Usure about these two questions:?

Question

true or false:

1) Cardiac muscle cells have a branched shape. Other types of muscle cells do not.

(I THINK it's false because aren't smooth muscle cells also branched?)

2) There is a constant flow of blood through the capillaries even though the heart is forcing blood out into the arterial system only part of the time.

Answer 1

1. True

Smooth muscle cells are NOT branched.  You can review the differences and similarities between the 3 muscle types here:

http://www.uoguelph.ca/zoology/devobio/2...

2. True

The elastic recoil of the arterial system, the forward momentum of blood (provided by the heart during systole) and to some extent, the one-way aortic valve all help blood to keep flowing forward in the capillaries during diastole (when the heart is not pushing blood).

Answer 2

Not sure about number 2, but number 1 is true, because they are generally Y-shaped whereas smooth muscle cells are not.