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California State University, Northridge BIO 101 Chapter 40 1)An earthworm moves by alternating muscular contractions against a         2

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California State University, Northridge

BIO 101

Chapter 40

1)An earthworm moves by alternating muscular contractions against a

 

 

 

 

2. The connective tissues that connect muscles to bones are called:

 

 

 

3. The vertebrate skeleton consists of    .

 

 

 

4.            Which of these animals is correctly matched with its type of skeleton?

 

5.            The thick filaments of a myofibril are composed of:

 

 

 

6.            At a molecular level, muscle contraction depends on interaction between

 

 

 

 

7 The sarcoplasmic reticulum helps to trigger muscle cell contraction by releasing              into the cytoplasm

 

 

8

 

 

 

9 Osteoporosis is characterized by          

 

10. During development of a mammalian fetus, is gradually replaced by

                .

 

 

 

 

12           Which of the following are striated muscle types? (check all that apply)

 

13           Skeletal muscle:

 

 

14           Your flexor and extensor muscles in your arm are examples of  

 

 

 

15. Which of the following animals have exoskeletons? 

 

 

 

 

 

17. What would happen to a person who was poisoned with a chemical that blocks the production of neurotransmitters at neuromuscular junctions?

 

 

18           Which of the following human muscles have the largest motor units?

 

19           Skeletal muscle appears striped because of:

 

20           A muscle fiber generates maximum contractile force when:

 

 

21           Which of these animals have endoskeletons? (check all that apply)

 

 

22. Cnidarians have a(n)                skeleton.