6 The Nervous System
6The NervousSystemLesson 6.1: Overview of the Nervous SystemLesson 6.2: Transmission of Nerve ImpulsesLesson 6.3: Functional Anatomy of the CentralNervous SystemLesson 6.4: Functional Anatomy of the PeripheralNervous SystemLesson 6.5: Injuries and Disorders of theNervous System
Chapter 6: The Nervous SystemLesson 6.1Overview of theNervous System
Nervous System Overview organization of the nervous system– two major divisions– the efferent nerves nervous tissues– neuroglia– neurons Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Organization of the Nervous System two major divisions– central nervous system (CNS)– peripheral nervous system (PNS) sensory receptors afferent (sensory) nerves efferent (motor) nerves Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Two Major Divisions Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
The Efferent Nerves somatic nervous system– voluntary autonomic nervous system– involuntary– sympathetic– parasympathetic Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Nervous Tissues neuroglia– also known as glial cells– support the neurons– protect the neurons neurons– transmit nerve impulses Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Neuroglia central nervous odendrocytes Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Neuroglia peripheral nervous system– Schwann cells– satellite cells Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Neurons dendrites– send information to cell body cell bodies axons– send information away from cell body Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Neuron Types by Function sensory neurons– send impulses toward CNS motor neurons– send impulses away from CNS interneurons– bridges between neurons Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Neuron Structures bipolar– one axonand onedendrite unipolar– one axon Goodheart-Willcox Co., Inc. multipolar– one axonand manydendritesPermission granted to reproduce for educational use only.
Review and AssessmentMatch these words with 1–4 below: sympatheticnervous system, myelin, synapse, axon.1. high alert2. transmits impulses away from cell body3. fatty insulating material4. gap between neurons Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Chapter 6: The Nervous SystemLesson 6.2Transmission ofNerve Impulses
Transmission of Nerve Impulses action potentials– change in cell membrane charge impulse transmission– charge change travels along axon reflexes– involuntary response to stimulus Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Action Potentials polarizeddepolarizedrepolarizedrefractory period Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Impulse Transmission saltatory conduction transmission at synapses––––gap junctionsneurotransmitterexcitatory effectinhibitory effect Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Impulse Transmission saltatory conduction transmission at synapses––––gap junctionsneurotransmitterexcitatory effectinhibitory effect Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Reflexes somatic– stimulate skeletal muscles autonomic– stimulate involuntary muscles Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Review and AssessmentFill in the blanks with: reflexes, saltatory conduction,neurotransmitter, or action potential.1. A(n) is an all or noneresponse.2. occurs only in myelinatedaxons.3. are rapid, involuntaryresponses.4. The axon terminal has tiny vesicles filled with. Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Chapter 6: The Nervous SystemLesson 6.3Functional Anatomy of theCentral Nervous System
The Brain cerebrumdiencephalonbrain stemcerebellummeningesblood-brain barrier Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Cerebrum cerebral cortex– gyrus– sulcus– fissure lobes––––frontalparietaloccipitaltemporal primary motor cortex primary somatic sensory cortex Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Cerebrum Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Cerebrum Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Cerebrum Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Diencephalon thalamus hypothalamus epithalamus Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Brain Stem midbrain pons medulla oblongata Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
The Brain cerebellum blood-brainbarrier Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
The Brain cerebellum blood-brain barrier meninges– dura mater– arachnoid mater– pia mater Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Spinal Cord Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Review and AssessmentTrue or False?1. The gyri divide the brain into 4 regions.2. The hypothalamus regulates blood pressure.3. The meninges has 3 layers.4. The cerebellum coordinates balance.5. The pons is also called the interbrain. Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Chapter 6: The Nervous SystemLesson 6.4Functional Anatomyof the PeripheralNervous System
