Exercise No.8 (External Anatomy of the Frog)

Question 1

Other name for Frog

Answer 1

Rana Vittigera

Question 2

Used for killing the frogs for dissection

Answer 2

Chloroform

Question 3

Amount of formalin to preserve the frog

Answer 3

5-10% Formalin

Question 4

Steps in examining the frogs:

Answer 4

1. Presence of vocal sacs
2. Size of the body
3. Shape of the snout
4. Enlarged innermost digit
5. Swollen Thumb

Question 5

Parts of the frog that will be pinned to the pan:
It is the most anterior border of the head

Answer 5

1. Snout

Question 6

Parts of the frog that will be pinned to the pan:
It is the vestigial eye, located between the eyeballs

Answer 6

2. Browspot

Question 7

Parts of the frog that will be pinned to the pan:
These are bulging structures which consists of three eyelids

Answer 7

3. Eyeballs

Question 8

Parts of the frog that will be pinned to the pan:
The third eyelid is called

Answer 8

Nictitating Membrane

Question 9

Parts of the frog that will be pinned to the pan:
These are two openings which are anteriorly located

Answer 9

4. External Nares

Question 10

Parts of the frog that will be pinned to the pan:
These are two flat, rounded, structures located laterally behind the eyeballs

Answer 10

5. Tympanic Membrane

Question 11

Parts of the frog that will be pinned to the pan:
It is the anterior opening of the frog’s body

Answer 11

6. Mouth

Question 12

Parts of the frog that will be pinned to the pan:
It is the main mass of the body

Answer 12

7. Trunk

Question 13

Parts of the frog that will be pinned to the pan:
The upper part is the forelimb while posterior part is the hindlimb

Answer 13

8. Limbs

Question 14

Parts of the frog that will be pinned to the pan:
It is composed of the upper arm which is near the main mass of the body

Answer 14

Forelimb

Question 15

Parts of the frog that will be pinned to the pan:
It is on the wrist

Answer 15

Carpus

Question 16

Parts of the frog that will be pinned to the pan:
The hand is the

Answer 16

Manus

Question 17

Parts of the frog that will be pinned to the pan:
It is made up of the thigh

Answer 17

Hindlimb

Question 18

Parts of the frog that will be pinned to the pan:
The ankle is called the

Answer 18

Tarsus

Question 19

Parts of the frog that will be pinned to the pan:
The feet is called technically the

Answer 19

Pes

Question 20

Parts of the frog that will be pinned to the pan:
The toes and the fingers is called

Answer 20

Digits

Question 21

Parts of the frog that will be pinned to the pan:
It is between the digits in the hindlimb is a

Answer 21

Web

Question 22

Why is the frog used as representative animal in general zoology

Answer 22

Parts are very similar to human

Question 23

What are the functions of the nictitating membrane

Answer 23

Protects the eyes from water and mud

Question 24

What is the browspot

Answer 24

Represent as the vestigial eye

Question 25

What is the functions of the webbed foot

Answer 25

To help them swim quickly

Question 26

Morphological characteristics that differentiates male frogs from females

Answer 26

Male frogs has vocal sacs and a copulatory pad on forelimbs, female frogs don’t have these features

Question 27

Where do you find the axillary and inguinal regions of the frog

Answer 27

Upper leg, Thorax

Question 28

What is a prehallux

Answer 28

Growing Undeveloped Digit