Morph 3 Lecture Exam 3

Where is the apex of the ischioanal fossa located?

where levator ani m originates from obturator internus fascia

Where are the ischioanal fossae located?

between skin of anal region and pelvic diaphragm

What is the function of the ischioanal fossae

Permits expansion of anal canal during passage of feces

How do the 2 ischioanal fossae communicate with each other?

via a postanal space

Where is the pudendal canal located?

Lateral wall of ischioanal fossa

What artery supplies the external anal sphincter and perianal skin? a) Deep artery of penis b) Posterior scrotal a c) Perineal a d) Inferior rectal a

d) Inferior rectal a

What nerve supplies the urogenital triangle? a) Deep perineal n b) Posterior scrotal n c) Perineal n d) Inferior rectal n

c) Perineal n

Which branch of the internal pudendal artery supplies the erectile tissue in males? a. Inferior rectal artery b. Perineal artery c. Deep artery of penis d. Dorsal artery of clitoris

c. Deep artery of penis

Which branch of the pudendal nerve supplies the external anal sphincter and perianal skin? a. Inferior rectal nerve b. Perineal nerve c. Superficial perineal nerve d. Deep perineal nerve

a. Inferior rectal nerve

Which branch of the internal pudendal artery supplies structures in the superficial pouch? a. Inferior rectal artery b. Perineal artery c. Deep artery of penis d. Dorsal artery of clitoris

b. Perineal artery

What nerve supplies the muscles of deep/superficial perineal pouches a) Deep perineal n b) Posterior scrotal n c) Perineal n d) Inferior rectal

a) Deep perineal n

What nerve supplies the inferior part of vagina and its vestibule a) Deep perineal n b) Posterior scrotal n c) Perineal n d) Inferior rectal n

a) Deep perineal n

What nerve is the primary sensory nerve of glans a) Deep perineal n b) Dorsal nerve of penis/clitoris c) Perineal n d) Inferior rectal n

b) Dorsal nerve of penis/clitoris

What is the terminal part of the large intestine?

anal canal

What is the normal position of the anal canal?

Normally constricted closed unless feces are passing through

Which anal sphincter is voluntarily controlled?

external anal sphincter

Which anal sphincter is involuntarily controlled?

internal anal sphincter

Which artery forms anastomoses with the superior and inferior rectal artery? a. Middle rectal artery b. Perineal artery c. Deep artery of penis d. Dorsal artery of penis

a. Middle rectal artery

Which anal sphincter is normally contracted (sympathetic) to prevent leakage of feces or flatus?

Internal anal sphincter

What are the longitudinal ridges of mucosa in superior half of anal canal called?

Anal columns

What part of the anal canal produces mucous to facilitate passage of feces?

Anal sinuses

What is the junction of the hindgut (endoderm) with proctodeum (ectoderm) called?

pectinate line

Which artery supplies the anal canal above the pectinate line?

superior rectal a

Which artery supplies the anal canal below the pectinate line?

inferior rectal a

What is the lymphatic drainage superior to the pectinate line?

internal iliac lymph nodes

What is the lymphatic drainage inferior to the pectinate line?

superficial inguinal lymph nodes

The internal pudendal artery and vein, pudendal nerve, and nerve to obturator internus muscle are all contained within which of the following structures? a. Anal Canal b. Pudendal canal c. Obturator foramen d. Greater Sciatic foramen

b. Pudendal canal

What structure conveys urine from the kidney to the urinary bladder?

ureter

In females what artery supplies the pelvic part of the ureter? a. Uterine artery b. Inferior vesical artery c. External iliac artery d. Renal artery

a. Uterine artery

In males what artery supplies the pelvic part of the ureter? a. Uterine artery b. Inferior vesical artery c. External iliac artery d. Renal artery

b. Inferior vesical artery

In adults, where is the empty urinary bladder located?

lesser pelvis

What muscle thickens to form the involuntary internal urethral sphincter? a. Dartos muscle b. Cremaster muscle c. Detrusor muscle d. Iliacus muscle

c. Detrusor muscle

What artery supplies the anterosuperior region of the urinary bladder? a. Scrotal artery b. Inferior vesical artery c. Vaginal artery d. Superior vesical artery

d. Superior vesical artery

Which portion of the male urethra is the widest and most dilatable section? a. Intramural urethra b. Prostatic urethra c. Membranous urethra d. Spongy urethra

b. Prostatic urethra

Which portion of the male urethra passes through the bulb and corpus spongiosum of penis? a. Intramural urethra b. Prostatic urethra c. Membranous urethra d. Spongy urethra

d. Spongy urethra

What nerve provides autonomic innervation to the female urethra?

pudendal nerve

What is provided by the seminal vesicle that is used as an energy source for spermatozoa? a. Glucose b. Fructose c. Sucrose d. Triglycerides

b. Fructose

The union of ductus deferens with the duct from seminal vesicle becomes what structure? a. Ejaculatory duct b. Prostate c. Bulborethral gland d. Epididymis

a. Ejaculatory duct

What is the largest accessory gland of the male reproductive system?

