$100 $200 $300 $ $200 $300 $400 $500 Parts of a Neuron Org of NS Reflexes Action Potential Areas of the Brain 1 Areas of the Brain 2. Nervous System Jeopardy $100 Buster Brain
Part of a neuron that receives a stimulus
What are dendrites?
Part of a neuron that carries messages away from the cell
What is an axon?
Substance released by axon terminal that triggers a nerve impulse
What is a neurotransmitter?
Point at which an impulse from one nerve cell is communicated to another nerve cell
What is synapse?
Axons covered with this material appear white and conduct impulses faster than axons not covered with this material
What is the myelin sheath?
Division of the nervous system that consists of brain and spinal cord
What is the CNS or central nervous system?
Division of the nervous system that consists of cranial and spinal nerves
What is the PNS or peripheral nervous system?
Division of the nervous system that is not under voluntary control and includes sympathetic and parasympathetic nervous systems
What is the autonomic nervous system?
Division of the PNS that is under voluntary control
What is the somatic nervous system?
Division of the autonomic nervous system that is known as “rest and digest”
What is the parasympathetic nervous system?
In a reflex arc, muscles and glands are known as ________.
What are effectors?
Sensory neurons are also called _________ neurons.
What is afferent?
Motor neurons are also called __________ neurons.
What is efferent?
The first step in a reflex arc, could be sense organs.
What are receptors?
Middle step in a reflex arc, between afferent and efferent neurons
What is the integration center?
LOBE of the brain that is associated with memory, emotions, and decision- making, contains primary motor cortex
What is the frontal lobe?
LOBE of the brain that integrates sensory information and spatial awareness
What is the parietal lobe?
Part of the brain that regulates temperature, thirst, hunger and other drives
What is the hypothalamus?
Deep groove that divides the frontal and parietal lobes
What is the central sulcus?
Large fiber tract that joins the two cerebral hemispheres and allows communication between them
What is the corpus callosum?
LOBE that processes, integrates and interprets visual information
What is the occipital lobe?
LOBE for hearing, language and speech
What is the temporal lobe?
Groove that separates the two cerebral hemispheres
What is the longitudinal fissure?
Part of the brain stem that regulates breathing
What is the pons?
Areas in the frontal and parietal lobes that are essential in speech
What are the Broca’s and Wernicke’s areas?
Ion that rushes into the cell during depolarization
What is sodium?
Gates that are responsible for repolarization (2)
What are sodium inactivation and potassium gates
5 steps of an action potential in order
What are: stimulus, threshold potential, depolarization, repolarization and undershoot
Cell’s resting membrane potential
What is -70 mv
The sodium potassium pump actively transports this many K+ into the cell and this many Na+ out of the cell
What are 2 and 3?
List 3 parts of the diencephalon.
FINAL JEOPARDY ANSWER Epithalamus, thalamus, hypothalamus, pituitary gland (others possible)