rat lab

Question 1

what organ does rat not have

Answer 1

gall bladder, appendix

Question 2

whats a prepuce in rat

Answer 2

prepuce is a fold of skin that covers the penis when it is not erect

Question 3

how many openings does female rat have

Answer 3

3. anus, vagina, urethral opening

Question 4

parietal and visceral

Answer 4

parietal - lines cavity
visceral - wraps around organs

Question 5

guts 3 tubular portions and 2 sacs

Answer 5

oesophagus, small intestine, large intestine
stomach and caecum

Question 6

which 2 large glands does secretion occur in

Answer 6

liver and pancreas

Question 7

whats plyoric sphincter

Answer 7

smooth muscle that controls flow of chyme into first part of small intestine (duodenum)

Question 8

3 regions of small intestine

Answer 8

duodenum (leaving stomach) jejunem, ileum (entering caecum)

Question 9

whats part of GI tract

Answer 9

mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum, and anus, along with accessory organs like the liver, gallbladder, and pancreas

Question 10

where does pancreas release stuff into

Answer 10

enzymes into duodenum for digestion
hormones into blood

Question 11

why is liver very vascular in rats

Answer 11

as its large and has 4 lobes and CT is very thin.
Receives venous blood via heportic vein and oxygenated blood via hepartic artery

Question 12

what system is spleen part of

Answer 12

lymphatic

Question 13

4 parts of large intestine

Answer 13

caecum, colon, rectum, anus.
For reabsorption of water and formation of faeces

Question 14

what do adrenal glands secrete

Answer 14

outer crust (cortex) - steroid hormones
inner core (medulla) - adrenaline

Question 15

hard and soft palette

Answer 15

hard is infront of soft and is separates the oral cavity from the nasal cavity

Question 16

glottis and epiglottis

Answer 16

epiglottis is a flap that closes when food and water enter to direct them to oesophagus
glottis vibrates producing sound waves

Question 17

hepartic portal vein

Answer 17

directing blood from the digestive organs to the liver

Question 18

mesentary tissue

Answer 18

The mesentery is made up of two layers of peritoneum, which is a serous membrane that lines the abdominal cavity and covers the abdominal organs.

Question 19

hepatic duct joins into duodenum why

Answer 19

as gall bladder is absent and it transports bile from the liver

Question 20

which organs receives secretions from liver

Answer 20

duodenum

Question 21

pathway of food through rat

Answer 21

stomach, duodenum, jejuneum, ileum, caecum, colon, rectum, anus

Question 22

whats parotid

Answer 22

major salivary glands

Question 23

what does spleen do

Answer 23

filters blood, stores blood, during fetal development, the spleen is involved in the production of blood cells