Exam 3 Questions And Answers
Which structure in the figure corresponds to a single skeletal muscle cell? C.
The connective tissue that covers structure A is continuous with which of the following?
tendon
Which of the following corresponds to a single fascicle? B.
Which of the structures is surrounded by the connective tissue sheath known as the perimysium?
B.
In the muscles of the limbs, the origin is usually the immobile muscle attachment. True
The smallest contractile unit within skeletal muscle would correspond to the distance between
which two points in the figure? 1 and 7
Which of the following regions best identifies where myosin would have maximum cross-bridge
access to actin? the region between 2 and 3
, Exam 3 Questions And Answers
The region between which two points corresponds to the entire A (dark) band? 2 and 6
What is the function of the filaments found in ranges 1-2 and 6-7 but no other ranges?
protection from overstretching
Which muscle cell structure stores calcium ions that are used to trigger the contraction?
the sarcoplasmic reticulum
The contractile, or functional, unit of a muscle fiber is __________. the sarcomere
Based on what you know of the relationship between the thick and the thin filaments, what
would happen if a disorder existed that caused a person to produce no tropomyosin? The
muscle tissues would never be able to relax.
The __________ shorten(s) during muscle contraction sarcomere
Which structure in the figure corresponds to a single skeletal muscle cell? C.
The connective tissue that covers structure A is continuous with which of the following?
tendon
Which of the following corresponds to a single fascicle? B.
Which of the structures is surrounded by the connective tissue sheath known as the perimysium?
B.
In the muscles of the limbs, the origin is usually the immobile muscle attachment. True
The smallest contractile unit within skeletal muscle would correspond to the distance between
which two points in the figure? 1 and 7
Which of the following regions best identifies where myosin would have maximum cross-bridge
access to actin? the region between 2 and 3
, Exam 3 Questions And Answers
The region between which two points corresponds to the entire A (dark) band? 2 and 6
What is the function of the filaments found in ranges 1-2 and 6-7 but no other ranges?
protection from overstretching
Which muscle cell structure stores calcium ions that are used to trigger the contraction?
the sarcoplasmic reticulum
The contractile, or functional, unit of a muscle fiber is __________. the sarcomere
Based on what you know of the relationship between the thick and the thin filaments, what
would happen if a disorder existed that caused a person to produce no tropomyosin? The
muscle tissues would never be able to relax.
The __________ shorten(s) during muscle contraction sarcomere
