The Endocrine System Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

How can information be sent around the body apart from along nerves?

A

By using hormones.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are hormones?

A

Chemical molecules released directly into the blood.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where are hormones carried and where to? What do they affect?

A

In the blood to other parts of the body, but only affect particular cells in particular organs (called target organs).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What do hormones control?

A

Things in organs and cells that need constant adjustment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Where are hormones produced?

A

In (and secreted by) various glands, called endocrine glands. These glands make up your endocrine system.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What length of time of effects do hormones usually have?

A

Relatively long-lasting effects.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Give some examples of glands that produce hormones.

A

The Pituitary gland - produces many hormones that regulate body conditions. Sometimes called the “master gland” because these hormones act on other glands, directing them to release hormones that bring about a change.
Thyroid - produces thyroxine, which is involved in regulating things like the rate of metabolism, heart rate and temperature.
Adrenal gland - produces adrenaline, which is used to prepare the body for a “fight or flight” response.
The pancreas - produces insulin, which is used to regulate the blood glucose level.
Ovaries (females only) - produce oestrogen, which is involved in the menstrual cycle.
Testes (males only) - produce testosterone, which controls puberty and sperm production in males.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What’s the difference between hormones and nerves?

A

Nerves: Hormones:

  • Very fast action - Slower action
  • Act for a very short time - Act for a long time
  • Act on a very precise area - Act in a more general way
How well did you know this?
1
Not at all
2
3
4
5
Perfectly