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Physiology 2 > Lab 8 Endocrinology > Flashcards

Lab 8 Endocrinology Flashcards

1
Q

List the 3 possible interactions btw Gamma radiation and matter?

A

Photoelectric effect, Compton Scattering and Pair production

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2
Q

What is Compton Scattering?

A

y- photons colliding with free or loosely bound electron in the absorber

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3
Q

Which radiation type has the highest ionzing ability?

A

Alpa

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4
Q

Where is progesterone produced?

A

Ovary, placenta and small amounts in adrenal medulla

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5
Q

What is detected in pregnancy in humans?

A

Present of hCG secretion by trophoblast cells in placenta

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6
Q

What is pair production?

A

When a photon of high energy comes near to an atomic nucleus in the absorber

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7
Q

Give the step of ELISA

A

Enzyme linked to antigen or antibody, after immunological reaction and separation of a chromogenic substrate of the given enzyme is added. If complex exist, colour reaction.

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8
Q

What is the shortest effective distance?

A

Alpha

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9
Q

What is the strongest pervasiveness radiation?

A

Gamma

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10
Q

Which ions inhibit iodine accumulation?

A

Thiocyanate ions

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11
Q

Particels in Beta-radiation?

A

Electron and positron

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12
Q

Which radiation has longest effective distance?

A

Gamma

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13
Q

Which radiation has strongest effective pervasiveness?

A

Gamma

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14
Q

Name the isotopes of hydrogen

A

Protium, Deuterium and Tritium

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15
Q

What is the background count?

A

Cosmic radiation and internal electronic noise of the apparatus

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16
Q

How to detect progesterone in blood?

A

ELISA and RIA

17
Q

Which animals can Estrone sulphate be detected in the blood by ELISA or RIA?

A

Horse and Swine

18
Q

Most common Hydrogen isotope

A

Protium

19
Q

What does Alpha particles consist of?

A

2 protons and 2 neurons = Helium nucleus

20
Q

What does gamma particles consist of?

A

Quantum of electromagnetic radiation of high energy

21
Q

Define Becquerel

A

Number of disintegrations per second

22
Q

The steps of RIA

A

To separate the unbound components and then measure the radioactivity of the bound fraction

23
Q

Definition of Isotopes

A

Elements with the same proton numbers but different neutron numbers

24
Q

Which radiation has weakest effective pervasivness?

A

Alpha

Physiology 2 (10 decks)

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