Flashcards
Digestive systems
Cards in this deck (12)
- 1name and label the diagram (16)Monogastric digestive system (1)
1. buccal cavity
2. esophagus
3. liver
4. bile duct
5. duodenum
6. pancreas
7. jejunum
8. ilium
9. rectum
10. anus
11. large intestine
12. cecum.
13. small intestine
14. stomach
15. small intestine (composed of duodenum, jejunum, ilium) - 2what are the 5 processes of nutrition and what occurs during them (10)1. ingestion (1) - getting food in the body (1)
2. digestion (1) - breaking down food into useable bits (1)
3. absorption (1) - useful products transported across linings into the bloodstream (1)
4. assimilation (1) - digested food molecules incorporated and used (1)
5. egestion (1) - elimination of undigested food (1) - 3what are 6 main components of a basic digestive system - what occurs in them? (12)buccal cavity (1) - enzymes secreted here (and mastication) (1)
oesophagus (1) - food moved through here by peristalsis (1)
stomach (1) - secretions & movement continue breakdown (1)
small intestine (1) - absorption of nutrients (1)
large intestine (1) - absorption of water
rectum (1) - excretion of water (1) - 4what are the main types of digestive systems?monogastrics (1)
ruminants (1)
pseudo ruminants (1)
hundgut fermenters (1)
avians (1) - 5How many stomachs do avians have and what are they called2 stomachs (1)
proventriculus (1) and gizzard (1) - 6how many stomachs do ruminants have and what are they called?4 stomachs (1)
reticulum (1)
rumen (1)
omasum (1)
abomasum (1) - 7what is the role of bacteria in hindgut fermenters (3)symbiotic bacteria (1) continue fermentation in the hindgut (1) and dugest cellulose (1)
- 8how many stomachs do pseudo ruminants have and what are they called?3 stomachs (1)
reticulum (1)
abomasum (1)
omasum (1) - 9in what order does food pass through the stomach of a ruminant? (4)rumen
reticulum
omasum
abomasum - 10why is the oesophagus lined with stratified squamous epithelium and smooth muscle (2)stratified squamous epithelium can tolerate abrasion due to passing food (1)
smooth muscle squeezes food down to the stomach (peristalsis) (1) - 11what is the function of the duodenum (3)removes partially digested food from the stomach
neutralises acidic stomach contents
carbohydrate and fat digestion - 12what is the function of the ileum (3)absorption of nutrients (mainly B12) (1)
final digestion of carbohydrates and fat (1)
some water absorption (1)
Information
- Description
- Year 1 Biological concepts (Digestive systems) Flashcards on Digestive systems , created by Lucy Fern on 04/05/2022.
- Created by
- Lucy Fern
- Views
- 0
- Rating