Quiz - CH-10 (The Structure and Function of Skeletal Muscles) - ANATOMY

Which region of the sarcomere does not change in length during a muscle contraction?

A band

The dense connective tissue that surrounds a muscle organ and is continuous with that muscle's tendon is called the _________.

epimysium

Which of the following lists the structures associated with skeletal muscle in order from smallest to largest?

myofilament, myofibril, muscle fiber, fascicle

Which statement about muscle attachments is false?

During contraction, the origin is pulled toward the insertion.

This myofilament is made mostly of the protein actin.

C

This region at the center of the scaromere contains only thick myosin filaments and no thin actin filaments.

B

This structure anchors and organizes thin actin filaments.

E

This region contains only thin actin filaments.

A

This myofilament is made mostly of the protein myosin.

H

This protein helps the sarcomere reutrn to its original length if it has been stretched too much.

D

This region corresponds to the A-band when viewing skeletal muscle tissue under the microscope.

F

This region represents the entire sarcomere.

G