1. Because the smooth muscle layer is thicker in arteries than in veins, which of the following is a logical conclusion?

Select one:

a. Arteries need more muscle than veins because the function of arteries is more important than the function of veins is.

b. Arteries are more fragile than veins and need to be protected with more muscle.

c. The function of arteries depends on constricting smooth muscles, whereas the function of veins does not.

d. Arteries and veins serve similar functions in most organisms.

 

2. Skeletal muscle tissue and cardiac muscle tissue have some different structures and functions. What cardiac muscle structures unify the heart’s electric current, allowing the entire organ to contract smoothly?

Select one:

a. chondrocytes

b. muscle striations

c. intercalated disks

d. cardiac pacemakers

 

3. Based on your observations of skeletal muscle tissue in Experiment 3, which of the following describes characteristics of skeletal muscle tissue?

Select one:

a. The fibers are not striated and cells are indistinguishable from each other.

b. The fibers are striated and have multinucleated cells.

c. The fibers are striated and each cell has a single nucleus.

d. The fibers are not striated and do not run in an observable direction.

 

4. What tissues make up each type of tunica on the arteries and veins?

5. What tissues make up each type of tunica on the arteries and veins?

6. How do the structures of dendrites and axons suit their functions?

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Status NEW Posted 03 Jul 2017 01:07 AM My Price 6.00

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