100%RATED ANSWERS 2024/2025 LATEST
UPDATED/GET A+
Which structures are connected by the sacrospinous ligament? - Ischial spine to sacrum
Which ligament separates the greater and lesser sciatic foramina? - Sacrospinous ligament
The pudendal nerve provides motor innervation to which of the following structures? - External
anal sphincter and external urethral sphincter
What is the sensory innervation territory of the pudendal nerve? - Penis, scrotum, labia majora,
clitoris, and perineum
Which of the following describes the pathway of the pudendal nerve?
a) Contributions of S1-S3, exits pelvis through lesser sciatic foramen, wraps around
sacrotuberous ligament, enters pelvis through obturator foramen
b) Contributions of S2-S4, exits pelvis through greater sciatic foramen, wraps around
sacrospinous ligament, enters pelvis through lesser sciatic foramen
c) Contributions of L2-L4, exits pelvis through greater sciatic foramen, enters pelvis through
lesser sciatic foramen, and runs along obturator internus
d) Contributions of S2-S4, exits pelvis through lesser sciatic foramen, runs along sacrospinous
ligament, and enters pelvis through greater sciatic foramen - Contributions of S2-S4, exits pelvis
through greater sciatic foramen, wraps around sacrospinous ligament, enters pelvis through
lesser sciatic foramen
True/False
The sacrotuberous ligament connects the ischial spine to the sacrum. - False
True/False
The pudendal nerve runs along the medial surface of the obturator internus muscle. - True
True/False
The sacrospinous ligament and sacrotuberous ligament are both involved in defining the sciatic
foramina. - True
Describe the role of the sacrospinous ligament in the anatomy of the pelvis. - The sacrospinous
ligament connects the ischial spine to the sacrum and separates the greater and lesser sciatic
foramina.
,Explain the motor and sensory functions of the pudendal nerve - The pudendal nerve provides
motor innervation to the external anal sphincter and the external urethral sphincter. It provides
sensory innervation to the perineum, penis, scrotum, labia majora, and clitoris.
Which artery provides the main blood supply to the pelvis? - Internal iliac artery
Which branch of the internal iliac artery exits the pelvis through the greater sciatic foramen
below the piriformis? - Inferior gluteal artery
Which artery supplies the body of the uterus and branches to the ovary? - Uterine artery
Which artery anastomoses with the ovarian branch of the uterine artery? - Ovarian artery
Which branch of the internal iliac artery exits the pelvis through the greater sciatic foramen
above the piriformis? - Superior gluteal artery
The anterior division of the internal iliac artery primarily supplies blood to pelvic organs,
including the bladder, rectum, uterus, and perineum. (True/False) - True
The ovarian artery branches off the internal iliac artery
(True/False) - False
The uterus can be removed while leaving the tubes and ovaries intact because they have separate
blood supplies (True/False) - True
The superior gluteal artery is a branch of the posterior division of the internal iliac artery.
(True/False) - True
What pelvic organs are supplied by the anterior division of the internal iliac artery? - The
bladder, rectum, uterus, and perineum.
Explain the relationship between the ovarian artery and the uterine artery - The ovarian artery
branches off the abdominal aorta and anastomoses with the ovarian branch of the uterine artery
to provide blood supply to the ovary.
Describe the pathway of the superior gluteal artery. - The superior gluteal artery is a branch of
the posterior division of the internal iliac artery and exits the pelvis through the greater sciatic
foramen above the piriformis muscle.
Where do the gonadal arteries arise from? - Abdominal aorta between SMA and IMA
Which structure does the testicular artery pass through to reach the testicles? - Spermatic cord
and inguinal canal
Which vein do the gonadal veins drain into? - Left Renal vein or inferior vena cava (IVC)
, Which nerve innervates the external urethral sphincter? - Pudendal nerve
What is the normal site of fertilization? - Ampulla of the uterine tube
What happens if an embryo does not move to the uterine cavity for implantation? - Ectopic
pregnancy in the uterine tube
The gonadal arteries are part of a "closed system" connecting directly to the ovaries or testicles.
(True/False) - False
(It is an open system)
Ovulation occurs into the peritoneal cavity, and the ovum is taken up by the fimbria of the
uterine tube. (True/False) - True
The thickness of the endometrium changes throughout the monthly menstrual cycle. (True/False)
- True
Scarring of the uterine tube, often due to infection, increases the risk of ectopic pregnancy
(True/False) - True
Describe the pathway of the testicular artery - The testicular artery arises from the abdominal
aorta between the SMA and IMA, passes through the inguinal canal, and enters the spermatic
cord to supply blood to the testicles
Where does fertilization typically occur, and what happens if the embryo is not propelled onward
to the uterine cavity? - Fertilization typically occurs in the ampulla of the uterine tube. If the
embryo is not propelled onward to the uterine cavity, it can result in an ectopic pregnancy
What is the role of the pudendal nerve in the pelvis? - The pudendal nerve innervates the external
urethral sphincter, external anal sphincter, and provides sensation to the perineum
Explain why there is no "closed system" connection between the ovary and the uterine tube. -
During ovulation, the egg is released into the peritoneal cavity and then taken up by the fimbria
of the uterine tube. There is no direct physical connection between the ovary and the uterine
tube.
What percentage of pregnancies are ectopic pregnancies? - 1-2%
What percentage of pregnancy-related mortalities are due to ectopic pregnancies? - 10%
What is the typical cause of mortality in ectopic pregnancies? - Hemorrhage
Which structures empty into the prostatic urethra? - Seminal vesicle and vas deferens
What is the function of the epididymis? - Stores and transports sperm cells while they mature