Hisotlogy Of Muscle

Question 1

What type of muscle tisse makes 40% of body weight

Answer 1

Skeletal muscles

Question 2

T or f
Perimysium covers fascicle

Answer 2

T

Question 3

Most important component of
skeletal muscles ?

Answer 3

Muscle fibers

Question 4

T or f
Muscle grow through hyperplasia

Answer 4

F. Hypertrophy

Question 5

myofilaments
Are Separated by

Answer 5

sarcoplasmic reticulum

Question 6

What are the Contractile organelles of
skeletal muscle

Answer 6

Myofibril

Question 7

Whats the functional unit of myofibrils

Answer 7

Sarcomere

Question 8

Whats responsibile for stration in myofibrils

Answer 8

Sacromeres

Question 9

Each sarcomere is separated from
the next by

Answer 9

Z disc

Question 10

Sarcomeres are composed of

Answer 10

Actin and myosin

Question 11

the part of the A band
that contains only thick filaments
(myosin)

Answer 11

H zone

Question 12

Myofibrils are built of 3 kinds of protein
Name them

Answer 12

Contractile
Regulatory
Structural

Question 13

Name two regulatory protiens

Answer 13

Troponin tropomyosim

Question 14

What can you find outa epimysium

Answer 14

Fascia

Question 15

What type of band gives the light striation seen
underneath the microscope

Answer 15

I band

Question 16

…….is the middle of the sarcomere
and is composed of supporting proteins
that hold the thick filaments together

Answer 16

M line

Question 17

……center part of A band where
no thin filaments occur

Answer 17

H zone

Question 18

Role of t tubules

Answer 18

rapid transmission of action potential to cell
Regulate calcium concentration
Increase efficiency of muscle contraction

Question 19

an autoimmune disease in which
autoantibodies attach to acetylcholine receptors,
blocking their availability to acetylchoine.

Answer 19

Myasthenia gravis

Question 20

Symptom of myasthenia gravis

Answer 20

Skeletal muscles including diaphragm weaken
gradually.