Instruction: Please write your name and exam version on your Scantron. Please fi

Question

Instruction: Please write your name and exam version on your Scantron. Please fill out your answers on the Scantron clearly in pencil. Importantly, he sure to read each question and all the choices very carefully before answering it.Good luck! Which of the following is not a function of muscle? (a) Allows one to stand upright (b) Vasoconstriction dilation (c) Peristalsis (d) Thermoregulation (e) All of the above are functions of muscle Which of the following would be true of an insertion tendon? (a) Connects muscles to bone (b) Moves as the muscles contracts, pulling on the bone (c) Remains stationary and anchors the muscles onto the bone (d) Both A and B (c) Both A and C A motor unit is made up of (a) All the muscle fibers within a given muscle (b) All the muscle libers within a fascicle (c) All the neurons going into an individual section of the body (d) A motor neuron and all the muscle fibers it innervates (c) A muscle fiber and all the motor neurons contacting it Which of the following is not true of EMC? (a) Stands for electromyography (b) Technique that measures the electrical activity within muscles (c) Can be used to detect and diagnose neuromuscular disorders such as carpal tunnel syndrome (d) Visually displays muscle activity In the form of a wave (e) All of the above are true Which of the following is not true of skeletal muscle? (a) Appears striated under the microscope (b) Stretchy and classic (c) Responsible for voluntary movements (d) Attach to bones via ligaments (e) All of the above are true What action would be caused by skeletal muscle? (a) Heart beat (b) Dilation of pupil (c) Moving your eyes (d) Constriction of blood vessels (e) All of these Skeletal muscle does everything but (a) Support the skeleton (b) Link bones across a connecting joint (c) Contract in response to nerve stimulation (d) Form the bulk of the wall of the heart (e) Skeletal muscle does all of these

Explanation / Answer

1.The correct answer is: e.All of the above are functions of muscle.

Reason: All above options are functions of muscles.

2.The correct answer is:d.Both A and B

Reason:The above option is true as insertion tendon connects muscle to bone and moves to origin of muscle when muscle contracts.

3.The correct answer is:d.A motor neuron and all the muscle fibres it innervates.

Reason: The above option best describes a motor unit.

4.The correct answer is :e.All of the above are true.

Reason: All above options are related to EMG.

5.The correct answer is:d.Attach to bones via ligaments.

Reason: Skeletal muscles attach to bone via tendons.

6.The correct answer is:c.Moving your eyes.

Reason:Skeletal muscles of eyes such as lateral rectus,medial rectus,inferior rectus and superior oblique function in eye movement.

7.The correct answer is:d.Form the bulk of the wall of the heart.

Reason: Wall of heart is made up of cardiac muscles.

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