The Endocrine system Flashcards

(13 cards)

1
Q

Why are hormones carried in the blood ?

A

To go to other parts of the body, but only affect particular organs (called target organs)

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2
Q

What are hormones ?

A

Chemical
molecules released directly into the blood

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3
Q

What do hormones control ?

A

They control things in organs and cells that need constant adjustment

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4
Q

What are hormones produced and secreted in by ?

A

Various glands, called endocrine glands.

Making up your endocrine system

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5
Q

What do hormones tend to have ?

A

Relatively long-lasting effects

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6
Q

What does the Pituitary gland produce ?

A

Many hormones that regulate body conditions

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7
Q

Why is the Pituitary gland sometimes called the master gland ?

A

Because these hormones can acts on other glands, directing them to release hormones that bring about change

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8
Q

What does the thyroid produce ?

A

Thyroxine, which is involved in regulating things like the rate of metabolism, heart rate and temperature

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9
Q

What do the ovaries produce ?

A

Oestrogen, which is invoked in the menstrual cycle

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10
Q

What does the Arenal gland produce ?

A

Adrenaline, which is used to prepare the body for a ‘flight or fight’ response

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11
Q

What does the
Pancreas produce ?

A

Insulin, which is used to regulate the blood glucose level

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12
Q

What do the Testes produce ?

A

Testosterone, controls puberty and sperm production in males

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13
Q

What are the differences between nerves and hormones ?

A

NERVES:

  • Very fast action
  • Act for a very short time
  • Act on a very precise area

Hormones:

  • Slower action
  • Act for a long time
  • Act in a more general way
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