Question 1

Which connective tissue component surrounds each individual muscle fiber in skeletal muscle?

Accepted Answer

Endomysium

Question 2

What is the primary function of the sarcolemma in a muscle fiber?

Accepted Answer

Acts as the plasma membrane of the muscle cell

Question 3

Which of the following best describes the role of myoglobin in muscle fibers?

Accepted Answer

It binds oxygen for aerobic respiration

Question 4

During muscle contraction, which protein forms the thick filaments within the sarcomere?

Accepted Answer

Myosin

Question 5

What is the function of the transverse (T) tubules in skeletal muscle fibers?

Accepted Answer

They carry action potentials deep into the cell

Question 6

Which of the following is TRUE regarding the sarcoplasmic reticulum in skeletal muscle?

Accepted Answer

It forms a network around myofibrils and stores calcium

Question 7

Which structure is formed by the combination of a pair of terminal cisternae and a T tubule?

Accepted Answer

Triad

Question 8

Which of the following is NOT a universal characteristic of muscle tissue?

Accepted Answer

Secretion

Question 9

What is the main difference between a tendon and an aponeurosis?

Accepted Answer

A tendon is ropelike, while an aponeurosis is sheetlike

Question 10

Which of the following correctly matches the connective tissue layer with the structure it surrounds?

Accepted Answer

Endomysium surrounds each muscle fiber

Question 11

Which term refers to the plasma membrane of a muscle cell?

Accepted Answer

Sarcolemma

Question 12

Which of the following is a function of the elastic filament titin/connectin in the sarcomere?

Accepted Answer

It anchors thick filaments to the Z disc and helps muscle recoil after stretching

Question 13

Which muscle tissue type is under voluntary control?

Accepted Answer

Skeletal muscle

Question 14

Which of the following is the correct order of muscle tissue organization from smallest to largest?

Accepted Answer

Myofilament, myofibril, muscle fiber, fascicle, muscle

Question 15

Which of the following statements about skeletal muscle fibers is CORRECT?

Accepted Answer

They contain multiple flattened nuclei

Question 16

Which of the following is a function of the perimysium?

Accepted Answer

Surrounds each fascicle

Question 17

Which of the following is TRUE regarding muscle attachments?

Accepted Answer

Indirect attachment extends beyond muscle via tendon or aponeurosis

Question 18

Which of the following is NOT a type of muscle tissue?

Accepted Answer

Connective muscle

Question 19

Which of the following best describes the function of the sarcoplasm in muscle fibers?

Accepted Answer

It contains myofibrils, stored glycogen, and myoglobin

Question 20

Which of the following is a correct statement about muscle fiber microanatomy?

Accepted Answer

Myofibrils are divided into sarcomeres

Muscle Tissue: Structure and Function (Anatomy & Physiology, Chapter 9)

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