Lab 1 - Rat Dissection Flashcards Preview

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Flashcards in Lab 1 - Rat Dissection Deck (40)
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1

2 major body cavitites

thoracic (heart, lungs) and abdominal (intestines, stomach, liver...)

2

back of human/ top of rat called

dorsal (like dolphin)

3

lateral

away from midline

4

medial

towards the midline

5

front of human/ bottom of rat called

ventral

6

front of human/front of rat

anterior

7

back of rat/ back of human

posterior

8

how is friction between organs avoided?

organs encased in membranes filled with fluid

9

mesothelial cells

produce serous fluid. Found in the bottom of the parietal peritoneum

10

membrane in direct contact with the heart

visceral pericardium

11

what fills the cavities of the peritoneal, pleural and pericardial membranes

serous fluid

12

what separates the throacic and abdominal cavities?

diaphragm

13

membrane which surrounds the lung and is in contact with other organs/ body wall

parietal pleural membrane

14

which organs are found inside the peritoneal cavity

none (only serous fluid)

15

term given to kidneys and why

"retro peritoneal" kidneys based on the fact that they are not with the peritoneal membrane

16

mesentery

double layer of parietal peritoneum. Contains blood vessels, encased in fat, which carry deoxygenated, nutrient rich blood to the liver (hepatic portal vein)

17

opening to the trachea

glottis

18

differences between rat and human

- teeth: incisors lack enamel. leads to chisel-shape
- gall bladder absent in rats
- Y-shaped uterus in rats vs. pear-shaped

19

human pericardium

thick, strong and fibrous

20

membrane in direct contact with the small intestines

visceral peritoneum

21

when cutting through the skin of the rat, what is the first membrane encountered?

parietal peritoneum

22

the spleen has an important role in digestion... true/false?

FALSE - the spleen is part of the lymphatic system

23

what is inside the pericardial cavity?

serous fluid

24

does the oesophagus lie dorsal or ventral to the trachea

dorsal

25

2 glands in which secretion occurs in the digestive system

liver (largest) and pancreas

26

translucent region of the stomach

- lateral and anterior.
- FOOD STORAGE.
- no glands.
- stratified squamous epithelium

27

pyloric region of the stomach

- medial and posterior.
- opaque.
- DIGESTION.
- Glands release acid and enzymes.

28

pyloric sphincter

controls the release of chyme into the duodenum

29

three regions of the small intestine

Duodenum
Jejunum
Ileum
("DJ ileum")

30

pancreas

- lies close to the greater curvature of the stomach
- exocrine cells secrete enzymes into duodenum
- endocrine cells secrete hormones into the bloodstream
- (rat pancreas) pink lobules suspended in mesentery