Please enable JavaScript.
Coggle requires JavaScript to display documents.
Ch. 8 Nervous System (Kahoots (The brain and spinal cord comprise the…
Ch. 8 Nervous System
Kahoots
-
The part of the peripheral nervous system that brings information to the central nervous system is the afferent division
-
The cytoplasmic extensions that, together with the cell body, provide the main receptive surfaces for neurons are dendrites
-
The myelin sheaths that surround the axons of some of the neurons in the CNS are formed by oligodendrocytes
-
-
-
-
The polarization of a nerve fiber refers to having the potassium ions inside the cell and sodium outside the cell
-
-
-
The all-or-none principle states that all stimuli great enough to bring the membrane to threshold will produce identical action potentials
-
-
-
-
-
parts of a reflex in order: receptor, sensory neuron, interneuron, motor neuron, effector
-
-
-
subarachnoid space contains a delicate network of collagen and elastin fivers through which CSF circulates
-
-
-
axons crossing from one side of the spinal cord to the other within the gray matter are found in the gray commisures
the white matter of the spinal cord contains bundles of axons that share common origins, destinations, and functions
-
-
-
-
-
-
8.2 Neurons & Neuroglia
General Structure of Neuron 1. cell body (gray matter) 2. dendrites 3. axon (white matter) 4. synaptic terminal
Structural classification 1. Multipolar neuron: two or more dendrites & axon 2. unipolar neuron: one dendrite & axon cell body off to side 3. Bipolar neurons: one dendrite & one axon cell body between them
-
-
-
-
-
-