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BIOL 365 Exam 2 Review Flashcards | StudBud
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BIOL 365 Exam 2 Review
BIOL 365 Exam 2 Review
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1
Which of these is the "tree like" part of the neuron?
The Body
The Dendrites
The Hillock
The Axon
2
Dura, Arachnoid, pia are the _______
3 regions of the lymbic system
Inner Ear Bones
3 vertebral bones
Meninges
3
What is a neurotransmitter?
A synapse
An ion channel
A small molecule communication system
A protein relay system
4
The region of the brain that looks like a seahorse
The pons
The medulla oblongata
The Amygdala
The hippocampus
5
All of these are true of neurons EXCEPT
They're Excitable Cells
They experience graded potentials
They respond to neurotransmitters
They often have multiple axons
6
Which of these would be considered a "polarized" cell potential?
+30mV membrane potential
-70mV membrane potential
-5mV membrane potential
-35mV membrane potential
7
When loud music damages our hearing permanantly, it's usually because ________
Our hair cells are depolarized
Our kinocilia on the hair cells fell off
The tip links on our stereocilia ripped and broke
The cochlea uncurled
8
Why are squid neurons a great way to study the ionic theory of nerve conduction?
They're stimkey
They have very strong electrical signals
They are completely clear
They're huge compared to most animal nerves
9
The meylin sheath is created by the same type of cell in the PNS as in the CNS
False
True
10
The receptors on our taste buds are
Magnetoreceptors
Chemoreceptors
Siloreceptors
Ionotropic receptors
11
The side of the synapse that contains receptors
Postsynaptic
Axonal
Dendritic
Presynaptic
12
These cells keep our CNS neurons healthy and "glued" together
Glial Cells
Perkinje Cells
Chromaffin Cells
Epithelial Cells
13
The part of our limbic system that stores emotional memories
The Hypothalamus
The Amygdala
The Fornix
The Cingulate Gyrus
14
At what membrane potential do the voltage gated sodium channels open in an axon?
-70mv
0v
+35mv
-55mv
15
The difference in charge and chemical concentration across a membrane
The electrochemical gradient
An action potential
The ionic potential
A graded potential
16
An excitatory post synaptic potential causes a cell to:
die
Hyperpolarize
Intake neurotransmitters
Depolarize
17
A sensory neuron contains all the following EXCEPT
Neurotransmitters
Polytopes
Trigger Zone
Dendrites
18
These structures in our inner ear allow us to sense balance
Malleus
Semicircular Canals
Stapes
Cochlea
19
Voltage gated sodium channels have:
A high action potential
A low action potential
Two gates
No shame
20
Which of these is NOT an ion that generally affects the membrane potential?
Chloride
Sodium
Potassium
Calcium
21
Signals coming into our brains are called
Bidirectional
Efferent
Afferent
Sorted
22
Do nerves ALWAYS have nucleii?
of... course?
Only in the CNS
Only if they are Schwann cells
Nah
23
This part of the brain does the most to maintain our homeostasis
The Tegmentum
The Cerebrum
The Fornix
The Hypothalamus
24
What are these?
Some kind of sea creature?
Pluonic cells
Olfactory cells
Hair Cells
25
What is this?
The Goldman equation
Some kind of a threat?
The Nearnst Equation
The electrochemical gradient
