Question

need pig disection help check answers please !!!
fan and medal

Answer 1

4a. Identify structure labeled 1. (3 PTS )

4b. Why would the vena cava be classified as a vein? (3 PTS )



4c. Within the capillaries of the lungs, gases are exchanged by diffusion; oxygen diffuses from the
to the and carbon dioxide diffuses from the to the
_. (3 pts each)


4d. Trace the pathway of a red blood cell from the right atrium through the pulmonary circulation to the left atrium and from there to the foreleg and back to the heart. List the sequence of major blood vessels and chambers of the heart through which it will pass:

Answer 2

i figured out 1 is the Aorta

Answer 3

found out 4b
All veins carry blood back to the heart, except for the pulmonary vein. The Vena Cava empty into the right side of the heart, so they technically bring blood to the heart. Thus, they are veins

Answer 4

found 4c
Alveoli-blood -blood - Alveoli

Answer 5

4d is
to the superior and inferior vena cava,
then to the right atrium
through the tricuspid valve
to the right ventricle
through the pulmonic valve
to the pulmonary artery
to the lungs
The blood picks up oxygen in the lungs, and then flows from the lungs:
to the pulmonary veins
to the left atrium
through the mitral valve
to the left ventricle
through the aortic valve
to the aorta
to the body

Answer 6

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