Prostate

Which lobe of the prostate is most prone to metastatic transformation? a. Anterior b. Lateral c. Middle d. Posterior

b. Lateral

Which lobe of the prostate is most prone to benign hypertrophy? a. Anterior b. Lateral c. Middle d. Posterior

c. Middle

Which artery supplies the superior vagina? a. Vaginal artery b. Uterine artery c. Internal pudendal artery d. Superior vesical artery

b. Uterine artery

Which artery supplies the middle vagina? a. Vaginal artery b. Uterine artery c. Internal pudendal artery d. Superior vesical artery

a. Vaginal artery

Which artery supplies the inferior vagina? a. Vaginal artery b. Uterine artery c. Internal pudendal artery d. Superior vesical artery

c. Internal pudendal artery

What glands produce a viscous secretion that enters spongy urethra during sexual arousal?

Bulbourethral glands

Which layer of the Uterus changes dramatically during each menstrual cycle? a. Perimetrium b. Myometrium c. Endometrium d. Uterometrium

c. Endometrium

Which ligament spans from the uterus to the ovary? a. Round ligament b. Ovarian ligament c. Cardinal ligament d. Uterosacral ligament

b. Ovarian ligament

What area of the uterine tube is the usual site for fertilization? a. Infundibulum b. Ampulla c. Isthmus d. Vagina

b. Ampulla

Which artery supplies the proximal part of the rectum? a. Middle rectal artery b. Superior rectal artery c. Inferior rectal artery d. Lateral rectal artery

b. Superior rectal artery

The left ovarian vein drains to what vessel? a. Inferior Vena Cava b. Right renal vein c. Left renal vein d. Superior Vena Cava

c. Left renal vein

The right ovarian vein drains to what vessel? a. Inferior Vena Cava b. Right renal vein c. Left renal vein d. Superior Vena Cava

a. Inferior Vena Cava

Which artery supplies the anorectal junction and anal canal? a. Middle rectal artery b. Superior rectal artery c. Inferior rectal artery d. Lateral rectal artery

c. Inferior rectal artery

What is the name for enlarged veins around the inferior rectum and anal canal?

hemorrhoids

What nerve controls defecation? a. Least splanchnic nerve b. Lumbar splanchnic nerve c. Greater splanchnic nerve d. Pelvic splanchnic nerve

d. Pelvic splanchnic nerve

Which of the following is the site for spermatozoa production? a. Seminiferous tubule b. Tunica vaginalis testis c. Tunica albuginea d. Mediastinum testis

a. Seminiferous tubule

What is the function of myoid cells?

create peristaltic waves in the seminiferous tubule required to move immature sperm out of the seminiferous tubule

What do Interstitial (Leydig) cells secrete?

testosterone

What type of tissue is found lining the ductus epididymis? a. Pseudostratified columnar epithelium b. Transitional epithelium c. Stratified columnar epithelium d. Stratified squamous epithelium

a. Pseudostratified columnar epithelium

What do the testes produce?

spermatozoa and androgens

How many days does spermatogenesis take to complete?

74 days

The two dorsal columns surrounded by a dense tunica albuginea is called? a. Rete testis b. Corpus spongiosum c. Corpora cavernosa d. Tubuli recti

c. Corpora cavernosa

The single ventral column that surrounds the penile urethra is called? a. Rete testis b. Corpus spongiosum c. Corpora cavernosa d. Tubuli recti

b. Corpus spongiosum

Which part of the urethra is initially lined by transitional epithelium? a. Scrotal urethra b. Membranous urethra c. Penile urethra d. Prostatic urethra

d. Prostatic urethra

What is the site of implantation and fetal development in females?

uterus

Which of the following hormones causes the follicular cells to undergo both hypertrophy and hyperplasia? a. Follicle stimulating hormone b. Leutinizing hormone c. Estrogen d. Progesterone

a. Follicle stimulating hormone

Which female sex hormone promotes the growth and development of the female sex organs?

estrogen

Which layer of the endometrium must be regenerated during each menstrual cycle? a. Stratum functionale b. Stratum basale c. Myometrium d. Perimetrium

Stratum functionale

Ovulation typically occurs around day 14 in response to what hormone? a. Follicle stimulating hormone b. Leutinizing hormone c. Estrogen d. Progesterone

b. Leutinizing hormone

Which structure is the female equivalent of the penis? a. Clitoris b. Cervica c. Vagina d. Uterus

a. Clitoris

What is the superior rim of the iliac ala called?

