2.1a What is the primary function & specific activities of each lobe of the brain?
Region
Location
Front top
corner
Posterior to
frontal lobe
Anterior to the
occipital lobe.
Lateral to the
pons and
medulla
oblongata.
Posterior
cranial fossa
Inferior to the
occipital lobe,
anterior of
temporal lobe
Anterior edge
of cerebellum
& inferior
edge of
temporal lobe
2.1b Label the lobes of the brain:
Primary Function
Specific Activities and
Processes
2.2 Electrical Communication Study Guide by Hisrich
2.2.a How does communication happen within the body?
Electrical Signals  _____________ System
Chemical Signals  _____________ System
Word Bank (words can be used more than once):
Axon / Axons
Neuron’s dendrites
Synapse / Synapses
Axon terminals
Neuron/ Neurons
Synaptic cleft
Action potential
Neurotransmitters
Dendrites
The nervous system is made up of ____________. ____________ communicate just like people do, but they send
messages using _______________________ (electricity passing through their _________). Each __________
picks up signals at its _____________, passes the signals down the __________, into the
______________________, and into the ________________. The _______________ then drops
_____________________________ into the ___________________ between the first _____________________the
next ____________________. That signals ___________ #2 to pass the message on.
2.2.b What is the basic structure and function of a neuron?
Function
Structure
Sends electrical signals through body
Dendrites (“trees”)—
Axon—
Myelin Sheath—
Nodes (“knots”) of Ranvier—
Axon Terminals (“ends”) —
Synapses—
Synaptic Cleft—
Neurotransmitters (“to carry across a nerve”) Give
specific examples —
2.2.c How do the different types of neurons work together to send and receive signals?
Send info from PNS to CNS
Found in CNS
In PNS, receive info from CNS
2.2.d How are electrical impulses created in the human body?
Na+/K+ pump keeps outside of membrane ___ and
inside ___ by pumping positive ______ out of the
membrane, priming the membrane to carry charges
During an __________________, there’s a sudden
reversal of _________, carrying a message down the
axis
Put the following statements in the correct order of events that happens during a reflex arc. Put the correct number,
1-14, in the blanks provided.
Label the following picture:
_____ Generation of the action
potential.
_____ Depolarization of cell
membrane.
_____ Dendrite receives a stimulus.
_____ Repolarization occurs.
_____ Action potential arrives at the
axon terminal.
_____ The neuron makes and stores
neurotransmitters in the vesicles.
_____ Vesicles in the axon terminal
fuse with the plasma membrane.
_____ Neurotransmitters are released into the synaptic cleft.
_____ Ion channels close and action potential moves down the axon.
_____ Ion channels open allowing Na+ ions to move through the membrane.
_____ Neurotransmitters bind to receptors on the receiving neuron’s membrane.
_____ Neurotransmitters are released and move across the synaptic cleft.
_____ Action potential moves down the axon.
_____ Calcium channels open and calcium ions move into the neuron.
2.2.e How do neurons convey information using both electrical and chemical signals?
Electrical _____________________ down axis of
Chemical ____________________ conduct
each neuron (________________ each neuron)
signals ______________neurons
2.2.f
What factors impact our ability to react to a stimulus?
2.2.g How and why does reaction time differ in reflex and voluntary actions?
Reflex—
Voluntary—
2.2.h How do errors in communication impact homeostasis in the human body?
Epilepsy
Parkinson’s
Huntington’s
Alzheimer’s
Multiple Sclerosis
Amyotrophic lateral
sclerosis (Lou
Gehrig's)
2.2.i How can biomedical professionals help treat, cure and improve the quality of life of those suffering from
nervous system disorders?
Neurologist –
Pharmacists –
Researchers –
Nurses –
Brain surgeons –
Psychiatrists –
Physical therapist –