side view

Dissection of the Fetal Pig (Sus scrofa)

place where latex paint was injected into the jugular vein and the carotid artery

1.umbilical cord-

Connection to placenta

peritoneum/umb arts/liver

peritoneum (smooth inner lining of abdominal cavity)

umbilical arteries

2.liver-produces bile, etc

liver/spleen/stomachseparate lobes of the liver

3. spleen-Breaks down old rbc’s

stomach

intestine sm/lge

4. small intestine-Digests and absorbs nutrients

5. large intestine-Re-absorbs water and compactsfeces

gall bladder

6. gall bladder-

Stores bile (fat detergent)

bile duct (to duodenum)

bile duct (closeup)

gall bladder

bile duct

stomach/duodenum/spleen

7.stomach-

Begins protein digestion

duodenum

spleen

pyloric sphincter/bile duct

8. pyloric sphincter (=valve)

Controls flow of chime into duodenum

bile duct (to duodenum)

9. Pancreas-Secretes enzymesAnd makes insulin

pancreaspancreas

duodenum stomach

splee

n

rectum

10. rectum–

Feces stored before being

expelled

abdominal aorta (zoom)12. inferior vena cava-Returns blood to heart from lowerextremities

11. aorta-

Biggest artery of body

kidneys

13. kidneys-

Filter wastes (urea) from blood

ureter (tube to urinary bladder)

diaphragm14. Diaphragm-

Separates chest cavity from abdomen.

Main muscle

of respiration.

larynx

larynx

trachea (=windpipe)

trachea

16. trachea-

“windpipe”

Allows O2 and CO2 to move from throat to lungs

lungs

right lung left lung

17. lungs-Bring oxygen into bloodstream, Excrete CO2 into air

pericardial sac18. heart-

Pumps blood through

blood vessels

pericardial sac (encloses the heart)

heart ventricles

19. right ventricle (pumps blood to lungs)

20. left ventricle (pumps blood to the entire body – except the lungs)

right atrium

21. right atrium (receives de-oxygenated blood from the body)

left atrium

22. left atrium (receives oxygenated blood from the lungs)

pulmonary artery

23. pulmonary artery (sends de-oxygenated blood to the lungs)

right atriumleft atrium

aorta

24. aorta (sends oxygenated blood to the entire body under high pressure)

pulmonary artery

right lung

coronary artery