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Exam 9: Muscles and Muscle Tissue

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Question 61

True/False

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Muscle cells store more creatine phosphate than ATP resulting in the muscle having a reserve source of energy.

A) True
B) False

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Question 62

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Which of the following describes the cells of unitary smooth muscle?

A) They depend upon recruitment using the autonomic nervous system.
B) They are used for vision and hair raising.
C) They exhibit spontaneous action potentials.
D) They consist of muscle fibers that are structurally independent of each other.

E) None of the above
F) B) and D)

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Question 63

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The effect of a neurotransmitter on the muscle cell membrane is to modify its ion permeability properties temporarily.

Figure 9.1 Using Figure 9.1, match the following: -Connective tissue surrounding muscle fiber bundles

Match the following: A) I band B) Myosin C) Z discs D) A band -Both actin and myosin are found in the ________.

Match the following: A) Tetanus B) Muscle tone C) Maximal stimulus D) Wave summation E) Multiple motor unit summation -How a smooth increase in muscle force is produced.

Figure 9.2 Using Figure 9.2, match the following: -Z disc.

Eccentric contractions are more forceful than concentric contractions.

A motor neuron and all the muscle cells that it stimulates are referred to as a motor end plate.

Immediately following the arrival of the stimulus at a skeletal muscle cell there is a short period called the ________ period during which the neurotransmitter is released by exocytosis, diffuses across the synaptic cleft, and binds to its receptors.

The thin filaments (actin) contain a polypeptide subunit G actin that bears active sites for myosin attachment.

Figure 9.2 Using Figure 9.2, match the following: -I band.

What structure in skeletal muscle cells functions in calcium storage?

After much delayed removal of an elbow cast, Lauren noticed her arm was immovable. What happened to her arm?

Match the following: A) Tetanus B) Muscle tone C) Maximal stimulus D) Wave summation E) Multiple motor unit summation -Determined by alternating motor units of a muscle organ even when the muscle is at rest.

Smooth muscle is characterized by all of the following except ________.

Match the sport to the energy system primarily used to perform the activity: A) Aerobic pathway B) Direct phosphorylation C) Anaerobic pathway -25 meter swim

When a geriatric patient is admitted to the postsurgical unit, an important nursing measure is to prevent the loss of muscle mass. What is the term used for loss of muscle mass and how can the patient prevent it?

Which of the following surrounds the individual muscle cell?

Match the following: A) Acetylcholine B) Acetylcholinesterase C) Creatine phosphate D) Sodium ions E) Calcium ions -Destroys ACh.