Flashcards in Lab 1 - Rat Dissection Deck (40)
2 major body cavitites
thoracic (heart, lungs) and abdominal (intestines, stomach, liver...)
back of human/ top of rat called
dorsal (like dolphin)
away from midline
towards the midline
front of human/ bottom of rat called
front of human/front of rat
back of rat/ back of human
how is friction between organs avoided?
organs encased in membranes filled with fluid
produce serous fluid. Found in the bottom of the parietal peritoneum
membrane in direct contact with the heart
what fills the cavities of the peritoneal, pleural and pericardial membranes
what separates the throacic and abdominal cavities?
membrane which surrounds the lung and is in contact with other organs/ body wall
parietal pleural membrane
which organs are found inside the peritoneal cavity
none (only serous fluid)
term given to kidneys and why
"retro peritoneal" kidneys based on the fact that they are not with the peritoneal membrane
double layer of parietal peritoneum. Contains blood vessels, encased in fat, which carry deoxygenated, nutrient rich blood to the liver (hepatic portal vein)
opening to the trachea
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
thick, strong and fibrous
membrane in direct contact with the small intestines
when cutting through the skin of the rat, what is the first membrane encountered?
the spleen has an important role in digestion... true/false?
FALSE - the spleen is part of the lymphatic system
what is inside the pericardial cavity?
does the oesophagus lie dorsal or ventral to the trachea
2 glands in which secretion occurs in the digestive system
liver (largest) and pancreas
translucent region of the stomach
- lateral and anterior.
- FOOD STORAGE.
- no glands.
- stratified squamous epithelium
pyloric region of the stomach
- medial and posterior.
- Glands release acid and enzymes.
controls the release of chyme into the duodenum
three regions of the small intestine