Muscle Tissue Quiz

Each muscle cell (fiber) is surrounded by this tissue:

• perimysium

• endomysium

• epimysium

• sarcolemma

This statement best describes the muscle property of extensibility:

• muscles recoil to original shape

• muscles shorten forcefully

• muscles can stretch when needed

• muscles contract when stimulated

During muscle contraction, this region shortens (Select all that apply):

• A band

• I band

• H zone

These statements about myosin myofilaments are all true except:

• are thicker than actin

• make up the H zone

• attached to the Z disc

• attached to filaments that form the M line

True/False: Energy is needed to make muscles contract.

• True

• False

Tags

NGSS.HS-LS1-7

This kind of contraction results in an increase of tension, but the length of the muscle does not change:

• isometric

• isotonic

• concentric

• eccentric

These structural characteristics apply to cardiac muscle (Select all that apply):

• single, centrally located nucleus

• spindle shaped

• striated

• gap junctions hold cells to one another

These are all properties of smooth muscle except:

• contracts when stretched

• autorhythmic

• responds in all-or-none fashion to action potentials

• exhibits relatively constant tension