Iliac crest

How many vertebra fuse to form the sacrum?

5

How many vertebra fuse to form the coccyx?

4

What is the fibrocartilage connection between the pubic bones called?

Pubic symphysis

What is the name of the joint where the hip bones articulate with the sacrum?

SI joint

What is the name of the ligament that spans from the lateral sacrum to the ischial tuberosity?

Sacrotuberous ligament

The sacroiliac joint is a ____________ posteriorly and a ___________ anteriorly a) synovial joint, syndesmosis b) syndesmosis, synovial joint

b) syndesmosis, synovial joint

What is the name of the concavity between ischial spine and ischial tuberosity

Lesser sciatic notch

What is the name of the concavity superior to ischial spine (adjacent to ilium)

Greater sciatic notch

What 3 bones fuse to form the hip bone

ilium, ischium and pubis

What is the inferior pelvic aperture called?

Pelvic outlet

What ligament is primarily responsible for weight transfer at the SI joint?

Interosseus sacroiliac l

What is the action of the obturator internus muscle? a. Laterally rotate thigh, holds head of femur in acetabulum b. Laterally rotate and abduct the thigh, holds head of femur in the acetabulum c. Raise pelvic floor and compress abdominopelvic contents d. Medially rotate thigh and flex the trunk

a. Laterally rotate thigh, holds head of femur in acetabulum

What nerve is obturator internus innervated by?

Nerve to obturator internus (L5-S2)

What is the action of the piriformis muscle? a. Laterally rotate thigh, holds head of femur in acetabulum b. Laterally rotate and abduct the thigh, holds head of femur in the acetabulum c. Raise pelvic floor and compress abdominopelvic contents d. Medially rotate thigh and flex the trunk

b) laterally rotates and abducts thigh, holds femur head in acetabulum

What nerve innervates piriformis?

S1-S2 ventral rami

Which muscle raises the pelvic floor and compresses abdominopelvic contents

levator ani muscle

What muscle resists increases in intra-abdominal pressure

levator ani muscle

Which of the following surrounds the spongy urethra? a. Corpora cavernosa b. Corpus spongiosum c. Bulb of penis d. Crura of penis

b. Corpus spongiosum

Which of the following arteries supplies the proximal penile skin? a. External pudendal artery b. Deep artery of penis c. Dorsal artery of penis d. Artery of bulb

a. External pudendal artery

Which artery is responsible for erection of the penis? a. External pudendal artery b. Deep artery of penis c. Dorsal artery of penis d. Artery of bulb

b. Deep artery of penis

Which of the following arteries is responsible for erection of penis a. External pudendal artery b. Deep artery of penis c. Dorsal artery of penis d. Artery of bulb

b. Deep artery of penis

Which nerve provides sensory innervation of skin and glans penis? a. Ganglion impar b. Cavernous nerve c. Dorsal nerve of penis d. Femoral nerve

c. Dorsal nerve of penis

Which nerve is responsible for erection a. Ganglion impar b. Cavernous nerve c. Dorsal nerve of penis d. Femoral nerve

b. Cavernous nerve

Which of the following veins provides venous drainage of the vulva? a. Inferior vena cava b. External pudendal vein c. Femoral vein d. Internal pudendal vein

d. Internal pudendal vein

What artery supplies the inferior surface of urinary bladder, seminal vesicles and prostate

Inferior vesical a

What artery supplies anterior/posterior surfaces of vagina, and inferior surface of urinary bladder and pelvic urethra

Vaginal a

What artery supplies uterus, cervix and superior parts of vagina

Uterine a

What is the parasympathetic innervation to the vuvla provided by?

cavernous n

Which of the following arteries is the main artery of the pelvis? a. External iliac artery b. Internal iliac artery c. Common iliac artery d. Femoral artery

b. Internal iliac artery

Which artery supplies the muscles of the medial thigh? a. Obturator artery b. Inferior gluteal artery c. Middle rectal artery d. Vaginal artery

a. Obturator artery