Muscle Histology

Question 1

Groups of actin and myosin filaments

Answer 1

myofibrils

Question 2

Layer of connective tissue surrounding each muscle fiber

Answer 2

endomysium

Question 3

Group of several muscle fibers

Answer 3

fasicle

Question 4

Outer covering of the fasicle

Answer 4

perimysium

Question 5

Groups of fasicles form a muscle. Muscle covered with connective tissue called…

Answer 5

epimysium

Question 6

What type of connective tissue is the epimysium

Answer 6

dense irregular CT

Question 7

What type of connective tissue is the perimysium

Answer 7

dense irregular CT

Question 8

What type of connective tissue is the endomysium

Answer 8

loose irregular CT

Question 9

Boundary which defines a sarcomere

Answer 9

Z line to Z line

Question 10

What’s the light stripe in the sarcomere structure?

Answer 10

I band ( line and thin/actin filaments)

Question 11

What’s the dark stripe in the sarcomere structure?

Answer 11

A band (full length of the thick/myosin filaments)

Question 12

M line in sarcomere

Answer 12

anchor point for thick filaments

Question 13

H zone in sarcomere

Answer 13

Contains thick filaments. It’s size changes depending ont he state of contraction

Question 14

What does smooth muscle lack?

Answer 14

Sarcomeres and T tubules