Anatomy & Physiology B/C

Test your knowledge of various Science Olympiad events.
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bhavjain
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Re: Anatomy & Physiology B/C

Postby bhavjain » November 2nd, 2016, 9:42 pm

Bump!

Differentiate between retrograde and anterograde amnesia. Which one is more common?
2017 Science Olympiad - (Invites TBD/Reg/State/Nats) - Division C

Anatomy: (-/-/-/-)
Astronomy: (-/-/-/-)
Disease Detectives: (-/-/-/-)
Ecology: (-/-/-/-)
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Kon
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Re: Anatomy & Physiology B/C

Postby Kon » November 6th, 2016, 3:18 pm

Bump!

Differentiate between retrograde and anterograde amnesia. Which one is more common?
Answer
Anterograde amnesia is more common is characterised by being unable to form memories after trauma and Retrograde amnesia is the opposite, being unable to recall memories before trauma

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bhavjain
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Re: Anatomy & Physiology B/C

Postby bhavjain » November 6th, 2016, 5:10 pm

Bump!

Differentiate between retrograde and anterograde amnesia. Which one is more common?
Answer
Anterograde amnesia is more common is characterised by being unable to form memories after trauma and Retrograde amnesia is the opposite, being unable to recall memories before trauma
Correct. Your turn.

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Re: Anatomy & Physiology B/C

Postby rafaelnadal » November 21st, 2016, 9:08 am

Because this is dead, I'll pick it up. God knows I need the practice.

Describe alpha-gamma coactivation and the identify the roles of two neurons involved in it *i hope this is a hard one hehe :twisted: *

I doubt this will ever show up on a test tho..*except for mine :twisted: *

Kon
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Re: Anatomy & Physiology B/C

Postby Kon » November 28th, 2016, 8:23 pm

No idea what this was but I think I understand after searching at least a hundred sites for a clear answer :p
Alpha-gamma coactivation is when a muscle/extrafusal fibers contract when an [u]Alpha Motor Neuron[/u] tells it to, and the spindles/intrafusal fibers also contracts when a [u]Gamma Motor Neuron[/u] tells it to at the same time by the same signal.

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Re: Anatomy & Physiology B/C

Postby rafaelnadal » November 29th, 2016, 3:31 pm

No idea what this was but I think I understand after searching at least a hundred sites for a clear answer :p
Alpha-gamma coactivation is when a muscle/extrafusal fibers contract when an [u]Alpha Motor Neuron[/u] tells it to, and the spindles/intrafusal fibers also contracts when a [u]Gamma Motor Neuron[/u] tells it to at the same time by the same signal.
Yes! Your turn! This occurs within the muscle spindle, which are stretch receptors, which are a type of mechanorecetpors, and hence related to our anatomy test even though it doesnt seem like it at all :D !

sciolyFTW_aku
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Re: Anatomy & Physiology B/C

Postby sciolyFTW_aku » December 1st, 2016, 5:23 pm

Because this is dead, I'll pick it up. God knows I need the practice.

Describe alpha-gamma coactivation and the identify the roles of two neurons involved in it *i hope this is a hard one hehe :twisted: *

I doubt this will ever show up on a test tho..*except for mine :twisted: *
Good question though!

Kon
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Re: Anatomy & Physiology B/C

Postby Kon » December 1st, 2016, 8:04 pm

No idea what this was but I think I understand after searching at least a hundred sites for a clear answer :p
Alpha-gamma coactivation is when a muscle/extrafusal fibers contract when an [u]Alpha Motor Neuron[/u] tells it to, and the spindles/intrafusal fibers also contracts when a [u]Gamma Motor Neuron[/u] tells it to at the same time by the same signal.
Yes! Your turn! This occurs within the muscle spindle, which are stretch receptors, which are a type of mechanorecetpors, and hence related to our anatomy test even though it doesnt seem like it at all :D !
Oh thanks for that extra bit of info :D

Name and describe all the different types of color blindness.

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Re: Anatomy & Physiology B/C

Postby mangothecat » December 23rd, 2016, 7:36 pm

Name and describe all the different types of color blindness.
answer
Malfunctioning/missing red cone: protanomaly/protanopia. Malfunctioning/missing green cone: deuteranomaly/dueternopia. Malfunctioning/missing blue cone: tritanomaly/tritanopia. Only one functioning cone: cone monochromacy. Total colorblindness (no functioning cones): achromatopsia.

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Re: Anatomy & Physiology B/C

Postby mangothecat » January 15th, 2017, 4:28 pm

*attempts to reincarnate this dead thread*
Name two neurotransmitters that are generally inhibitory and two neurotransmitters that are generally excitatory.
“Cats can work out mathematically the exact place to sit that will cause most inconvenience.” ~Pam Brown
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Anat&Physio: 2/3/1/1/1/
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yew
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Re: Anatomy & Physiology B/C

Postby yew » January 15th, 2017, 5:03 pm

*attempts to reincarnate this dead thread*
Name two neurotransmitters that are generally inhibitory and two neurotransmitters that are generally excitatory.

[hide]Inhibitory- glycine and GABA
Excitatory- serotonin and glutamate[/hide]

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mangothecat
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Re: Anatomy & Physiology B/C

Postby mangothecat » January 15th, 2017, 9:46 pm

*attempts to reincarnate this dead thread*
Name two neurotransmitters that are generally inhibitory and two neurotransmitters that are generally excitatory.
Inhibitory-
glycine and GABA Excitatory- serotonin and glutamate
I think...
serotonin is generally inhibitory. Another excitatory neurotransmitter can be acetylcholine.
Your turn!

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Re: Anatomy & Physiology B/C

Postby radioactiveviolet » January 16th, 2017, 6:10 am

Question :)
The venom of a puffer fish (tetrodotoxin) stops voltage-gated sodium channels from functioning. Thus, you would expect a cell treated with tetrodotoxin to: a. Produce stronger than normal action potentials b. Produce action potentials quicker c. To be unable to produce action potentials d. To be able to depolarize but not repolarize
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sciolyFTW_aku
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Re: Anatomy & Physiology B/C

Postby sciolyFTW_aku » January 16th, 2017, 9:53 am

Question :)
The venom of a puffer fish (tetrodotoxin) stops voltage-gated sodium channels from functioning. Thus, you would expect a cell treated with tetrodotoxin to: a. Produce stronger than normal action potentials b. Produce action potentials quicker c. To be unable to produce action potentials d. To be able to depolarize but not repolarize
Answer
c
B-)

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Re: Anatomy & Physiology B/C

Postby yew » January 18th, 2017, 6:45 am

During which stage of sleep is growth hormone released?


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