The perineum is below the pelvic diaphragm and between the legs. It is a diamond-shaped area that includes the anus and, in females, the vagina. Just how much do you know about the perineum anatomy and bones? Take up the quiz below and get to learn more. All the best and keep studying.
The one on the left is male and the one on the right is female.
The one on the right is male and the one on the left is female.
The one on the left is from a younger person than the one on the right.
The one on the right is from a younger person than the one on the left.
The one on the right shows arthritic degeneration at the sacroiliac joint.
The pelvic girdle is composed of the right and left hip bones and the sacrum.
In infants and children the hip bone is composed of three separate bones—the ilium, ischium, and pubis.
The ala of the ilium helps to form the acetabulum.
The ischial spine separates the greater and lesser sciatic foramina.
The pelvic brim separates the greater (false) and lesser (true) pelves.
Passes through the greater sciatic notch.
Attaches to the ala of the sacrum.
Resists posterosuperior rotation of the sacrum (inferior aspect moving posteriorly and superiorly).
Passes through the obturator foramen.
Prevents posterior dislocation of the femoral head.
A fracture of the body of L5.
A vertebral canal tumor.
The true (conjugate) distance between the sacral promontory and the posterosuperior aspect of the pubic symphysis increases.
The hormone, relaxin, relaxes the pelvic ligaments.
The transverse diameter of the pelvis is increased.
The amount of pelvic rotation permitted around the sacrum is increased.
The coccyx is permitted to move more posteriorly.
It separates the pelvic cavity from the perineum.
It is pierced by the vagina in females.
It helps maintain urinary continence.
It helps maintain fecal continence
It is synonymous with the levator ani.
The sacrotuberous ligament.
The ischial spine.
The ischial tuberosity.
The iliac tubercle.
A posteriorly dislocated femoral head.
Is innervated by pelvic splanchnic nerves.
Actively contracts during coughing.
Causes increased urination when spastic.
Is part of the urogenital diaphragm.
Actively contracts during inspiration.
May be entered from the anterior vaginal fornix.
Is a peritoneal recess.
Is within the broad ligament.
Contains the ovaries.
Provides support to the bladder.
It is composed of subperitoneal endopelvic fascia
It provides support to the uterus.
It attaches to the lateral wall of the pelvic cavity.
It provides an attachment for the levator ani.
It may be used to hold sutures during pelvic surgery.
It is located on the posterolateral wall of the lesser pelvis.
It is related to the anterior surface of the piriformis muscle.
It is joined by the lumbosacral trunk
It may be compressed during parturition, resulting in lower limb pain.
Most of its branches exit the pelvis through the lesser sciatic foramen.
Convey vagal fibers to the pelvic viscera.
Convey pelvic splanchnic fibers to pelvic viscera.
Convey sympathetic fibers to pelvic viscera.
Receive white communicating rami from the sacral spinal nerves.
Comprise the pelvic part of the sympathetic trunk.
It derives from spinal segments S2-4.
It stimulates rectal contraction for defecation.
It stimulates bladder contraction for urination.
It stimulates ejaculation
The fibers are accompanied by visceral afferent fibers from pelvic viscera.
Characterizes pelvic pain referral areas based on the inferior limit of peritoneum.
Is at the level of the first sacral segment.
Refers to the vertebral level at which the pain associated with parturition is most severe.
Is only relevant during childbirth.
Relates to the referred pain felt in the midsagittal plane after hysterectomy.
It gives rise to the obturator artery.
It is a branch of the internal iliac artery.
It gives rise to superior vesical arteries.
It forms the medial umbilical ligament.
Postnatally, has both patent and occluded parts.
Passes superior to the ureter at the lateral fornix of the vagina.
Is a branch of the external iliac artery.
Supplies the bladder
Connects to the uterus at its junction with the uterine tubes.
Here's an interesting quiz for you.