Ch 3: The Brain

Views:
 
Category: Education
     
 

Presentation Description

No description available.

Comments

Presentation Transcript

Slide 1: 

The Systems, Structures, and Cells That Make Up Your Nervous System Chapter 3 The Anatomy of the Nervous System

The Spinal Cord : 

The Spinal Cord Gray matter – inner component, primarily cell bodies White matter – outer area, mainly myelinated axons Dorsal – afferent, sensory Ventral – efferent, motor

The Spinal Cord (continued) : 

The Spinal Cord (continued) Dorsal and ventral roots Spinal cross section

The Five Major Divisions of the Brain : 

The Five Major Divisions of the Brain Early develop- ment of the mammalian brain

The Five Major Divisions of the Brain (continued) : 

The Five Major Divisions of the Brain (continued) The divisions of the adult human brain

Major Structures of the Brain : 

Major Structures of the Brain Myelencephalon = medulla Composed largely of tracts Origin of the reticular formation Metencephalon Many tracts Pons – ventral surface Cerebellum – coordination

Slide 7: 

Structures of the human myelencephalon (medulla) and metencephalon Major Structures of the Brain

Slide 8: 

Major Struc- tures of the Brain (continued) The human mesencephalon (midbrain)

Slide 9: 

(continued) Major Structures of the Brain The human diencephalon

Telencephalon – Cerebral Cortex : 

Telencephalon – Cerebral Cortex Convolutions serve to increase surface area Longitudinal fissure – a groove that separates right and left hemispheres Corpus callosum – largest hemisphere-connecting tract

Slide 11: 

Major fissures of the cerebral hemispheres Lobes of the cerebral hemispheres

Telencephalon – Subcortical Structures : 

Telencephalon – Subcortical Structures Limbic system – regulation of motivated behaviors Mammillary bodies, hippocampus, amygdala, fornix, cingulate, septum Basal ganglia motor system Amygdala, striatum (caudate nucleus + putamen), globus pallidus

Slide 13: 

The major structures of the limbic system Telencephalon – Subcortical Structures

Slide 14: 

The basal ganglia Telencephalon – Subcortical Structures

Slide 15: 

Summary of major brain structures

Daily Quiz 3 : 

Daily Quiz 3 Describe the overall layout of the divisions and systems of the mammalian nervous system. Include a table in your answer. (Hint "The mammalian nervous system is a system of twos." )

Daily Quiz 3 : 

Daily Quiz 3 50% for a description of the organization 50% for an accurate table