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Health Science > Lecture 19 Endocrine System & Sleep > Flashcards

Lecture 19 Endocrine System & Sleep Flashcards

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1
Q

4 Functions of Circulatory System

A

Transport nutrients and gasses

Distributes heat

Heal wounds and fight off diseases

Carries hormones from gland to target

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2
Q

What’s a gland?
(…secretes particular…)

A

An organ that secretes particular chemical substances

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3
Q

What are hormones?

A

Chemical messengers carried by blood to organs/tissues to exert their function

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4
Q

Exocrine glands are..
(Glands that dumps..)

A

Glands that dumps into ducts that lead out of the body or into another organ

(NOT PART OF ENDOCRINE SYSTEM)

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5
Q

Endocrine glands are…
(Group of cells…Molecular messengers…)

A

Group of cells that secretes molecular messengers into the bloodstream.

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6
Q

Roles of pancreas in both endocrine and exocrine functions

A

Endo: Secretes Hormones

Exo: Secretes digestive juices and enzymes

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7
Q

Role of hormone
(..Produced by ENDOCRINE GLANDS)

A

Causes response in a target cell or organ

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8
Q

What are target cells?

A

A cell targeted by hormones

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9
Q

How does target cells create responses?

A

Hormones must match the shape of the target cell

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10
Q

What glands are part of the endocrine system?

A

Pineal
Hypothalamus
Pituitary
Thyroid
Parathyroids
Thymus
Adrenals
Ovary/Testies

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11
Q

What is the pituitary gland?

A

A “master gland” where it commands other glands what to do and produces different hormones

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12
Q

Role of hypothalamus
(Senses what, then tells who?)

A

Senses hormone levels in blood, then tells pituitary what to do

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13
Q

Function of Pituitary gland(Master)
(Secretes what, influences what gland?)

A

Secretes hormones that influence all endocrine glands

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14
Q

Function of Pineal gland
(To help you sleep)

A

Produces melatonin

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15
Q

Thyroid gland role
(Influence, lowers, and increases what)
(BL/Bo)

A

Influences metabolic rate, lowers blood calcium levels, and increases bone calcium levels

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16
Q

Function of Parathyroid glands
(^BG/¡Bo)

A

Increases blood calcium levels and lowers bone calcium levels

17
Q

Thymus gland role
(Immune response)

A

Stimulates immune response in children

18
Q

What’s adrenal gland?
(Think adrenaline)

A

Help prepare the body for stress and control blood pressure

19
Q

Function of pancreas

(In endocrine system)(Control what?)

A

Produces hormones that control BG
(Blood Glucose Level)

20
Q

Function of Ovaries

A

Produces hormones that control female characteristics and menstrual cycle

21
Q

Function of Testes

A

Produces a hormone that control male characteristics and sperm production

22
Q

What’s sleep?

A

Period of rest and recovery

23
Q

What hormones are increased during sleep?

A

Somatotropin (pituitary,hypothalamus)

Melatonin
(Pineal gland)

24
Q

How are Circadian Rhythms maintained by?
(Supra…)

A

Suprachiasmic Nuclei

25
Q

Function of Suprachiasmic Nuclei

A

Controls body temperature, alertness, and activity

Signals pineal gland to release melatonin

Signals pituitary gland to release growth hormones

26
Q

What’s sleep deprivation?

A

Lack of sleep; impairs physical, emotional, and cognitive function

27
Q

What’s sleep debt?

A

Difference between amount of sleep gain and amount of sleep needed to maintain wakefulness

28
Q

2 stages of sleep

A

Non-Rapid eye movement

Rapid eye movement

29
Q

Stages of Non-REM sleep

A

1) relaxed, half-awake
2) brain activity slows and movement stops
3) deep sleep

30
Q

Negative effects of insufficient REM sleep

A

Impair memory and ability to learn new skills

31
Q

What’s insomnia?

A

Difficulty to fall asleep

(Caused by stress)

32
Q

What’s sleep apnea?
(Breathe)

A

Periods of non-breathing during sleep

33
Q

What’s central sleep apnea?

(Brain fails to..?)

A

Brain fails to regulate diaphragm and breathing mechanisms correctly

34
Q

What’s obstructive sleep apnea?

(Airway obstructed)

A

Upper airway obstructed during sleep

35
Q

What’s sleep eating disorder?

A

Disorder where a person eats and drinks while asleep

36
Q

What’s night eating syndrome?

A

Constant eating during night while awake

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