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What muscle forms a circular "sling" around the anorectal junction?


A) Iliococcygeus
B) External anal sphincter
C) Coccygeus
D) Pubococcygeus
E) Puborectalis

F) B) and D)
G) B) and C)

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Muscles of the vertebral column are simple,having only one superior and inferior attachment.

A) True
B) False

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Which muscle does not move the mandible?


A) Temporalis
B) Masseter
C) Lateral pterygoid
D) Medial pterygoid
E) Genioglossus

F) A) and B)
G) A) and C)

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This muscle extends and rotates the vertebral column toward the opposite side of the body.Its inferior attachment is on the sacrum and transverse processes of each vertebra,and its superior attachment is the spinous processes of more superior vertebrae.


A) Multifidus
B) Interspinales
C) Intertransversarii
D) Rotators
E) Quadratus lumborum

F) A) and D)
G) B) and E)

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What is an aponeurosis?


A) A round tendonlike structure attaching muscle to bone
B) A fibrous,perpendicular insertion between successive sheets or blocks of muscle
C) A flat sheet of connective tissue used for muscle insertion
D) A thin layer of muscle used to attach two other muscles together
E) A narrow,vertical,fibrous strip used to attach muscle sheaths of the left and right rectus abdominis

F) A) and D)
G) A) and C)

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Which muscle forms the traditional "six-pack" of a well-toned abdominal wall?


A) Rectus abdominis
B) Transversus abdominis
C) Internal oblique
D) External oblique
E) Longissimus

F) A) and B)
G) A) and E)

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Which two muscles are known collectively as the urogenital diaphragm? A: Ischiocavernosus B: Deep transverse perineal C: Bulbospongiosus D: External urethral sphincter


A) a,c
B) b,d
C) a,d
D) b,c
E) c,d

F) D) and E)
G) B) and E)

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The most medial of the abdominal muscles are the _________ muscles.


A) rectus abdominis
B) transversus abdominis
C) internal oblique
D) external oblique
E) tendinous intersections

F) A) and E)
G) A) and B)

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Collectively,these muscles support and position the head,vertebral column,and thoracic cage.They also control movements associated with respiration and form part of the floor of the pelvic cavity.


A) Axial muscles
B) Appendicular muscles

C) A) and B)
D) undefined

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The muscle that causes the look of fear by tensing the skin of the neck is the


A) buccinator.
B) orbicularis oris.
C) zygomaticus major.
D) orbicularis oculi.
E) platysma.

F) A) and D)
G) A) and B)

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In the male,which muscle ejects urine or semen,compresses the base of the penis,and helps in formation of an erection?


A) Iliococcygeus
B) Superficial transverse perineal muscle
C) External urethral sphincter
D) Bulbospongiosus
E) Pubococcygeus

F) A) and B)
G) A) and C)

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Of the muscles listed,the only one not innervated by the pudendal nerve is the


A) external anal sphincter.
B) coccygeus.
C) iliococcygeus.
D) pubococcygeus.
E) puborectalis.

F) A) and B)
G) A) and E)

Correct Answer

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This muscle has its origin on the perineal body and it encircles the anal opening.


A) External anal sphincter
B) Coccygeus
C) Iliococcygeus
D) Pubococcygeus
E) Puborectalis

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

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These muscles extend from the pubis and ischium anteriorly to the sacrum and coccyx posteriorly.They control the evacuation of waste materials from the digestive and urinary systems.


A) Muscles of the abdominal wall
B) Muscles of the vertebral column
C) Muscles of the pelvic floor
D) Muscles of the pharynx
E) Muscles of the perineal floor

F) C) and E)
G) A) and D)

Correct Answer

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Which muscle is part of the urogenital diaphragm and constricts the urethra to voluntarily inhibit urination?


A) Ischiocavernosus
B) Superficial transverse perineal muscle
C) External urethral sphincter
D) Bulbospongiosus
E) Pubococcygeus

F) C) and D)
G) A) and B)

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The deepest of the abdominal muscles are the _________ muscles.


A) rectus abdominis
B) transversus abdominis
C) internal oblique
D) external oblique
E) tendinous intersections

F) A) and E)
G) B) and D)

Correct Answer

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Which of the abdominal muscles is innervated by spinal nerves T7-T12?


A) Rectus abdominis
B) Transversus abdominis
C) Internal oblique
D) External oblique
E) None of these choices is correct.

F) A) and E)
G) B) and C)

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Which depress(es) the ribs?


A) Internal intercostals
B) Serratus posterior inferior
C) Transversus thoracis
D) Two of the choices are correct.
E) All of the choices are correct.

F) C) and D)
G) B) and D)

Correct Answer

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Which muscles aid in the act of swallowing?


A) Muscles of the pharynx
B) Muscles of mastication
C) Muscles that move the tongue
D) Muscles of facial expression
E) Two of the choices are correct.

F) B) and E)
G) C) and E)

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Which of the abdominal muscles does not insert on the linea alba?


A) Rectus abdominis
B) Transversus abdominis
C) Internal oblique
D) External oblique
E) No exceptions; all choices insert on the linea alba.

F) C) and D)
G) A) and E)

Correct Answer

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