Digestive and respiratory system Flashcards
main parts of the digestive tract
mouth, oral or buccal cavity, pharynx, esophagus, stomach, small intestine, large intestine, rectum, cloaca
digestive glands
liver, gallbladder, pancreas
differentiate alpha and beta cells in the pancreas
alpha - secrete glucagon
beta - secrete insulin
pyramidal shaped cells in the pancreas
acini
differentiate acini and islets of Langerhans cells
acini - exocrine function: release pancreatic enzyme to interlobular duct
islet - endocrine function: release pancreatic enzyme directly to the blood
prominent depression at the tip of the upper jaw
median subrostral fossa
median elevation at the tip of the lower jaw
tuberculum prelinguale
pair of deep grooves found at the inner margin of the upper jaw
sulcus marginalis
what receives the elevation at the lower jaw
sulcus marginalis
row of small teeth located along the margin of the upper jaw
maxillary teeth
set of teeth found on the roof of the mouth
vomerine teeth
bulging regions at the posterior half of the roof of the mouth
eyeball prominences
pair of openings on the posterolateral side of the eyeballs
openings of the eustachian tube
two slit-like openings in the posterolateral corner of the floor of the tongue
vocal sacs
behind the mouth is the __
pharynx
pharynx leads to the opening of a short distensible tube
esophagus
laryngeal prominence with a vertical slit-like opening ventral to the esophagus
glottis
digestive tract is suspended by
mesenteries
cavities of the frog abdome
pericardial cavity - heart
pleuroperitoneal cavity - lungs and other internal organs or viscera
the two cavities in the abdomen is separated by
transverse septum
glistening membrane on the inner side of the muscular body wall
parietal peritoneum
parietal peritoneum extends to the visceral organs as the
visceral peritoneum or serosa
large, trilobed, brownish organ occupying the anterior half of the pleuroperitoneal cavity
liver
function of the gallbladder
stores the bile secreted by the liver
position of stomach relative to liver
dorsal
portion of dorsal mesentery supporting the stomach
mesogaster
part of the stomach nearest the esophagus
cardiac region
next region to the cardiac region of the stomach that bulges anteriorly
fundus
the stomach terminates into a narrow end
pylorus
longitudinal folds in the inner wall of the stomach
rugae
anterior-most segment of the small intestine
duodenum
mesentery between the pylorus and duodenum
pancreas
function of pancreas
provide digestive enzymes and bicarbonates that are secreted into the small intestine
part of the dorsal mesentery supporting the small intestine
mesentery proper
chamber that serves as a common passageway to the outside
cloaca
part of the dorsal mesentery supporting the large intestine
mesorectum
cloa terminates at the
cloacal aperture
external vs internal respiration
external - exchange of gases between environment and respiratory organs
internal - exchange of gases between body fluids and tissue cells
function of the eustachian tube
connects the mouth cavity with the cavities of the middle ear, equalizing air pressure
where does gas exchange take place
alveoli
larynx is connected to the lungs through an extremely short tube
bronchus
cartilages that support the larynx
anterior pair - arytenoid cartilages
posterior pair - cricoid cartilages
TRUE OR FALSE: maxillary teeth is used for chewing
false
function of vomerine teeth
hold food in place
function of vocal sacs
amplify mating call
function of bile
fat digestion
function of stomach
initial digestion of food
function of small intestine
final digestion of food, absorption of food
function of large intestine
stores undigested material
what ducts join to form the common bile duct
hepatic and cystic
function of common bile duct
where the bile is released
controls flow of food to the stomach
cardiac sphincter
controls flow of food to the small intestine
pyloric sphincter
coiled portion of the small intestine connected to the large intestine
ileum
function of fat bodies
hibernating and mating
function of spleen
removing old blood cells
flow of air in animals
nostrils -> nasal cavity -> pharynx -> larynx -> trachea -> bronchus -> bronchioles -> alveoli -> blood
why is alveoli the site of gas exchange
presence of capillaries