Muscles of Pelvic Wall and Floor

Question 1

What are the primary muscles of the pelvic walls

Answer 1

Obturator Internus
Piriformis

These muscles support the pelvic organs and contribute to pelvic diaphragm formation.

Question 2

What is the role of the Urogenital Hiatus?

Answer 2

Midline opening for Urethra (and Vagina)

This allows the passage of urine and, in females, also provides an opening for the vagina.

Question 3

True or False: The Piriformis muscle exits the pelvic cavity via the Lesser Sciatic Foramen.

Answer 3

False

The Piriformis exits via the Greater Sciatic Foramen.

Question 4

Fill in the blank: The _____ muscle exits the pelvic cavity via the Lesser Sciatic Foramen.

Answer 4

Obturator Internus

Question 5

Which muscle has its insertion on the Greater Trochanter?

Answer 5

Piriformis

This muscle is crucial for hip movement and stability.

Question 6

Name the anatomical feature that marks the point of union between the ilium and pubis.

Answer 6

Iliopubic Eminence

This structure is important for pelvic stability.

Question 7

What are the primary muscles of the pelvic floor?

Answer 7

Puborectalis
Pubococcygeus
Iliococcygeus
Ischiococcygeus (Coccygeus)

Question 8

What are the major components of the female pelvic cavity?

Answer 8

• Bladder
• Uterus
• Rectum
• Ureter
• Urethra
• Vagina

Question 9

What are the major components of the male pelvic cavity?

Answer 9

• Bladder
• Prostate
• Urethra
• Ureter
• Rectum

Question 10

Identify the highlighted muscle

Answer 10

Pubococcygeous

Question 11

Identify the highlighted muscle

Answer 11

Puborectalis

Question 12

Identify the highlighted muscle

Answer 12

Iliococcygeous

Question 13

Identify the highlighted muscle

Answer 13

Obturator internus

Question 14

Identify the highlighted muscle

Answer 14

Ischiococcygeous

Question 15

Identify the highlighted muscle

Answer 15

Piriformis