHAT IS A NEURON | NERVOUS SYSTEM CELLS THAT CONDUCT IMPULSES -NERVE CELL |
| WHAT PART OF THE BRAIN JOINS FORCES WITH THE CEREBRAL CORTEX TO MONITOR BODY MOVEMENT AND SEND MESSAGES CRUCIAL FOR BALANCE CORDIATION AND POSTURE | THE CEREBELLUM |
| WHAT IS SYNAPTIC KNOB | VESSICLES CONTAINING NEUROTRANSMITTERS |
| THE CNS CONSISTS OF? | BRAIN AND SPINAL CORD |
| WHAT IS A SOMA | THE CONTROL CENTER OF THE NEURON AND CONTAINS THE NUCLEUS |
| A NERVE CELL IN WHICH PHASE CANNOT RESPOND TO A NEW STIMULI | REFRACTORY PERIOD |
| WHAT IS THE MYLIN SHEETH | INSULATES THE AXON CONSISTING OF LIPIDS |
| WHAT IS THE FUNCTION OF THE FRONTAL LOBE | GOVERNS VOLUNTARY MOVEMENTS-MEMORY,EMOTION,,SOCIAL JUDGMENT,DECISION MAKING-REASONING-AGGRESSION-ASSPECT OF ONES PERSONALITY |
| WHAT IS THE FUNCTION OF THE PARIETAL LOBE | RECIEVES AND INTERPRETS BODY SENSATIONS-TOUCH,TEMPERATURE,PRESSURE,PAIN, AWARENESS OF ONES BODY AND BODY PARTS IN SPACE AND RELATION TO EACHOTHER |
| WHAT IS THE FUNCTION OF THE TEMPORAL LOBE | GOVERNS HEARING, SMELL,LEARNING MEMORY,EMOTIONAL BEHAVIOR AND VISUAL RECOGNIZATON |
| WHAT IS THE FUNCTION OF THE OCCIPITAL LOBE | ANALYSING AND INTERPRETING VISUAL INFORMATION |
| WHAT IS NODES OF RANVIER | GAPS IN THE MYELIN SHEATH |
| WHAT DOES THE SENSORY (AFFERENT) DIVISION DO IN THE PERIPHERAL NERVOUS SYSTEM | CARRIES SIGNALS FROM NERVE ENDINGS TO THE CNS |
| WHAT DOES THE MOTOR (EFFERENT)DIVISON DO IN THE PERIPHERAL NERVOUS SYSTEM | TRANSMITS INFORMATION FROM CNS TO REST OF BODY |
| WHAT ARE NEUROGLIA CELLS | SUPPORTIVE CELLS OF THE NERVOUS SYSTEM ( GLIA MEANING GLUE WHICH BIND NEURONS TOGETHER |
| WHAT IS THE FUNCTION OF ASTROCYTES | FORMS (BBB) BLOOD BRAIN BARRIER ATTACH TO NEURONS TO BLOOD VESSELS FOR STRUCTURAL SUPPORT |
| WHAT DO THE SENSORY(AFFERENT)NEURONS DO | DECTECT STIMULI SUCH AS TOUCH, PRESSURE, HEAT, COLD OR CHEMICALS AND THEN TRANSMIT INFORMATION ABOUT THE STIMULI TO THE CNS |
| WHAT DO THE MOTOR (EFFERENT)NEURONS DO | RELAY MESSAGES FROM THE BRAIN WHICH EMITS IN RESPONSE TO STIMULI TO THE MUCSLE OR GLAND CELLS |
| WHAT IS THE FUNCTION OF A DENDRITE | RECIEVE SIGNALS FROM OTHER NEURONS AND CONDUCT THE INFORMATION TO THE CELL BODY. SOME HAVE ONE SOME HAVE THOUSANDS |
| WHAT IS THE CONTROL CENTER OF THE NEURON THAT CONTAINS THE NUCLEUS CALLED | SOMA ( CELL BODY) |
| WHAT DOES THE MYELIN SHEATH DO | INSULATES THE AXON |
| WHAT DOES THE SYNAPTIC KNOB DO | WITHIN THE SYNAPTIC KNOB ARE VESSICLES WHICH SECRETE NEUROTRANSMITTERS |
| WHAT IS THE REFRACTORY PERIOD | MEMBRANE IS POLARIZED BUT NA+ AND K+ ARE ON WRONG SIDES OF MEMBRANE |
| WHAT HAPPENS WHEN ACTION POTENTIAL REACHES A SYNAPTIC KNOB | THE MEMBRANE DEPOLARIZES AND CAUSES ION CHANNELS TO OPEN,WHICH ALLOWS CALCIUM IONS TO ENTER THE CELL |
| WHERE DO NERVES FROM THE CERVICAL REGION OF SPINAL CORD INNERVATE | THE CHEST,HEAD,NECK,SHOULDERS,ARMS,HANDS AND DIAPHRAGM |
| WHY IS THE GRAY MATTER CALLED GRAY? | CONTAINS MOSTLY THE CELL BODIES OF MOTOR NEURONS AND INTERNEURONS ARE GRAY BECAUSE OF A LACK OF MYELIN |
| WHY IS THE WHITE MATTER WHITE? | BECAUSE IT CONTAINS BUNDLES OF AXONS CALLED TRACTS THAT CARRY IMPULSES FROM ON PART OF THE NERVOUS SYSTEM TO ANOTHER THEY HAV E AN ABUNDANCE OF MYELIN WHICH MAKES IT WHITE |
| WHAT NERVE STIMULATES THE DIAPHRAGM FOR BREATHING | PHRENIC NERVE LOCATED C1 THROUGH C4 |
| WHAT ARE SOMATIC NERVES | REFLEXES ARE QUICK INVOLUNTARY PREDICTABLE RESPONSE THE STIMULUS-REFLEXES EMPLY A NEURAL CIRCUIT CALLED A RELEX ARC WHICH BYPASSES REGIONS OF THE BRAIN WHERE CONSCIOUS DECISIONS ARE MADE |
| WHAT THREE STRUCTURES MAKES UP THE BRAIN STEM | MID BRAIN-PONS-MEDULLA OBLONGATA |
| WHAT ARE THE FUNCTIONS OF THE CEREBELLUM | BALANCE COORDINATION AND POSTURE-PERFORM SMOOTH,EFFICIENT AND COORDINATED MOVEMENTS-EVALUATES SENSORY INPUT SUCH AS TOUCH, SPATIAL PERCEPTION AND SOUND |
| THE AXONS OF MANY BUT NOT ALL NEURONS ARE INCASED IN A | MYELIN SHEATH |
| WHAT PART OF THE BRAIN STORES INFORMATION NECESSARY FOR MUSCLE GROUPS TO WORK TOGETHER TO PERFORM SMOOTH, EFFICIENT AND COORDINATED MOVEMENTS | THE CEREBELLUM |
Created by:
nailsmary
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