rat lab Flashcards

1
Q

what organ does rat not have

A

gall bladder, appendix

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2
Q

whats a prepuce in rat

A

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

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3
Q

how many openings does female rat have

A
  1. anus, vagina, urethral opening
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4
Q

parietal and visceral

A

parietal - lines cavity
visceral - wraps around organs

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5
Q

guts 3 tubular portions and 2 sacs

A

oesophagus, small intestine, large intestine
stomach and caecum

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6
Q

which 2 large glands does secretion occur in

A

liver and pancreas

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7
Q

whats plyoric sphincter

A

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

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8
Q

3 regions of small intestine

A

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

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9
Q

whats part of GI tract

A

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

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10
Q

where does pancreas release stuff into

A

enzymes into duodenum for digestion
hormones into blood

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11
Q

why is liver very vascular in rats

A

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

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12
Q

what system is spleen part of

A

lymphatic

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13
Q

4 parts of large intestine

A

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

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14
Q

what do adrenal glands secrete

A

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

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15
Q

hard and soft palette

A

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

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16
Q

glottis and epiglottis

A

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

17
Q

hepartic portal vein

A

directing blood from the digestive organs to the liver

18
Q

mesentary tissue

A

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.

19
Q

hepatic duct joins into duodenum why

A

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

20
Q

which organs receives secretions from liver

A

duodenum

21
Q

pathway of food through rat

A

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

22
Q

whats parotid

A

major salivary glands

23
Q

what does spleen do

A

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