Anatomy of the Anterior Triangle
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Questions and Answers

Which nerve provides innervation and vascular support to the external female genitalia?

  • Pudendal nerve (correct)
  • Femoral nerve
  • Sciatic nerve
  • Obturator nerve

Which structure of the vulva acts as sensory tissue during sexual intercourse?

  • Hymen
  • Mons pubis
  • Labia minora
  • Clitoris (correct)

What is the function of the vulva in relation to micturition?

  • Directs the flow of urine (correct)
  • Filters urine
  • Stores urine
  • Produces urine

What is the purpose of the labia majora during pregnancy?

<p>To provide bulk and support to the vulva (D)</p> Signup and view all the answers

Which layer of the anterior abdominal wall continues inferiorly onto the perineum as Colles fascia?

<p>Scarpa's fascia (A)</p> Signup and view all the answers

Which layer of the anterior abdominal wall is predominantly fatty and provides substance to the mons pubis and labia majora?

<p>Camper's fascia (C)</p> Signup and view all the answers

Which layer of the anterior abdominal wall is described as the primary fascia or aponeurosis?

<p>Primary fascia (D)</p> Signup and view all the answers

Which layer of the anterior abdominal wall is described as the deepest layer that blends with the fat of the ischioanal fossa?

<p>Subcutaneous layer (C)</p> Signup and view all the answers

Which layer of the anterior abdominal wall contains the rectus sheath?

<p>Primary fascia (C)</p> Signup and view all the answers

Which blood vessels supply the anterior abdominal wall muscles and fascia?

<p>Inferior deep epigastric vessels (C)</p> Signup and view all the answers

Which nerve innervates the skin of the mons pubis, upper labia majora, and medial upper thigh?

<p>Ilioinguinal nerve (A)</p> Signup and view all the answers

Which incision during cesarean delivery may result in laceration of the inferior epigastric vessels?

<p>Maylard incision (C)</p> Signup and view all the answers

Which nerve supplies the anterior section of the vulva?

<p>Genital branch of the genitofemoral nerve (A)</p> Signup and view all the answers

Which gland measures 0.5 to 1 cm in diameter and lies inferior to the vestibular bulb?

<p>Bartholin gland (A)</p> Signup and view all the answers

What is the composition of the hymen?

<p>Elastic and collagenous connective tissue (D)</p> Signup and view all the answers

Which layer of the vagina provides protection and is lubricated by cervical mucus?

<p>Stratified squamous epithelium (D)</p> Signup and view all the answers

What separates the upper fourth of the vagina from the rectum?

<p>Cul-de-sac (C)</p> Signup and view all the answers

Which artery contributes to the blood supply of the posterior vaginal wall?

<p>Middle rectal artery (C)</p> Signup and view all the answers

Which lymph nodes primarily drain lymphatics from the lower third of the vagina?

<p>Inguinal lymph nodes (B)</p> Signup and view all the answers

What is the arterial supply to the vagina?

<p>Uterine and vaginal arteries (A)</p> Signup and view all the answers

Which muscle forms the perineal body?

<p>Perineal membrane (A)</p> Signup and view all the answers

What is the function of the external anal sphincter?

<p>Keeps the anal canal closed at rest (B)</p> Signup and view all the answers

What is the composition of the cervix?

<p>Collagen, elastin, proteoglycans, smooth muscle (A)</p> Signup and view all the answers

During pregnancy, which internal generative organ remains unchanged?

<p>Uterus (C)</p> Signup and view all the answers

What is the function of the round ligament?

<p>Anchors medially to the uterus and upper vagina (B)</p> Signup and view all the answers

Which lymph nodes drain the cervix?

<p>Internal iliac nodes (D)</p> Signup and view all the answers

Where does the right ovarian vein empty into?

<p>Vena cava (B)</p> Signup and view all the answers

Which structure is the male homologue of the female ovaries?

<p>Testis (D)</p> Signup and view all the answers

Which part of the female reproductive tract has a stratified squamous epithelium lining?

<p>Vagina (A)</p> Signup and view all the answers

Which nerves provide sympathetic innervation to the ovaries?

