23 Questions
What is the characteristic of the nucleus of a neuron?
Large, spherical, and euchromatic
What is the primary function of dendrites in neurons?
Receiving stimuli from the environment and other neurons
Which type of neuron has one dendrite and one axon?
Bipolar neuron
What is the function of glial cells in the central nervous system?
Supporting and protecting neurons, participating in neural activity and nutrition
What is the characteristic shape of dendrites in neurons?
Short and branched like a tree
What is the term for neurons that have one axon and two or many dendrites?
Multipolar neurons
What is the primary function of the neuron in the nervous system?
Receiving, transmitting, and processing stimuli
What are the two main divisions of the nervous system?
Central nervous system and peripheral nervous system
What is the primary component of the central nervous system?
Brain and spinal cord
What is the function of glial cells in the nervous system?
Supporting and assisting neurons
What is the structure of a neuron that receives stimuli?
Dendrites
What is the term for the entire network of nerve cells and glial cells in the human body?
Nervous system
What is the characteristic of the brain and spinal cord?
They are soft and gel-like organs
What is the distribution of white and gray matter in a cross-section of the spinal cord?
White matter is peripheral and gray matter is internal
What is the function of ganglia in the PNS?
To transmit nerve impulses
What is the difference between sensory and autonomic ganglia?
Sensory ganglia transmit sensory information, while autonomic ganglia regulate involuntary functions
What is the structure that surrounds ganglia?
Connective tissue
What type of glial cells forms a myelin layer around axons in the PNS?
Schwann cells
What is the function of the myelin sheath in nerve fibers?
To facilitate the transmission of nerve impulses
What is the term for the gaps between adjacent Schwann cells in myelinated nerve fibers?
Node of Ranvier
What type of nerve fibers are more abundant in the CNS?
Unmyelinated nerve fibers
What are the three connective tissue layers that enclose axons and Schwann cells in nerves?
Epineurium, Perineurium, Endoneurium
What is the main structure of the CNS that is located in the vertebral canal?
Spinal cord
Explore the human nervous system and its components, including neurons and glial cells. Learn about the complex network of interconnections and communication processes in this biology lab.
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