Muscles

Question 1

Approximately what % of body weight do muscles account for?

Answer 1

40%

Question 2

What does the metabolism occurring in muscles produce?

Answer 2

heat essential for the maintenance of body temp

Question 3

What are the 2 features used to characterize muscles?

Answer 3

-presence/absence of light/dark stripes in muscle cells (striated or non-striated)
-voluntary/involuntary control

Question 4

What are the light and dark stripes in muscle cells?

Answer 4

striations/myofibrils

Question 5

What type of muscles have stripes?

Answer 5

striated muscles

Question 6

What is a myofibril?

Answer 6

a long row of repeated segments called sarcomeres

Question 7

What is a sarcomere?

Answer 7

the basic unit of striated muscle tissue