Objective 3

Question 0

Describe Epimysium connective tissue sheaths

Answer 0

Epimysium - an overcoat of dense irregular CT that surrounds the entire muscle

Question 1

What are the three connective tissue sheaths for skeletal muscles?

Answer 1

Epimysium
Perimysium
Endomysium

Question 2

Describe Perimysium tissue sheaths

Answer 2

Perimysium - fibrous CT that surrounds groups of muscle fibers called fascicles

Question 3

Describe Endomysium tissue sheaths

Answer 3

Endomysium - fine sheath of reticular CT surrounding each muscle fiber

Question 4

How are muscles served by nerve and blood supply?

Answer 4

Each muscle is served by one nerve, an artery, and one or more veins

Question 5

How is each skeletal muscle fiber supplied with nerves?

Answer 5

Each skeletal muscle fiber is supplied with a nerve ending that controls contraction

Question 6

What do contracting fibers require?

Answer 6

Contracting fibers require continuous delivery of oxygen and nutrients via arteries

Question 7

How are wastes removed from muscles?

Answer 7

Wastes must be removed via veins

Question 8

Describe how skeletal muscles are attached

Answer 8

Most skeletal muscles span joints and are attached to bone in at least two places

Question 9

How do muscles move bone?

Answer 9

When a muscles contract the movable bone, the muscle’s insertion moves toward the immovable bone, the muscle’s origin

Question 10

Describe how muscles attach directly

Answer 10

Epimysium of the muscle is fused to the periosteum of a bone

Question 11

Describe how muscles attach indirectly

Answer 11

Connective tissue wrappings extend beyond the muscle as a tendon or a sheet-like aponeurosis