Abdominal Muscles: Multiple Choice Quiz for Medical Students

Question 1

Identify the muscle that is NOT a component of the abdominal wall.

Accepted Answer

Levator ani

Answer

Rectus abdominis

Answer

Transversus abdominis

Answer

External oblique

Question 2

Which nerve provides innervation to the transversus abdominis?

Accepted Answer

Thoracoabdominal nerve

Answer

Iliohypogastric nerve

Answer

Ilioinguinal nerve

Answer

Genitofemoral nerve

Question 3

Select the action NOT performed by the abdominal muscles.

Accepted Answer

Extension of the spine

Answer

Flexion of the spine

Answer

Lateral flexion of the spine

Answer

Rotation of the spine

Question 4

Identify the muscle responsible for forming the pelvic cavity floor.

Accepted Answer

Levator ani

Answer

Pubococcygeus

Answer

Coccygeus

Answer

Iliococcygeus

Question 5

Which nerve innervates the pelvic floor muscles?

Accepted Answer

Pudendal nerve

Answer

Sacral nerve

Answer

Femoral nerve

Answer

Obturator nerve

Question 6

Identify the muscle responsible for abdominal content compression during exhalation.

Accepted Answer

Transversus abdominis

Answer

Rectus abdominis

Answer

External oblique

Answer

Internal oblique

Question 7

Which muscle is excluded from the formation of the inguinal canal?

Accepted Answer

Transversus abdominis

Answer

Internal oblique

Answer

External oblique

Answer

Cremaster

Question 8

Which of the following muscles is NOT a component of the abdominal wall?

Accepted Answer

Erector spinae

Answer

Rectus abdominis

Answer

Transverse abdominis

Answer

Internal oblique

Question 9

Which muscle is the primary flexor of the trunk?

Accepted Answer

Rectus abdominis

Answer

Obliquus externus abdominis

Answer

Transversus abdominis

Answer

Pyramidalis

Question 10

Which nerve innervates the levator ani muscle?

Accepted Answer

Pudendal nerve

Answer

Sciatic nerve

Answer

Femoral nerve

Answer

Obturator nerve

Question 11

What is a potential clinical consequence of a hernia in the abdominal wall?

Accepted Answer

Protrusion of organs through a weakened area

Answer

Muscle weakness

Answer

Nerve entrapment

Answer

Arterial occlusion

Question 12

Which nerve innervates the rectus abdominis muscle?

Accepted Answer

Lumbar plexus

Answer

Phrenic nerve

Answer

Intercostal nerves

Answer

Sacral plexus

Question 13

Which muscle forms the lateral boundary of the inguinal canal?

Accepted Answer

External oblique

Answer

Transversus abdominis

Answer

Internal oblique

Answer

Rectus abdominis

Question 14

Which of the following is NOT a function of the abdominal muscles?

Accepted Answer

Movement of the head

Answer

Support of the abdominal organs

Answer

Protection of the viscera

Answer

Control of respiration

Question 15

Which muscle is located most superficially in the abdominal wall?

Accepted Answer

External oblique

Answer

Rectus abdominis

Answer

Internal oblique

Answer

Transverse abdominis

Question 16

Which muscle attaches to the pubic bone and inserts into the costal cartilages?

Accepted Answer

Rectus abdominis

Answer

External oblique

Answer

Internal oblique

Answer

Transverse abdominis

Question 17

Which muscle group, when acting together, is responsible for lateral flexion of the trunk?

Accepted Answer

Oblique muscles (obliquus externus abdominis and obliquus internus abdominis)

Answer

Transversus abdominis

Answer

Rectus abdominis

Answer

Pelvic floor muscles

Question 18

Which muscle forms the anterior aspect of the abdominal wall and has a characteristic segmented appearance with tendinous intersections?

Accepted Answer

Rectus abdominis

Answer

Obliquus internus abdominis

Answer

Obliquus externus abdominis

Answer

Transversus abdominis

Question 19

Which layer of the abdominal wall contains the external oblique muscle?

Accepted Answer

External oblique aponeurosis

Answer

Internal oblique aponeurosis

Answer

Transversalis fascia

Answer

Rectus sheath

Question 20

Which muscle is responsible for increasing intra-abdominal pressure, as in the Valsalva maneuver, which is used to stabilize the body during various activities?

Accepted Answer

Transversus abdominis

Answer

Obliquus internus abdominis

Answer

Rectus abdominis

Answer

Obliquus externus abdominis

Question 21

Which muscle originates from the pelvic floor and inserts onto the pubic bone, forming part of the levator ani muscle group, which supports the pelvic organs?

Accepted Answer

Pubococcygeus

Answer

Piramidalis

Answer

Obturator internus

Answer

Iliococcygeus

Question 22

Which muscle is responsible for flexing the vertebral column and depressing the ribs?

Accepted Answer

Rectus abdominis

Answer

Transverse abdominis

Answer

Internal oblique

Answer

External oblique

Question 23

Which nerve innervates the transversus abdominis muscle?

Accepted Answer

T7-L1

Answer

S2-S4

Answer

L1-L3

Answer

C5-C6

Question 24

Which muscle forms the anterior wall of the inguinal canal?

Accepted Answer

External oblique

Answer

Rectus abdominis

Answer

Transversus abdominis

Answer

Internal oblique

Question 25

Which nerve innervates the rectus abdominis muscle?

Accepted Answer

T7-T12

Answer

C5-C6

Answer

L1-L3

Answer

S2-S4

Question 26

Which muscle is responsible for flexing the hip joint?

Accepted Answer

Iliopsoas

Answer

Adductor longus

Answer

Sartorius

Answer

Pectineus