ANAT 1009 TEST 2
Authored by Ramsay Dunstan
Science
Professional Development
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which structure anchors the thin filaments within a sarcomere?
A. Z line
B. M line
C. H zone
D. A band
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which of the following are required for cross-bridge cycling?
ATP binding
Calcium binding to troponin
Actin–myosin interaction
Troponin degradation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following accurately describes the sarcomere during contraction?
A. A band shortens
B. I band shortens
C. H zone lengthens
D. Z discs separate
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which structure carries the action potential deep into the muscle fiber?
T-tubules
Sarcolemma
Sarcoplasmic reticulum
Mitochondria
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following muscles is primarily involved in elbow flexion?
Triceps brachii
Deltoid
Biceps brachii
Supraspinatus
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes isometric contraction?
Muscle length shortens
Muscle length stays the same but tension develops
Tension decreases
Sarcomeres lengthen
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a primary muscle for plantar flexion?
Tibialis anterior
Soleus
Sartorius
Hamstrings
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