Nervous System I Flashcards
I. Nerve Tissue (parts)
A. Cell types
B. Neuronal Morphology
C. Glial Properties
Nervous Systems I
I. Nerve Tissue
II. Nervous System Organization
I. Nerve Tissue
A. Cell Types
- Neurons: >10^11 (generate electrical signaling) in primates
- Glia: 2*10x to the number of primates
- provide insulation and nutrients
- affect neuronal signaling
Neurons
> 10^11
generate electrical signaling
in primates
Glia
2*10x the number of primates
- provide insulation & nutrients
- affect neuronal signaling
I. Nerve Tissue
B. Neuronal Morphology (parts)
- General Diagram
- synapse, axon, presynaptic terminal, nucleus soma, dendrites (receives input from synapses) - Structural Diversity
I. Nerve Tissue
C. Glial properties (parts)
- Pervasiveness
2. Glial Types
Glial Types:
-Astrocytes, oligodendrocyte, microglia, schwann cells, ependymal cells, ventricle glia
II. Nervous System Organization (parts)
A. Invertebrates B. Vertebrates C. Functional Hierarchy D. Brain Structure E. Peripheral Nervous System (PNS) Hierarchy
II. Nervous System Organization
A. Invertebrates
Figure 38.2 Nervous System Organization
II. Nervous System Organization
B. Vertebrates (parts)
- Central Nervous System (CNS)
2. Peripheral Nervous System (PNS)
Central Nervous System (CNS)
brain & spinal cord
Peripheral Nervous System
Autonomic Nervous System and projection nerves (cranial, spinal)
Figure 38.4 the vertebrate nervous system
II. Nervous System Organization
C. Functional Hierarchy
(overview of information processing)
Figure 37.4 Summary of Information Processing
II. Nervous System Organization
D. Brain Structure
-white matter: axons wrapped in myelin (white)
-gray matter: cell bodies & synapses (connections), & dendrites
➡️sites for information processing
Figure: Brain structure- ventricle, gray matter, & white matter