Functional Anatomy of the PeripheralNervous System nerve structurecranial nervesspinal nerves and nerve plexusesautonomic nervous system Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Nerve Structure endoneurium– covers axons perineurium– bundles fascicles epineurium– wraps nerves Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Cranial Nerves Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Cranial Nerves Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Spinal Nerves and Nerve Plexuses 31 pairsdorsal rootventral rootdorsal ramusventral ramusplexuses Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Autonomic Nervous System preganglionic and postganglionic neurons sympathetic nerves– fight-or-flight action parasympathetic nerves– resting or digesting action Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Autonomic Nervous System Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Review and AssessmentMatch these words with 1–4 below: efferent,ganglion, optic, perineurium.1. wraps fascicles2. motor3. a cranial nerve4. enlarged junction Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Chapter 6: The Nervous SystemLesson 6.5Injuries and Disorders ofthe Nervous System
Injuries to the Brain and Spinal Cord traumatic brain injury cerebral palsy spinal cord injury Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Traumatic Brain Injury violent impact to head– mild– moderate– severe Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Cerebral Palsy damage to brain– before birth– during birth– during infancy motor function impairment Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Spinal Cord Injuries C1–C3: usually fatalC1–C4: quadriplegiaC5–C7: paralysis of lower extremitiesT1–L5: paraplegiaCorepics/Shutterstock.com Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Common Diseases and Disorders of theCNS meningitismultiple sclerosisepilepsyParkinson’s diseasedementia and Alzheimer’s disease Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
Review and AssessmentMatch these words with 1–4 below: quadriplegia,multiple sclerosis, dementia, cerebral palsy.1. inflammation destroys myelin sheath2. loss of memory and thinking3. loss of function below the neck4. may begin before birth Goodheart-Willcox Co., Inc.Permission granted to reproduce for educational use only.
6 Lesson 6.1: Overview of the Nervous System Lesson 6.2: Transmission of Nerve Impulses Lesson 6.3: Functional Anatomy of the Central Nervous System Lesson 6.4: Functional Anatomy of the Peripheral Nervous System Lesson 6.5: Injuries and Disorders of the Nervous System The Nervous System
I. Central Nervous System vs Peripheral Nervous System II. Peripheral Nervous System A. Somatic Nervous System B. Autonomic Nervous System III. Autonomic Nervous System A. Parasympathetic Nervous System B. Sympathetic Nervous System IV. Reflex Actions V. Central Nervous Sys
May 02, 2018 · D. Program Evaluation ͟The organization has provided a description of the framework for how each program will be evaluated. The framework should include all the elements below: ͟The evaluation methods are cost-effective for the organization ͟Quantitative and qualitative data is being collected (at Basics tier, data collection must have begun)
Silat is a combative art of self-defense and survival rooted from Matay archipelago. It was traced at thé early of Langkasuka Kingdom (2nd century CE) till thé reign of Melaka (Malaysia) Sultanate era (13th century). Silat has now evolved to become part of social culture and tradition with thé appearance of a fine physical and spiritual .
On an exceptional basis, Member States may request UNESCO to provide thé candidates with access to thé platform so they can complète thé form by themselves. Thèse requests must be addressed to esd rize unesco. or by 15 A ril 2021 UNESCO will provide thé nomineewith accessto thé platform via their émail address.
̶The leading indicator of employee engagement is based on the quality of the relationship between employee and supervisor Empower your managers! ̶Help them understand the impact on the organization ̶Share important changes, plan options, tasks, and deadlines ̶Provide key messages and talking points ̶Prepare them to answer employee questions
Dr. Sunita Bharatwal** Dr. Pawan Garga*** Abstract Customer satisfaction is derived from thè functionalities and values, a product or Service can provide. The current study aims to segregate thè dimensions of ordine Service quality and gather insights on its impact on web shopping. The trends of purchases have
peripheral nervous system is subdivided into the a. sensory-somatic nervous system and the autonomic nervous system (ANS). The peripheral nervous system carry information to and from the central nervous system. The central nervous system is composed of the brain and spinal cord. Figure 1 The Human Nervous System
nervous system is separated into two major divisions: the central nervous system and the peripheral nervous system. The central nervous system is the control center of the body. The functions of the central nervous system are similar to those of the central processing unit of a computer. The central nervous system relays messages, processes .
