{"id":133,"date":"2015-08-07T17:01:45","date_gmt":"2015-08-07T17:01:45","guid":{"rendered":"http:\/\/sites.msudenver.edu\/haysc\/?page_id=133"},"modified":"2015-08-10T23:34:30","modified_gmt":"2015-08-10T23:34:30","slug":"outline-3-bio-2310-nervous-tissue","status":"publish","type":"page","link":"https:\/\/sites.msudenver.edu\/haysc\/biology-courses\/human-anatomy-physiology-homepage-bio-2310\/outline-3-bio-2310-nervous-tissue\/","title":{"rendered":"Outline-3, BIO 2310, Nervous Tissue"},"content":{"rendered":"

I.\u00a0<\/strong>INTRODUCTION<\/strong><\/p>\n

A. Overall function<\/p>\n

1. Sensory {senses changes}<\/p>\n

2. Integrates {interprets info.}<\/p>\n

3. Motor {responds to info.}<\/p>\n

B. Organization<\/p>\n

1.\u00a0Central Nervous System<\/strong><\/p>\n

a. Brain<\/p>\n

b. Spinal cord<\/p>\n

2.\u00a0Peripheral Nervous System<\/strong><\/p>\n

a. Definition<\/p>\n

b.\u00a0Afferent System (sensory)<\/strong><\/p>\n

1. Somatic<\/p>\n

Surface of body<\/em><\/p>\n

2. Visceral<\/p>\n

Internal<\/em><\/p>\n

c. Efferent System (motor)<\/strong><\/p>\n

1. Somatic<\/p>\n

To skeletal muscles<\/em><\/p>\n

2. Visceral =Autonomic Nervous System<\/strong><\/p>\n

To smooth muscle, cardiac muscle, glands<\/em><\/p>\n

a. Parasympathetic<\/p>\n

Rest &\u00a0digest<\/em><\/p>\n

b. Sympathetic<\/p>\n

Fight or flight<\/em><\/p>\n

II. NERVOUS TISSUE<\/strong><\/p>\n

A.\u00a0Neuron<\/strong><\/p>\n

= Nerve cell<\/em><\/p>\n

1. Cell body<\/strong><\/p>\n

a. Nuclei<\/strong><\/p>\n

Groups of cell bodies in CNS<\/em><\/p>\n

b. Ganglia<\/strong><\/p>\n

Groups of cell bodies in PNS<\/em><\/p>\n

2. Cytoplasmic Processes<\/p>\n

a. Dendrite<\/strong><\/p>\n

Receptive end<\/em><\/p>\n

b. Axon<\/strong>(nerve fibers)<\/p>\n

Conducting end<\/em><\/p>\n

B. Nerve\u00a0<\/strong>Bundle of axons in PNS<\/em><\/p>\n

C. Structural Classification<\/p>\n

1. Bipolar<\/p>\n

Two cytoplasmic extensions, one dendrite and one axon. e.g. nervous layer of retina<\/em><\/p>\n

2. Multipolar<\/p>\n

Many extensions, one axon and numerous dendrites. e.g. motor neurons<\/em><\/p>\n

3. Unipolar<\/p>\n

“T” shaped extensions that branch into dendrite and axon. e.g. sensory neurons<\/em><\/p>\n

D. Neuroglia<\/p>\n

“Nerve glue”, supporting and protecting tissue<\/em><\/p>\n

1. Schwann Cells<\/strong><\/p>\n

PNS<\/em><\/p>\n

a. Myelin<\/strong><\/p>\n

1. White matter<\/p>\n

2. Function<\/p>\n

Insulate and greatly speed up rate of nerve impulse transmission<\/em><\/p>\n

b. Nodes of Ranvier<\/strong><\/p>\n

Gaps in myelin sheath<\/em><\/p>\n

2. Regeneration of axons [1-5 mm\/day]\n

Possible due to Schwann cells providing structural scaffold. Slow process.<\/em><\/p>\n

3. Oligodendrocytes<\/strong><\/p>\n

Myelin production in CNS<\/em><\/p>\n

4. Astrocytes<\/strong><\/p>\n

Maintenance of blood brain barrier<\/em><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

I.\u00a0INTRODUCTION A. Overall function 1. Sensory {senses changes} 2. Integrates {interprets info.} 3. Motor {responds to info.} B. Organization 1.\u00a0Central Nervous System a. Brain b. Spinal cord 2.\u00a0Peripheral Nervous System a. Definition b.\u00a0Afferent System (sensory) 1. Somatic Surface of body … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":270,"featured_media":0,"parent":42,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"class_list":["post-133","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/pages\/133","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/users\/270"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/comments?post=133"}],"version-history":[{"count":0,"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/pages\/133\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/pages\/42"}],"wp:attachment":[{"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/media?parent=133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}