Are You What You Eat?

Question 1

Accessory Organs

Answer 1

Primarily glands, secrete fluids into tracts.

Question 2

Path of Food

Answer 2

Oral cavity
Pharynx
Oesophagus
Stomach
Smal intestine (duodenum, ileium, jejenum)
Large intestine (caecum, colon, rectum)
Anus

Question 3

Functions of Digestive System

Answer 3

Ingestion, mastication, secretive, digestion, absorption, elimination, etc.

Question 4

Histology of Digestive Tract

Answer 4

Mucosa: inner layer, secretes mucus.
Submucosa: CT,contains blood vessels, nerves, etc.
Serosa/adventitia: outermost layer, CT, stability.

Question 5

Mesenteries

Answer 5

Peritoneum (epithelial tissue) which connects organs together & small intestine to back body wall.

Question 6

Greater Omentum

Answer 6

Connects stomach to transverse colon.

Question 7

Lesser Omentum

Answer 7

Connects stomach to liver & diaphragm.

Question 8

Swallowing Phases

Answer 8

Voluntary phase
Pharyngeal phase
Oesophageal phase

Question 9

Swallowing: Voluntary Phase

Answer 9

Tongue pushes bolts to back of oral cavity towards pharynx (oropharynx).

Question 10

Swallowing: Pharyngeal Phase

Answer 10

Soft palate (uvula) closes off the nasopharynx. Bonus touches receptors on oropharynx & swallowing reflex moves bolts down pharynx & into oesophagus. Epiglottis overs trachea.

Question 11

Swallowing: Oesophageal Phase

Answer 11

Plus is moved down oesophagus towards stomach by peristalsis.

Question 12

Layers of Stomach

Answer 12

Muscularis:
- Outer longitudinal
- Middle circular
- Inner oblique
Submucosa
Mucosa

Question 13

Rugae

Answer 13

Folds in the stomach wall which allow it to stretch after eating.

Question 14

Monosaccharides

Answer 14

Glucose
Fructose
Galactose

Question 15

Disaccharides

Answer 15

Sucrose
Lactose
Maltose