Impulse
Tree-like structure that received information from a stimulus.
What are dendrites?
Consists of the brain and spinal cord.
What is the central nervous system?
These receptors respond to temperature changes.
What are mechanoreceptors?
Specialized cells that make up the myelin sheath (2)
What are schwann cells and oligodendrocytes?
Responsible for coordinating movements so they are graceful and efficient, aids in muscle memory.
What is the cerebellum?
Sodium rushes into the neuron, reversing the charge causing depolarization.
What is action potential?
Sends impulses from the senses to the brain.
What is the sensory division?
These receptors are all over our body and respond to touch or movement.
What are mechanoreceptors?
These make up 90% of all nerve cells.
What are neuroglia?
The brain stem is made up of these 3 parts.
What are the midbrain, pons, and medulla oblongata?
Happens when the impulse travels the length of the axon and potassium rushes out of the neuron.
What is repolarization?
The efferent division of nervous system, it sends impulses to the muscles and glands.
What is the motor division?
Special Senses (4)
What are sight, smell, hearing, and taste?
These make up the three layesr of the meninges.
What is the hypothalamus?
The refractory period that happens when sodium/potassium channels restore balance and charges.
What is resting potential?
Responsible for voluntary muscle control and involuntary muscle control. (in order)
What is the somatic and autonomic systems?
What are vibrations from sound waves?
Cushions the brain and helps to prevent infection.
What is cerebral spinal fluid?
Connects the hemispheres of the cerebrum.
What is the corpus collosum?
Needed for a nerve impulse to travel from one neuron to the next, passing through the synaptic cleft.
What are neruotransmitters?
Specialized photoreceptors that sense light and color. (in that order)
What are rods and cones?
Neuroglia that circulate cerebral spinal fluid (CSF)
What are ependymal cells?
Name the 4 lobes of the cerebrum and their function.
What is...
Frontal-reasoning and decision making, memory, voluntary movements
Parietal-sensations, spatial awareness
Temporal-memory, comprehension, speech, emotional association of memories
Occipital- visual processing, vision and memory of objects