PNS and other stuff
Cells that surround and support neurons in PNS. Not fully understood.
What are satellite cells?
Star shaped cells that form the blood-brain barrier, also support neurons by providing nutrition
What are astrocytes?
The cell body of a neuron
What is the soma?
Made up of the pia mater, arachnoid, and dura mater layers
What are the meninges?
The junction between neurons
What is a synapse?
Type of neurons that carry information to CNS
What is sensory or afferent nerves?
Cells of the CNS that support neurons and form myelin sheaths.
What are Oligodendrocytes?
Primary area for receiving information on a neuron
What are the dendrites?
Name the lobes of the cerebrum (need all)
What are the frontal, parietal, temporal, and occipital?
Termed the emotional brain
What is limbic system
Myelin forming cells of the PNS
What are Schwann cells?
This part of the brain is known as the relay station for incoming and outgoing information
What is the thalamus?
Specialized fiber that can carry action potentials away from the cell body
What is an axon?
Skeletal muscles are controlled by
What is the cerebellum?
Chemical secreted across synapses
What is a neurotransmitter?
The structure that connects the left and right hemispheres of the brain
What is the corpus collosum?
Phagocytic macrophage cells of the CNS.
What are microglia?
Insulating layer that often wraps axons to speed up action potentials.
What is myelin sheath?
Pons, midbrain, and medulla oblongata make up
What is the brainstem?
A stimulus crosses a neuron's threshold causing this to occur
What is an action potential?
Structure near the center of the brain made up of densely packed neurons. Functions in motor movements, learning, emotional processing, and is involved in connecting other brain signals
What is basal nuclei or basal ganglia?
A major function of this part of the brain is to maintain the body's homeostasis. It partially accomplishes this by connecting the brain to the endocrine system.
What is the hypothalamus?
Specialized areas on an axon that are not myelinated
What are the nodes of Ranvier?
The cerebral cortex of the brain controls this function.
What is higher mental processing?
The largest brain can be found in what animal?
What is the sperm whale?