Lab: Respiratory System of Frog

Question 1

is a form of respiration in which gas exchange occurs across the skin or outer integument of the frog rather than the lungs.

Answer 1

Cutaneous repiration

Question 2

What do you call winter sleep?

Answer 2

hibernation

Question 3

What do you call summer sleep?

Answer 3

aestivation

Question 4

where does mouth respiration occurs?

Answer 4

buccopharyngeal cavity

Question 5

consists of mucous membrane and rich supplied with blood capillaries

Answer 5

buccal cavity

Question 6

Two phases of respiratory mechanism

Answer 6

inspiration and expiration

Question 7

takes place at the buccopharyngeal cavity

Answer 7

bucco-pharyngeal respiration

Question 8

consists of moist mucus membrane and richly supplied with blood capillaries

Answer 8

buccal cavity

Question 9

is a slender ring surrounding the larynx

Answer 9

cricoid cartilage

Question 10

how do frogs croak?

Answer 10

breathing then closing its nostrils

Question 11

what epithelium covers the inner surface of alveoli

Answer 11

single layer of epithelial cells

Question 12

The breathing that takes place on land in the atmospheric air by the help of lung

Answer 12

pulmonary respiration

Question 13

median-slit like glottis on the floor of pharynx opening into the larynx

Answer 13

laryngo-tracheal chamber

Question 14

is a small sac whose walls are supported by two arytenoid and one cricoid cartilages

Answer 14

larynx

Question 15

what includes the respiratory tract

Answer 15

external nostrils, nasal chambers, internal nostrils, bucco-pharyngeal cavity, glottis, laryngo-tracheal chamber, and pair of bronchi.

Question 16

many chambers of lungs

Answer 16

alveoli

Question 17

how do air enters and leaves the lungs

Answer 17

respiratory tract

Question 18

what other type of organ is the lungs of the frog that enables them to float in whater.

Answer 18

hydrostatic organ

Question 19

what supports the wall of pharynx?

Answer 19

two arytenoid and one cricoid cartilage

Question 20

are pair of semilunar valves which rest upon the cricoid cartilage

Answer 20

arytenoid cartilage

Question 21

how is lungs separated from each other?

Answer 21

septa

Question 22

What organ is responsible for respiration when frog is in deep sleep?

Answer 22

Skin

Question 23

During gaseous exchange the ____ first dissolves in moisture present over the body and the diffuses into the _________ circulating in the___________

Answer 23

Oxygen, blood, blood capillaries

Question 25

Are movements required when cutaneous respiration?

Answer 25

No since the skin is always exposed to air or water.

Question 26

What specific skin of the frog do gas exchange occur

Answer 26

Outer integument

Question 26

What does cutaneous means?

Answer 26

Breathing through the skin

Question 27

How does carbon dioxide pass out from the blood to its surunding medium? In whta method?

Answer 27

Diffusion

Question 28

What do buccal cavity consist of?

Answer 28

- moist mucuos membrane - richly supplied blood capillaries

Question 29

Muscle that lies below the mouth cavity. It connects hyoid and sternum when it contracts,

Answer 29

Sternohyal

Question 30

The buccal cavity absorb oxgen through contraction and expansion of?

Answer 30

Sternohyals and petrohyals

Question 31

Where does oxygen dissolvs in bucco-pharyngeal respiration?

Answer 31

moist Mucous cavity

Question 32

Where does the waste product CO2 passes out in bucoo-pharyngeal expiration?

Answer 32

External nares.

Question 33

Muscle lie outside the mouth cavity and the upper and lower ends connect squamosal bone and hyoid respectively

Answer 33

Petrohyals

Question 34

What resration do frogs uses when they are at water and when they are at land

Answer 34

Water- Cutaneous Respiration Land- Pulmonary Respiration

Question 35

What is the oragn in aerial rspiration

Answer 35

Lungs

Question 36

What other type of organ is the lungs?

Answer 36

Hydrostatic organ

Question 37

a pair of thin walled, oval, hollow, soft and spongy elastic sacs.

Answer 37

Lungs

Question 38

How many layers doe the lungs have?

Answer 38

3

Question 39

This is a series of chambers that greatly increases the surface area to air for gaseous

Answer 39

Alveoli

Question 40

How are alveoli separated from each other

Answer 40

Septa

Question 41

Location of lungs

Answer 41

Anterior part of the body cavity, either side of the heart

Question 42

What happens during inhalation?

Answer 42

- Contraction of the sternohyal muscle - Glottis open - Lifting of petrohyal muscle

Question 43

What happens during expiration

Answer 43

- Air is kept in the lungs for short time - Glottis will open - Buccal floor is raised then glotti close and external nares are open

Question 44

Two phases of respiratory mechanism

Answer 44

Inhalation and expiration

Question 45

Trace the pathway of air from the atmosphere to the lungs

Answer 45

AIr enters the external nares then passes through the olfactiry canal. Then enters th internal nares then passes through t he buccal cavity and th glottis. Then passe through the larynx, and finally the lungs.