Frogs

Question 1

Tympanic membrane

Answer 1

Location: just behind the eye, circular

Function: senses vibrations, sensitive to species call, hearing

Question 2

Nictitating membrane

Answer 2

Location: eye

Function: covers and protects the eye (NOT eyelid)

Question 3

Vomerine teeth

Answer 3

used for grasping

Question 4

Maxillary teeth

Answer 4

used for chewing

Question 5

Tongue

Answer 5

Location: attached to anterior of floor of the mouth

Function: catching prey

Question 6

Brow spot

Answer 6

located between the eyes on top of head

Question 7

Forelimbs vs. hind limbs

Answer 7

forelimbs in front (arms), hing limbs in back (legs)

Question 8

Dorsolateral dermal plica

Answer 8

two lines running parallel to one another along the frog’s back

Question 9

Order of digestion

Answer 9

mouth, esophagus, stomach, duodenum, small intestine, large intestine, anus

Question 10

Stomach

Answer 10

Location: top of digestive tract

Function: mechanical and chemical digestion of food, contains rugae

Question 11

Rugae

Answer 11

stomach interior, folds that increase the surface area of the stomach for increased absorption efficiency

Question 12

Small intestine

Answer 12

Location: start of intestine after duodenum, pictured on left side

Function: chemical digestion and nutrient absorption

Question 13

Large intestine

Answer 13

Location: toward end of digestive tract, large/wide part of intestine
Function: water absorption and fecal packing

Question 14

Pancreas

Answer 14

Location: centrally located, white finger-like gland (looks like a chicken’s foot)

Function: secretion of digestive juices and insulin

Question 15

Gall bladder

Answer 15

Location: small, dark green sac, centrally located under the liver

Function: holds bile for enzymatic digestion

Question 16

Liver

Answer 16

Location: 3 lobes (right,median, left), at top of body cavity

Function: makes bile, stores carbs, metabolizes fat and other compounds

Question 17

Fat bodies

Answer 17

location: throughout the main body cavity, small yellowish structures

Function: energy storage (lots of them indicates a healthy frog!)

Question 18

Spleen

Answer 18

Location: right side, pictured as purplish, small, next to stomach/under some fat bodies

Function: maintenance of blood

Question 19

Heart

Answer 19

3 chambers (ventricle, R atrium, L atrium)

Function: circulation of blood

Question 20

Ventricle

Answer 20

receives blood from atria, pumping chamber of the heart

Question 21

Right atrium

Answer 21

collecting point of blood from sinus venous

Question 22

Left atrium

Answer 22

collecting point of blood from lungs

Question 23

Lungs

Answer 23

Location: hide behind liver, very weak-looking, gray

Function: site of gas exchange

Question 24

Kidneys

Answer 24

Location: 2, bottom of body cavity

Function: elimination of waste, regulation of internal environment

Question 25

Urinary bladder

Answer 25

Location: very bottom of body cavity Function: urine storage

Question 26

Cloaca

Answer 26

common chamber receiving the openings of the urinary tract, oviducts/vas deferens, and the intestine