Hormonsystemet Flashcards

1
Q

Hva er et hormon?

A

Kjemisk signalstoff produsert ett sted i organismen og fraktet til andre steder i små mengder med blodet. Påvirker cellene til å utføre en oppgave.

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2
Q

Vannløselige hormon

A

Er peptidhormoner - f.eks. adrenalin, ADH og insulin.
Lagres i vesikler i ellene. Skilles ut ved eksocytose. Løses i blodet. Bindes til reseptor i cellemembranen til målcellen. Rask cellerespons.

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3
Q

Fettløselig hormon

A

Er steoridehormoner - f.eks. østrogen, testestoron og tyroksinhormoner. Produseres kun ved behov. Passerer cellemembranen fritt. Transporteres bundes til transportproteiner. Bindes til reseptor inne i målcellen. Ofte langsom cellerespons - f.eks. å komme i stemmeskiftet.

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4
Q

Hormonkjertlene

A

Hypothalamus, anterior pituitary gland, pineal gland, pancreas, ovaries, testes, kidneys, adrenal glands, thyroid glands and parathyroid glands.

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5
Q

Hormonenes hypothalamus produces

A

Growth-hormone-releasing hormones, corticotropin-releasing hormones (CRH), thyroid-releasing hormones, gonadotropin-releasing hormones, antidiuretic hormones and oxytocin.

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6
Q

Hormones anterior pituitary gland produces

A

Growth hormones, adrenocorticotropic hormones (ACTH), thyroid-stimulating hormones (TSH), follicle-stimulating hormones (FSH), luteinizing hormones (LH) and prolactin.

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7
Q

Hormones pineal gland produces

A

Melatonin

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8
Q

Hormones pancreas produces

A

Insulin and glucagon

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9
Q

Hormones ovaries produces

A

Estradiol and progesterone

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10
Q

Hormones kidneys produces

A

Erythropoietin (EPO) and Vitamin D

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11
Q

Hormones testes produces

A

Testestorone

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12
Q

Hormones adrenal gland produces

A

Epinephrine, Cortisol and Adlosterone

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13
Q

Hormones thyroid produces

A

Thyroxine

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14
Q

Hormones parathyroid glands produces

A

Parathyorid hormones (PTH)

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