Frog Dissection

Question 1

Nicitating membrane

Answer 1

Clear membrane that is attached to the bottom of the eye and is covering the eye when the frog is under water

Question 2

Tympanic membrane

Answer 2

A circular structure just behind the eyes on the frogs head used for hearing

Question 3

Esophagus

Answer 3

Opening in the back of the mouth that leads to the stomach

Question 4

Eustachian tubes

Answer 4

Two openings on each side of the mouth near the angles of the jaws used to equalize pressure in the inner ear while the frog is swimming

Question 5

Glottis

Answer 5

Hole that opens to the lungs. Used for breathing and vocalizing. Just before the glottis.

Question 6

Vomerine teeth

Answer 6

Teeth on the roof of the mouth. Used to position prey directly over the esophagus

Question 7

Maxillary teeth

Answer 7

Teeth on the edge of the mouth. Used to capture prey.

Question 8

External nares (nostrils)

Answer 8

Used to take in oxygen while frog is eating

Question 9

Fat bodies

Answer 9

Spaghetti like structure with a yellow color. Used for energy storage.

Question 10

Peritoneum

Answer 10

A thin membrane covering the body cavity. Just below the skin. Protects the internal organs.

Question 11

Liver

Answer 11

Three lobes. Organ use to make digestive enzyme bile.

Question 12

Heart

Answer 12

At the top of the liver. Used to pump blood.

Question 13

Lungs

Answer 13

Spoony organs behind the heart

Question 14

Gall bladder

Answer 14

Small green sack (looks like a booger) under the liver. Used to store the bile that was made by the liver.

Question 15

Stomach

Answer 15

The curving tube underneath the liver. First major cite of chemical digestion. The stomach flows into the small intestine.

Question 16

Phyloric sphincter valve

Answer 16

Regulates the exit of digestives food from the stomach to the small intestine.

Question 17

Duodenum

Answer 17

Straighter first section of small intestine.

Question 18

Pancreas

Answer 18

The yellowish section that runs parallel to the stomach. Digestive gland that inserts pancreatic juice into the duodenum. Also makes insulin to regulate blood sugar.also receives bile from the liver and gall bladder.

Question 19

Bile duct

Answer 19

The duct where bile and pancreatic juice are bridged over and received by the duodenum.

Question 20

Mesenteries

Answer 20

Holds the coils together

Question 21

Large intestine

Answer 21

The wide basin of the digestive system.

Question 22

Urinary bladder

Answer 22

The thin walled sac that holds urine.

Question 23

Cloaca

Answer 23

Urine, sperm, and eggs exit here.

Question 24

Spleen

Answer 24

Dark red spherical object that hold blood

Question 25

Kidneys

Answer 25

Flattened bean shaped organs located on the lower back of the frog, near the spine. Often a dark color. Used to filter waste from the blood.

Question 26

Ureter

Answer 26

The thin white tube that carries urine from the kidneys.

Question 27

Ovaries

Answer 27

Produce eggs.

Question 28

Testis

Answer 28

Yellowish organ that produces sperm