The endocrine system Flashcards

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

What part of the brain is responsible for controlling the release of hormones from the pituitary gland?

A

The hypothalamus, which is connected to the pituitary gland.

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

What makes the hypothalamus the “control system” which regulates the endocrine system?

A

The fact it is responsible for the release and control of hormone levels from the pituitary gland (master gland) which control the levels of other hormones.

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

Which gland is often referred to as the “master gland”?

A

The pituitary gland.

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

Why is the pituitary gland known as the “master gland”?

A

Because the hormone released by the pituitary gland control and stimulate the release of hormones from other endocrine glands.

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

What are the two divisions of the pituitary?

A

The anterior and the posterior.

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

Where is oxytocin released from?

A

The posterior pituitary gland.

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

Where is adrenocortical trophic hormone (ACTH) released from?

A

The anterior pituitary gland.

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

Cortisol is a steroid hormone that evokes stress, what hormone causes cortisol release?

A

Adrenocortical trophic hormone (ACTH).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What hormone is released from the thyroid gland?

A

Thryoxine.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the function of oxytocin?

A

Uterus contractions during childbirth.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which hormone is referred to as the ‘love hormone’?

A

Oxytocin.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the function of thryoxine.

A

Regulating metabolism.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the function of adrenocortical trophic hormone (ACTH)?

A

Stimulates the adrenal cortex and the release of cortisol during the stress response.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What implications would a hyper-active thyroid gland have?

A

A very high metabolism, making it very hard to remain at a healthy weight.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Where is melatonin released from?

A

The pineal gland.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Where is the pineal gland located?

A

In the centre of the brain, slightly offset from the hypothalamus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Name a hormone released form the posterior pituitary gland:

A
  • Oxytocin.

- Anti-diuretic hormone (ADH).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Name a hormone released form the anterior pituitary gland:

A
  • Adrenocortical trophic hormone (ACTH).
  • Luteinizing hormone (LH).
  • Thyroid-stimulating hormone (TSH).
  • Growth hormone (GH).
  • Prolactin.
  • Follicle-stimulating hormone (FSH).
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What hormone is released from the pineal gland?

A

Melatonin.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Where is the thyroid gland?

A

The butterfly-shaped gland sits low on the front of the neck, below your Adam’s apple, along the front of the windpipe.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The thyroid has two side lobes, what connects the two?

A

A bridge called isthmus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the function of melatonin?

A

Controls biological rhythms such as the sleep-wake cycle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What hormone is released from the adrenal medulla?

A

The medulla releases both adrenaline and noradrenaline, which act in the flight / fight response.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Describe the structure of the adrenal gland:

A

Two parts; medulla and cortex. The medulla is wrapped within the cortex.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Where is cortisol released from?

A

The adrenal cortex.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Where are the adrenal glands located?

A

They sit like sandbags on top of the kidneys.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Adrenocortical trophic hormone (ACTH) is released by the anterior pituitary gland, it results in the release of cortisol, how does it do this?

A

ACTH stimulates the adrenal cortex to release cortisol.

28
Q

What are the two parts of the adrenal gland?

A

Adrenal medulla and Adrenal cortex.

29
Q

What is metabolism and which hormone controls it?

A

Metabolism is involved in the chemical process of converting food into energy, controlled by the hormone thyroxine.

30
Q

What is the function of cortisol?

A

It stimulates the release of glucose and suppresses the immune system.

31
Q

Which gland releases androgen?

A

Testes.

32
Q

Name a type of androgen:

A

Testosterone.

33
Q

When would cortisol be released?

A

During the stress response, a flight / fight situation.

34
Q

Which hormone is specific to females and where is it released from?

A

Oestrogen released from the ovaries.

35
Q

Which hormone is specific to males and where is it released from?

A

Testosterone released from the testes.

36
Q

Explain how the release of cortisol helps during the flight / fight response?

A

The hormone stimulates the release of glucose and suppresses non-essential functioning (immune system, digestion…), which provides the body with more energy to respond.

37
Q

What is the function of testosterone?

A

It controls the development of male sex characteristics during puberty, while promoting muscle growth.

38
Q

What is the function of oestrogen?

A

Regulation of the female reproductive system, including the menstrual cycle and pregnancy.

39
Q

Which gland releases a hormone that causes muscle growth in boys during puberty?

A

Testes.

40
Q

Which glands are exclusive to males and females.

A
Males = Testes.
Females = Ovaries.
41
Q

How are hormones carried around the body?

A

In the bloodstream.

42
Q

What are the three types of hormones?

A
  • Steroids.
  • Peptides.
  • Monoamines.
43
Q

What type of hormone is derived from cholesterol?

A

Steroids.

44
Q

Where is Anti-diuretic hormone (ADH) secreted from?

A

The posterior pituitary gland.

45
Q

Which gland sits on the kidneys?

A

The adrenal gland.

46
Q

What allows hormones to travel to cells in other parts of the body?

A

The hormones are transported in the blood.

47
Q

How fast acting is the endocrine system?

A

Relatively long but last long.

48
Q

Which gland acts a liaison between the nervous and endocrine systems?

A

The hypothalamus.

49
Q

What does Anti-diuretic hormone (ADH) do?

A

Maintains water concentrations in the kidney.

50
Q

What type of relationship is present between the anterior pituitary gland and the thyroid gland?

A

Negative feedback loop,

51
Q

What is Epinephrine?

A

Adrenaline.

52
Q

What is the biggest gland in the body?

A

Pancreas.

53
Q

Where is insulin released from?

A

Pancreas.

54
Q

What are the main hormones released by the pancreas?

A

Insulin and Glucagon.

55
Q

What is the role of insulin?

A

Control blood glucose level by converting it to glycogen for storage.

56
Q

Where is glucagon released from?

A

Pancreas.

57
Q

What is the function of glucagon?

A

Converts glycogen into blood glucose.

58
Q

Where are Estrogens and Progestins formed?

A

Ovaries.

59
Q

Where is Anti-diuretic hormone (ADH) formed?

A

Hypothalamus.

60
Q

Where is luteinizing hormone (LH) produced?

A

The anterior pituitary gland.

61
Q

What is the function of luteinizing hormone (LH)?

A

LH stimulates testosterone production in men and egg release (ovulation) in women.

62
Q

Where is follicle-stimulating hormone (FSH) produced?

A

The anterior pituitary gland.

63
Q

Gigantism is caused by an excess of growth hormone (GH), where is GH released from?

A

The anterior pituitary gland.

64
Q

Where is the pineal gland?

A

Deep in the brain in the epithalamus, where two halves of the brain join together.

65
Q

The pineal gland contains a very high level of which ion?

A

Calcium.

66
Q

What is vapopressin?

A

ADH.

67
Q

Where is the word hormone descended from and what does this suggest about their function?

A

The Greek word ‘hormao’ which mean ‘excite’, telling us that hormones stimulate (excite) a particular part of the body.