Biology Lab 9 Frog and Pig Dissection

Frog tongue

Frog Glottis

What does the glottis do?

it helps with breathing

Frog stomach

Frog Small Intestine

Frog Large intestine

Frog Pancreas

Frog Liver

Frog Gallbladder

Frog Fat Bodies

Frog Vomerine teeth

Frog Maxillary teeth

Pig Tongue

1

Pig Esophagus

2

Pig Diaphragm

3

Pig Liver

4

Pig Gallbladder

5

Pig stomach

6

Pig Small intestine

7

Pig large intestine

8

Pig pancreas

1

Pig Aortic arch (artery)

2

Pig Common carotid (artery)

3

Pig common cartoid (artery)

4

Pig Umbilical (artery)

5

Pig Renal (artery)

6

Pig femoral (artery)

7

Pig External and internal illiac (artery)

8

Pig external and internal jugular (veins)

9

Pig superior vena cava (veins)

10

Pig Subclavian (veins)

11

Pig inferior vena cava (veins)

12

Pig renal (veins)

13

Pig external and internal illiac (veins)

14

Pig femoral (veins)

15

Pig umbilical (veins)

1

Fish Sinus venosus

2

Fish atrium

3

Fish Ventricle

4

Fish bulbous arteriosus

What does the sinus venosus of a fish do?

pacemaker cells are found here, they are responsible for generating rhythmic contractions of heart muscle tissue.

What does the bulbous arteriosus do?

receives blood from the ventricle and helps to maintain blood flow to the gill arches

1

Human superior vena cava

2

inferior vena cava

3

right and left atrium

4

right and left ventricle

5

pulmonary artery

6

pulmonary veins

7

aorta

8

brachiocephalic trunk

9

left common carotid artery

10

left subclavian artery

11

Bicuspid/mitral valve (atrioventricular)

12

Tricuspid (atrioventricular)

13

Aortic semilunar valve

14

pulmonary semilunar valve

15

Chordae tendineae

16

papillary muscles

What is the function of chordae tendineae and papillary muscles?

they are connective tissue and muscle tissue that connect the two atrioventricular valves and aid in preventing backflow

17

Interventricular septum

1

Cross section artery

2

Cross section vein

neutrophil

lymphocyte