Exercise 7: Muscular System Anatomy Flashcards

1
Q

The human body has about

A

700 muscles

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2
Q

Muscles are names based on several criteria

A
Shape
Size
Direction of fibers
Origin and insertion
Number of heads
Action
Location 
Any combination of these
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3
Q

Include muscles of facial expression, extrinsic eye ball muscles, muscles of mastication
And those that move the head and shoulder

A

Muscles of the head and neck

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4
Q

Enable humans to express a variety if emotions

A

Muscles of facial expression

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5
Q

Originate from the bones of the skull and insert into the skin

A

Muscles of facial expression

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6
Q

Are moved by skeletal muscles referred to as extrinsic eyeball muscles

A

Eyeballs

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7
Q

Originate from the orbit and insert into the outer surface of the sclera

A

Eyeballs

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8
Q

Among the most precisely controlled muscles and the fastest to contract

A

Extrinsic eyeball muscle

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9
Q

Muscles of the anterior thorax which move the ribs, head, and arms

A

Muscles of the trunk

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10
Q

Move the vertebral column and form the abdominal girdle

A

Abdominal muscles

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11
Q

Include those that move the arm,elbow, wrist, and hand

A

Muscle of the upper extremities

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12
Q

Move the hip, knee and foot joints

A

Hip and lower extremities muscles

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13
Q

Collectively referred to as the precocious diaphragm which extends from the pubis to the coccyx

A

Two muscles of the Pelvic floor

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14
Q

In males, the pelvic diaphragm is pierced by the _______ and ______

A

Anal opening

Urethra

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15
Q

In females, the pelvic diaphragm is pierced by

A

Anal opening
Urethra
Vagina

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16
Q

Constitutes all voluntary skeletal muscles

A

Muscular system