<p>Ovarian plexus (D)</p> Signup and view all the answers

Flashcards

Which nerve innervates the external female genitalia?

The pudendal nerve provides sensory and motor innervation to the external female genitalia.

What structure of the vulva is the primary erogenous zone?

The clitoris is a sensitive tissue that serves as a primary erogenous zone during sexual intercourse.

What is the role of the vulva in urination?

The vulva's primary function during micturition is to guide the flow of urine from the urethra to the exterior.

What is the significance of the labia majora during pregnancy?

During pregnancy, the labia majora expand to provide additional support and bulk to the vulva.

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Which abdominal wall layer continues as Colles fascia in the perineum?

Scarpa's fascia, a layer of the anterior abdominal wall, extends inferiorly towards the perineum as Colles fascia.

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Which abdominal wall layer primarily makes up the mons pubis and labia majora?

Camper's fascia is a layer of fatty tissue that contributes to the shape of the mons pubis and labia majora.

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What is another name for the primary fascia in the abdominal wall?

The primary fascia is a deep, aponeurotic layer in the anterior abdominal wall.

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Which abdominal wall layer is the deepest and blends with the ischioanal fossa?

The subcutaneous layer of the anterior abdominal wall is the deepest layer, merging with the fat of the ischioanal fossa.

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Where is the rectus sheath located in the abdominal wall?

The rectus sheath is located within the primary fascia of the anterior abdominal wall.

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What vessels supply the anterior abdominal wall muscles and fascia?

The inferior deep epigastric vessels provide blood supply to the muscles and fascia of the anterior abdominal wall.

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Which nerve innervates the skin of the mons pubis, labia major, and medial thigh?

The ilioinguinal nerve provides sensory innervation to the mons pubis, upper labia majora, and medial upper thigh.

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Which cesarean incision poses a risk to the inferior epigastric vessels?

The Maylard incision, used in cesarean deliveries, risks damaging the inferior epigastric vessels.

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Which nerve innervates the anterior section of the vulva?

The genital branch of the genitofemoral nerve supplies the anterior portion of the vulva.

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What is the size and location of the Bartholin gland?

The Bartholin gland, located inferior to the vestibular bulb, measures approximately 0.5 to 1 cm in diameter.

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What is the tissue composition of the hymen?

The hymen is composed of elastic and collagenous connective tissue.

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What is the purpose of the vaginal lining?

The stratified squamous epithelium lining the vagina provides protection and is lubricated by cervical mucus.

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What structure separates the upper vagina from the rectum?

The cul-de-sac separates the upper fourth of the vagina from the rectum.

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Which artery helps supply the posterior vaginal wall?

The middle rectal artery contributes to the blood supply of the posterior vaginal wall.

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Which lymph nodes drain the lower third of the vagina?

Inguinal lymph nodes are the primary drainage sites for lymphatics from the lower third of the vagina.

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What are the main arteries supplying the vagina?

The uterine and vaginal arteries provide the primary arterial supply to the vagina.

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Which muscle forms the perineal body?

The perineal membrane forms the perineal body.

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What is the function of the external anal sphincter?

The external anal sphincter is responsible for maintaining the closure of the anal canal during rest.

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What is the composition of the cervix?

The cervix consists of collagen, elastin, proteoglycans, and smooth muscle.

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Which internal reproductive organ doesn't change during pregnancy?

The ovaries are the only internal reproductive organ that remains unchanged during pregnancy.

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What is the function of the round ligament?

The round ligament anchors the uterus and upper vagina medially.

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Which lymph nodes drain the lymph from the cervix?

The internal iliac nodes primarily receive lymph drainage from the cervix.

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Where does the right ovarian vein drain into?

The right ovarian vein empties into the vena cava.

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What is the male homologue of the ovaries?

The testis is the male counterpart of the female ovaries.

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Which part of the reproductive tract is lined with stratified squamous epithelium?

The vagina is the only part of the female reproductive tract with a stratified squamous epithelium lining.

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Which nerves provide sympathetic innervation to the ovaries?

The ovarian plexus supplies sympathetic innervation to the ovaries.

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