Muscles of the Pelvis: Interactive Learning Quizzes for Medical Students

Question 1

Which muscle is primarily responsible for lifting the pelvic floor?

Accepted Answer

Levator ani

Answer

Coccygeus

Answer

Obturator internus

Answer

Gluteus maximus

Question 2

Which of the following muscles is responsible for defecation and parturition?

Accepted Answer

Levator ani

Answer

Coccygeus

Answer

Piiformis

Answer

Obturator internus

Question 3

Which of the following is not a role attributed to pelvic floor muscles?

Accepted Answer

Regulating arterial blood flow to the pelvic region

Answer

Supporting pelvic organs

Answer

Maintaining urinary and fecal continence

Answer

Assisting in childbirth

Question 4

Which muscle is responsible for abducting the thigh and is innervated by the obturator nerve?

Accepted Answer

Obturator internus

Answer

Gluteus medius

Answer

Iliopsoas

Answer

Tensor fasciae latae

Question 5

What nerve provides innervation to the levator ani muscle?

Accepted Answer

Pudendal nerve

Answer

Obturator nerve

Answer

Sciatic nerve

Answer

Femoral nerve

Question 6

Which of the following is NOT a primary function of the pelvic floor muscles?

Accepted Answer

Generate sexual arousal

Answer

Support the pelvic organs

Answer

Control urination and defecation

Answer

Facilitate childbirth

Question 7

Where is the obturator internus muscle located?

Accepted Answer

Obturator foramen

Answer

Greater sciatic foramen

Answer

Lesser sciatic foramen

Answer

Inguinal canal

Question 8

Which muscle inserts onto both the coccyx and ischial tuberosity?

Accepted Answer

Coccygeus

Answer

Gluteus maximus

Answer

Piriformis

Answer

Levator ani

Question 9

What is the primary action of the external anal sphincter muscle?

Accepted Answer

Constricts the anal canal

Answer

Relaxes the anal canal

Answer

Abducts the thigh

Answer

Adducts the thigh

Question 10

From where does the gracilis muscle originate?

Accepted Answer

Inferior pubic ramus

Answer

Ischial tuberosity

Answer

Iliac crest

Answer

Femur

Question 11

Which muscle is responsible for flexing the thigh at the hip joint?

Accepted Answer

Iliopsoas

Answer

Gluteus maximus

Answer

Hamstrings

Answer

Quadriceps

Question 12

Where do the adductor muscles insert?

Accepted Answer

Adductor tubercle of the femur

Answer

Ischial tuberosity

Answer

Pubic tubercle

Answer

Iliac crest

Question 13

Which of the following muscles is NOT part of the pelvic floor?

Accepted Answer

Piriformis

Answer

Levator ani

Answer

Obturator internus

Answer

Coccygeus

Question 14

Identify the muscle located posteriorly in the pelvis that assists in external rotation of the thigh.

Accepted Answer

Piriformis

Answer

Gluteus maximus

Answer

Obturator externus

Answer

Gemelli

Question 15

Which muscle is not involved in the formation of the perineum?

Accepted Answer

Gluteus maximus

Answer

Bulbocavernosus

Answer

Transversus perinei profundus

Answer

Ischiocavernosus

Question 16

What is the primary role of the iliacus muscle?

Accepted Answer

Flexion of the hip joint

Answer

Extension of the hip joint

Answer

Abduction of the hip joint

Answer

Adduction of the hip joint

Question 17

Which muscle forms the primary support for the pelvic viscera and assists in defecation?

Accepted Answer

Levator ani

Answer

Obturator internus

Answer

Piriformis

Answer

Iliopsoas

Question 18

Which of the following muscles is NOT a component of the pelvic floor?

Accepted Answer

Gluteus maximus

Answer

Pubococcygeus

Answer

Puborectalis

Answer

Iliococcygeus

Question 19

A patient presents with urinary incontinence. Which muscle's weakness is most likely the primary cause?

Accepted Answer

Levator ani

Answer

Piriformis

Answer

Iliopsoas

Answer

Obturator internus

Question 20

Which nerve is primarily responsible for innervating the muscles of the pelvic floor?

Accepted Answer

Pudendal nerve

Answer

Obturator nerve

Answer

Sciatic nerve

Answer

Femoral nerve

Question 21

Which muscle primarily performs lateral rotation of the femur and assists with abduction?

Accepted Answer

Piriformis

Answer

Iliopsoas

Answer

Obturator internus

Answer

Levator ani

Question 22

A patient experiences pain during hip flexion. Which muscle might be affected?

Accepted Answer

Iliopsoas

Answer

Piriformis

Answer

Obturator internus

Answer

Levator ani

Question 23

Which of the following muscles is NOT directly involved in controlling the movement of the hip joint?

Accepted Answer

Coccygeus

Answer

Piriformis

Answer

Iliopsoas

Answer

Gluteus maximus

Question 24

Which muscle group is responsible for both hip flexion and external rotation?

Accepted Answer

Iliopsoas

Answer

Levator ani

Answer

Piriformis

Answer

Obturator internus

Question 25

During childbirth, which muscle plays a crucial role in supporting the fetal head and guiding its descent through the birth canal?

Accepted Answer

Levator ani

Answer

Piriformis

Answer

Obturator internus

Answer

Iliopsoas