Histo EOW Review 14Jul2023

Which of the following is correct?

• Endomysium surrounds individual muscle fibers.
• epimysium surrounds individual muscle fibers.
• Perimysium surrounds individual muscle fibers.
• Endomysium is made of dense irregular connective tissue.

Identify the structure indicated by the arrow.

• M-line

• I-band

• Z-line

• A-band

Identify the structure outlined by the box.

• perimysium

• endomysium

• epimysium

• loose connective tissue

Identify the structure outlined by the circle.

• myofibril

• muscle fiber

• sarcomere

• muscle fascicle

To which epidermal layer does the indicated cell belong?

• stratum granulosum

• stratum corneum

• stratum basale

• stratum spinosum

Identify the layer of epidermis indicated by the arrow.

• stratum granulosum

• stratum corneum

• stratum basale

• stratum spinosum

Identify the correct statement regarding skeletal muscle.

• Upon depolarization, the sarcoplasmic reticulum releases potassium into the surrounding muscle tissue.
• Sarcolemma are invaginations of the plasma membrane surrounding muscle cells.
• Sarcolemma surrounds smooth and skeletal muscle.
• The sarcoplasmic reticulum stores calcium, which is necessary for muscular contraction.

To which epidermal layer does the indicated cell belong?

• stratum corneum

• stratum spinosum

• stratum granulosum

• stratum basale

Which of the following regions contains only thick filaments?

• A

• B

• C

• D

Identify the structure indicated by the arrow.

• epimysium

• loose connective tissue

• endomysium

• perimysium