Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Physiology 1 > Control Of Food Intake > Flashcards

Control Of Food Intake Flashcards

1
Q

How much can the stomach expand by (volume-wise)?

A

50ml -> 1500ml

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

What are the two satiety signals?

A

Vasoactive intestinal peptide (VIP) and NO

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

How does receptive relaxation work?

A

Mechanical stimulation in the pharynx -> vagus centre stimulated which sends signals down the inhibitory vagal fibre (NANC inhibition) -> NO or VIP relax the gastric resovoir into the fondus

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

What is the enteric nervous system?

A

Stomachs brain

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

What is the difference between feedback and adaptive relaxation?

A

Feedback relaxation - after the food has left the stomach

Adaptive- when the foods still in the stomach- more to do with satiety

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

What happens when the ENS detects lipids in the stomach?

A

Cholecystokinin is released in the blood

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

What is a vagotomy?

A

When some of the vagal nerves are severed

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

What does a vagotomy do?

A

Impairs accommodation and gastric compliance and non-motor factors (like gastric emptying)

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

What does a vagotomy cause you to feel?

A

Bloated, nausea etc

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

What is the definition of hunger?

A

Discomfort caused by lack of food and the desire to eat- strong physiological craving for food

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

What is the definition of appetite?

A

Psychological drive to satisfy the bodies need for food

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

What is the definition of satiety?

A

State of being full after eating food

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

What is the definition of aphagia?

A

Inability or refusal to swallow

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

What is the definition of hyper/polyphagia?

A

An abnormal desire for food

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

What part of the brain controls food intake?

A

Hypothalamus

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

What regulates feeding in the hypothalamus?

A

Balance of stimulators and inhibiting forces

17
Q

When are carbs metabolised?

A

During the day

18
Q

When are fats metabolised?

A

At night

19
Q

What are the reasons for difference in the BMI?

A

70% genes and 30% how much we eat and its composition

20
Q

What factors influence appetite (5)?

A 
Food palatability
Emotional
Habitual
Circadian rhythm
Company
21
Q

What does the nucleus accumbens do?

A

Controls ingestion and swallowing

22
Q

What does the somatosensory cortex control?

A

Taste perception

23
Q

What does the prefrontal cortex control?

A

Food-seeking behaviours

24
Q

Where is the satiety centre found?

A

Ventromedial nuclei

25
Q

What happens when the ventromedial nuclei is stimulated?

A

Aphagia

26
Q

What happens when there are lesions on the ventromedial nuclei?

A

Hyperphagia

27
Q

What do opioids do?

A

Increase appetite

Physiology 1 (65 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions