Anatomy & Physiology B/C

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mangothecat
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Re: Anatomy & Physiology B/C

Post by mangothecat »

bhavjain wrote:Which structure of the eye produces rheum, or gound?
medial caruncle (i think...)
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Re: Anatomy & Physiology B/C

Post by bhavjain »

mangothecat wrote:
bhavjain wrote:Which structure of the eye produces rheum, or gound?
medial caruncle (i think...)
I've mostly heard it being called the lacrimal caruncle, but I've seen your answer as a synonym as well. Correct!

Your turn.
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Re: Anatomy & Physiology B/C

Post by mangothecat »

Choose the correct answers:
In the dark, cGMP gated cation channels of a photoreceptor are (1)[open/closed], causing the photoreceptor to (2)[depolarize/hyperpolarize]. This causes (3) [Ca++/Na+] channels to (4) [open/close] at the synaptic terminal of the photoreceptor. Neurotransmitter (5) [is/is not] released into the synaptic cleft, causing (6) [IPSPs/EPSPs] in the bipolar cell, and thus (7) [depolarizing/hyperpolarizing] the bipolar cell. At the synaptic terminal of the bipolar cell, voltage gated (8)[Ca++/Na+] channels (9)[open/close], and neurotransmitter (10)[is/is not] released into the synaptic cleft. As a result, EPSPs (11)[are/are not] generated in the ganglion cell, and an action potential (12)[does/does not] propagate along the optic nerve.
Aaaah hope I'm not too confusing
“Cats can work out mathematically the exact place to sit that will cause most inconvenience.” ~Pam Brown
2016: Churchill, Mira Loma, Mesa/Wilson, Wicklund, Regs, States
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Disease Detectives: 1/1/2/1/1/
Microbe Mission: 1/4/2/2/2/
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Re: Anatomy & Physiology B/C

Post by bhavjain »

mangothecat wrote:Choose the correct answers:
In the dark, cGMP gated cation channels of a photoreceptor are (1)[open/closed], causing the photoreceptor to (2)[depolarize/hyperpolarize]. This causes (3) [Ca++/Na+] channels to (4) [open/close] at the synaptic terminal of the photoreceptor. Neurotransmitter (5) [is/is not] released into the synaptic cleft, causing (6) [IPSPs/EPSPs] in the bipolar cell, and thus (7) [depolarizing/hyperpolarizing] the bipolar cell. At the synaptic terminal of the bipolar cell, voltage gated (8)[Ca++/Na+] channels (9)[open/close], and neurotransmitter (10)[is/is not] released into the synaptic cleft. As a result, EPSPs (11)[are/are not] generated in the ganglion cell, and an action potential (12)[does/does not] propagate along the optic nerve.
Aaaah hope I'm not too confusing
Fun question!
open, depolarize, Ca++, open, is, IPSPs, hyperpolarizing, Ca++, close, is not, are not, does not
Hopefully I got those right :D
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Re: Anatomy & Physiology B/C

Post by mangothecat »

bhavjain wrote:
mangothecat wrote:Choose the correct answers:
In the dark, cGMP gated cation channels of a photoreceptor are (1)[open/closed], causing the photoreceptor to (2)[depolarize/hyperpolarize]. This causes (3) [Ca++/Na+] channels to (4) [open/close] at the synaptic terminal of the photoreceptor. Neurotransmitter (5) [is/is not] released into the synaptic cleft, causing (6) [IPSPs/EPSPs] in the bipolar cell, and thus (7) [depolarizing/hyperpolarizing] the bipolar cell. At the synaptic terminal of the bipolar cell, voltage gated (8)[Ca++/Na+] channels (9)[open/close], and neurotransmitter (10)[is/is not] released into the synaptic cleft. As a result, EPSPs (11)[are/are not] generated in the ganglion cell, and an action potential (12)[does/does not] propagate along the optic nerve.
Aaaah hope I'm not too confusing
Fun question!
open, depolarize, Ca++, open, is, IPSPs, hyperpolarizing, Ca++, close, is not, are not, does not
Hopefully I got those right :D
Yeeup, all of them are correct! Your turn!
“Cats can work out mathematically the exact place to sit that will cause most inconvenience.” ~Pam Brown
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Re: Anatomy & Physiology B/C

Post by bhavjain »

Which structure in the midbrain contains high levels of neuromelanin in dopaminergic neurons? This structure was also discovered in 1784.
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Re: Anatomy & Physiology B/C

Post by mangothecat »

bhavjain wrote:Which structure in the midbrain contains high levels of neuromelanin in dopaminergic neurons? This structure was also discovered in 1784.
substantia nigra
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Re: Anatomy & Physiology B/C

Post by bhavjain »

mangothecat wrote:
bhavjain wrote:Which structure in the midbrain contains high levels of neuromelanin in dopaminergic neurons? This structure was also discovered in 1784.
substantia nigra
Correct! Your turn.
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Re: Anatomy & Physiology B/C

Post by mangothecat »

What hormone is secreted by cells of the zona glomerulosa? What does this hormone do?
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Disease Detectives: 1/1/2/1/1/
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Re: Anatomy & Physiology B/C

Post by bhavjain »

mangothecat wrote:What hormone is secreted by cells of the zona glomerulosa? What does this hormone do?
Aldosterone; increases blood pressure by stimulating reabsorption of water and sodium ions, increases excretion of potassium and hydrogen ions, works in the renin-angiotensin-aldosterone mechanism.
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