Digestive System

Question 1

A continuous tube running from the mouth to anus. This is composed of mouth, pharynx, esophagus, stomach, small intestine and large intestine

Answer 1

Gastrointestinal/Alimentary tract

Question 2

These are row of small teeth along the margin of the upper jaw

Answer 2

Maxillary teeth

Question 3

This is a pair of grooves on the inner side of the maxillary teeth that receives the lower jaw when the mouth is closed

Answer 3

Sulcus marginalis

Question 4

A prominent depression of the sulcus marginalis at the anterior tip of the upper jaw

Answer 4

Median subrostral fossa

Question 5

A pair of depressions of the sulcus marginalis lateral to the pulvinars

Answer 5

Lateral subrostral fossa

Question 6

A pair of low elevations on each side of the median subrostral fossa

Answer 6

Pulvinar rostrale

Question 7

A pair of slit-like openings above the eyeballs leading to the external nares

Answer 7

Internal/posterior nares/Choanae

Question 8

These are two large rounded bulges of the eyeball

Answer 8

Eyeball/orbital prominence

Question 9

These are fine teeth projecting from the vomers in between the internal nares

Answer 9

Vomerine teeth

Question 10

A pair of slit-like openings found medial to the angles of the jaw

Answer 10

Opening of eustachian tube

Question 11

Leads to the cavity of the middle ear

Answer 11

Eustachian tube

Question 12

These are two shallow depressions on each side of tuberculum prelinguale

Answer 12

Prelingual fossa

Question 13

A prominent median elevation at the tip of the lower jaw. This fits into the median subrostral fossa when the mouth is closed

Answer 13

Tuberculum prelinguale

Question 14

A forked muscular organ attached to the anterior tip of the lower jaw

Answer 14

Tongue

Question 15

This is a pair of slit-like opening on the floor of the mouth close to the angle of the jaw

Answer 15

Opening of vocal sac

Question 16

A large transverse slit, posterior to the laryngeal prominence

Answer 16

Opening of esophagus

Question 17

Circular elevation anterior to the esophageal opening

Answer 17

Laryngeal prominence

Question 18

A short vertical slit like opening at the center of the laryngeal prominence

Answer 18

Glottis

Question 19

Posterior portion of the buccal cavity which opens into the esophagus

Answer 19

Pharynx

Question 20

A very short tube that connects the pharynx to the stomach

Answer 20

Esophagus

Question 21

A large whitish organ with either u or j shaped enlarged portion of the digestive tube

Answer 21

Stomach

Question 22

This is a constriction at the posterior end of the stomach

Answer 22

Pylorus

Question 23

This is a dark red organ located on the left lateral side of the stomach

Answer 23

Spleen

Question 24

This is a small greenish sac located at the ventral part of the median lobe of liver

Answer 24

Gallbladder

Question 25

This is slender and the longest portion of the tube which is irregularly coiled

Answer 25

Small intestine

Question 26

The more anterior portion of the small intestine which is wider but shorter

Answer 26

Duodenum

Question 27

More posterior, narrower and longer coiled division of the small intestine

Answer 27

Ileum

Question 28

This is a short dilated tube at the terminal end of the ileum

Answer 28

Large intestine

Question 29

This is the posterior dilated end of the large intestine located within the pelvic girdle

Answer 29

Cloaca

Question 30

A small opening at the posterior end of the cloaca

Answer 30

Cloacal opening/Vent

Question 31

This is a large reddish brown organ on the anterior portion of the pleuro-peritoneal cavity

Answer 31

Liver

Question 32

Stores bile

Answer 32

Gallbladder

Question 33

Come from the left and right lobes of the liver

Answer 33

Hepatic ducts

Question 34

A tiny duct connected to the neck of the gallbladder

Answer 34

Cystic duct

Question 35

The large duct formed by the cystic, hepatic and pancreatic duct. This is surrounded by the tissues of the pancreas and enters the duodenum

Answer 35

Common bile duct

Question 36

This is a small elongated and irregularly shaped gland located between the stomach and duodenum

Answer 36

Pancreas

Question 37

Conducts the pancreatic juice to the duodenum

Answer 37

Pancreatic duct

Question 38

Mesentery of the stomach

Answer 38

Mesogaster

Question 39

Mesentery of the spleen

Answer 39

Gastrosplenic ligament

Question 40

Mesentery of the liver

Answer 40

Falciform ligament; gastrohepatic ligament; hepatoduodenal ligament

Question 41

Mesentery of the small intestine

Answer 41

Mesenterium or mesentery proper

Question 42

Mesentery of the large intestine

Answer 42

Mesorectum