Brainscape's Knowledge GenomeTM

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


See full index

Gastrointestinal System > Purpose Of The Gut > Flashcards

Purpose Of The Gut Flashcards

1
Q

Why do we have a gut?

A

Food ingestion, digestion and absorption
Egesting what we don’t need
Excreting waste products

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

What are the 4 sphincters in the oesophagus?

A

Upper oesophageal sphincter
Lower oesophageal sphincters
Muscular pylorex sphincter
Rectal sphincter

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

What are the challenges of the gut?

A 
Small space
Inside but external surface 
Stop toxins and infections entering 
Need water for chemical reactions 
Control is complex
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the longest part of the gastrointestinal parts?

A

Jejunum

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

What is the port of entry of the gut?

A

The mouth

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

What areas mechanically disrupt?

A

Mouth and teeth

Actions of the stomach- make chyme

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

How does the stomach mechanically disrupt?

A

Upper area creates a basal tone
Lower area uses peristalsis
Has another layer of inner oblique muscle

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

Where are things stored in the gi tract?

A

Stomach

Colon- temporary

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

What are the folds of the stomach called?

A

Rugae

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

Where does chemical digestion occur in the GI?

A

Saliva- amylase and lipase
Stomach- acid and pepsin
Duodenum/Jejunum- bile and exocrine pancreas

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

What is the defence from pathogens in GI?

A

Saliva
Hoc
Kuppfer cells
Peyers patches

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

How does food move along the tract?

A

Peristalsis
Segmentation
Haustral shuttling
Mass movement

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

What muscles type is in the bowel?

A

Mainly smooth muscle

Some skeletal muscle

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

What does the gut absorb?

A

Digested food and secretions

Fluid balance

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

What structures help to aid absorption in the gut?

A

Length
Folds
Villi and microvilli

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

How does the gut eliminate waste?

A 
Mass movement 
Using colon as temporary storage
Rectum empty usually 
Anal sphinchter 
Gastrocolic reflex
17
Q

What is the mouth used for?

A

Physical breakdown of food
Digestive enzyme release
Infection control

18
Q

What is the oesophagus main functions?

A

Rapid transport of bonus to stomach through thorax
Prevents air from entering GI tract
Helps prevent reflux into oesophagus

19
Q

What are the functions of the stomach?

A

Storage
Produce chyme by breakdown
Infection control
Secrete intrinsic factor

20
Q

What are the functions of duodenum?

A

Start of small intestine
Neutralisation of chyme
Digestion wrap
Pancreatic secretions and bile

21
Q

What are the functions of jejunum and ilieum?

A 
Final digestion 
Nutrient absorption 
Water electrolyse absorption 
Bile recirculating 
B12 absorption
22
Q

What are the functions of the large bowel?

A

Final water absorption

Final electrolyte absorption

23
Q

What is the rectum and anus for?

A

Defaecation

24
Q

What is the peritoneal cavity?

A

Space between parietal and visceral peritoneum

Gastrointestinal System (16 decks)

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