Exam 8: Muscle Physiology

Myoglobin

Select the correct statement regarding smooth muscle.

Indicate which of the characteristics in question apply to each of the muscle fiber types by using the following answer code (more than one answer may apply): -Is found predominantly in muscles adapted for short- duration, high-intensity activities.

Match muscle term with correct characteristic. -glycogen

The accompanying figure relates to pathways involved in stretch reflex. Match the steps highlighted in the figure (steps 1-4) with the statements using the letter key below. -Co-activation of alpha and gamma motor neurons

Indicate which of the characteristics in question apply to each of the muscle fiber types by using the following answer code (more than one answer may apply): -Has numerous mitochondria.

Muscle tension

MATCHING Indicate which of the muscle proteins in skeletal muscle is associated with the item in question by writing the appropriate letters in the blanks using the answer code below: -Shape consists of two globular heads attached to a tail.

Select the correct statement about the summation of simple twitches.

This molecule allows crossbridge detachment:

Which of the following is not a determinant of whole muscle tension?

Compare and contrast isotonic versus isometric contractions.

The larger the motor units within a muscle, the more precisely controlled the gradations of contraction.

MATCHING: ART The following questions relate to accompanying figure of the three types of muscle tissue. Use the figure to help match the following characteristics with the correct muscle type. -Non-striated

Indicate which characteristic applies to which type of muscle. -Is used to accomplish movement.

Muscle tension does not develop in isometric contractions.

MATCHING Indicate which of the muscle proteins in skeletal muscle is associated with the item in question by writing the appropriate letters in the blanks using the answer code below: -Found in thick filament.

Indicate the characteristics of the muscle-tension receptors using the following answer code: -Unless compensatory measures are taken, this receptor becomes slack.

Indicate which of the characteristics in question apply to each of the muscle fiber types by using the following answer code (more than one answer may apply): -Contains considerable myoglobin.

MATCHING Indicate which of the muscle proteins in skeletal muscle is associated with the item in question by writing the appropriate letters in the blanks using the answer code below: -Found in the sarcomere.