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Human Gross Anatomy > Inguinal Canal & Spermatic Cord- Exam III > Flashcards

Inguinal Canal & Spermatic Cord- Exam III Flashcards

1
Q

Strong tube that carriers sperm cells

A

Ductus deferens

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2
Q

Blood supply that carries arterial blood to the testes

A

Testicular artery

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3
Q

Plexus of veins that drains the testes; starts out as mesh of interconnected multiple veins that will merge together ultimately on either side of the body called the testicular vein

A

Pampiniform plexus

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4
Q

Branch of lumbar sacral plexus that is sexually dimorphic

A

Genitorfemoral nerve

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5
Q

In males the genitorfemoral nerve carries _____ & _____.

In females the Genitofemoral nerve carries:

A

Somatic sensory & somatic motor

Somatic sensory only

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6
Q

The somatic motor function of the Genitofemoral nerve is responsible for the innervation of what muscle:

A

Cremaster muslce

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7
Q

List the 6 components of the spermatic cord:

A
  1. Ductus deferens
  2. Testicular artery
  3. Pampiniform plexus
  4. Genitofemoral nerve
  5. Autonomic nerves
  6. Lymphatics
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8
Q

Location of where spermatic cord passes through body wall:

A

Inguinal canal

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9
Q

Location where sperm is manufactured:

A

Testes

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10
Q

Location in which sperm matures:

A

Epididymis

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11
Q

Type of fascia that is only found anteriorly on the abdominal wall

A

Scarpa’s fascia

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12
Q

Serous lining of entire abdominopelvic cavity:

A

Parietal peritoneum

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13
Q

If the embryo becomes a male, the dermis attached to the gubernaculum will end up at:

A

Bottom of scrotum

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14
Q

If the embryo becomes a female, the dermis attached to the gubernaculum will correspond to:

A

Labia majora

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15
Q

Male gonad:

Female gonad:

A

Testes; ovary

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16
Q

Location in which gonads originate embryonically:

A

Upper lumbar region around L1

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17
Q

What process does the gubernaculum assist in:

A

Migration of gonads to adult position

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18
Q

How does the gubernaculum move the gonads:

A

By shortening

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19
Q

The location where the gubernaculum pierces through all of the abdominal wall layers will ultimately end up forming the:

A

Inguinal canal

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20
Q

Testes will start in the plane between:

A

Parietal peritoneum & transversalis fascia

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21
Q

What is the deepest abdominal wall layer that the testes must pass through:

A

Transversalis fascia

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22
Q

What is established before the testes begin migrating?

A

Blood, nerve, & lymphatic supply

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23
Q

Where are the spermatic cord contents in relation to the tests when the testes are migrating?

A

Trailing behind the testes

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24
Q

Why can’t the testes pass through the inguinal hole? Can gubernaculum pass through?

A

Testes are too large; and yes gubernaculum passes with EASE BITCH

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25
Q

Tiny hole formed by the gubernaculum piercing the Transversalis fascia to get through the abdominal wall layers:

A

Inguinal hole

26
Q

The gubernaculum continues to pull the testes even though they will never pass through. What first step must occur to get the testing to move down into the scrotum?

A

Transversalis fascia stretches like sleeve and leaves body cavity

27
Q

When the testes pass through sleeve of Transversalis fascia, what two things occur?

A
  1. Transversalis fascia thins considerably
  2. Transversalis fascia leaves body cavity & anterior abdominal wall
28
Q

At the point where the deep inguinal ring forms, we will no longer call it Transversalis fascia- it will now be called:

A

Internal spermatic fascia

29
Q

Why does the transversus abdominus not contribute to the layers of the spermatic cord?

A

Large arching lower border that the testes can easily pass under

30
Q

After the testes pass under the transversus abdominus muscle with ease, next they will bump up against:

A

Internal abdominal oblique layer

31
Q

The point at which the testes make contact with the internal abdominal oblique, this portion of the oblique is:

A

Skeletal muscle portion

32
Q

The skeletal muscle portion of the internal abdominal oblique that the testes come into contact with, will form a new inguinal ring called the:

A

Middle inguinal ring

33
Q

At the point at which the middle inguinal ring is formed, what occurs with internal abdominal oblique muscles?

A

Stretches out and forms cremaster muscle

34
Q

Why do males have a cremaster muscle when this is absent in females?

A

Male gonad has to travel outside of body cavity; in females it doesn’t

35
Q

Where is the cremaster muscle in relation to the internal spermatic fascia

A

Directly outsie

36
Q

After the IAO forms the middle inguinal ring and cremaster muscle, the testes will the bump into what layer:

A

External abdominal oblique

37
Q

When the testes make contact with the external abdominal oblique, what type of tissue is it hitting?

A

Aponeurosis (connective tissue and NOT skeletal muscle)

38
Q

The external abdominal oblique will form what final inguinal ring?

A

Superficial inguinal ring

39
Q

At the point of the superficial inguinal ring, the external abdominal oblique fascia changes its name to:

A

External spermatic fascia

40
Q

There is a small tag of gubernaculum that will attach to _____

A

Parietal peritoneum

41
Q

The small piece of parietal peritoneum attached to the gubernaculum will come out as:

A

Extension to peritoneal cavity

42
Q

The little parietal peritoneal sleeve will follow the testes down into the:

A

Scrotum

43
Q

The name of the small sleeve of parietal peritoneum (hollow) that follows down into the testes

A

Processus vaginalis

44
Q

Describe the spatial relationship between the processus vaginalius and the testes

A

The processus vaginalis ends up PROCEEDING the testes

45
Q

Where does the processus vaginalis reside:

A

Within the internal spermatic fascia

46
Q

The processus vaginalis will be empty (aside from small amount of fluid) and the spermatic cord contents lie _______ to the processus vaginalis

A

ALONGSIDE/PARALLLEL

47
Q

At birth what happens to the processus vaginalis:

A

It will close down after traveling through the inguinal canal

48
Q

At birth what portion of the processus vaginalis remains open and why?

A

Portion down in the scrotum and to provide a lubricated environment

49
Q

The processus vaginalius in the bottom of the scrotum that remains is in an adult is called:

A

Tunica vaginalius

50
Q

Extension of peritoneum that lines that adult scrotum:

A

Tunica vaginalis

51
Q

Do females have inguinal rings or spermatic cords?

A

Yes small inguinal rings , no spermatic cord

52
Q

Blood supply for testes:

A

Testicular artery & Pampiniform plexus

53
Q

Where do our spermatocord contents will open up into the abdominal cavity:

A

Deep inguinal ring

54
Q

The inguinal canal runs between the:

A

Deep inguinal ring and superficial inguinal ring

55
Q

Where do gonads start in enbryological development?

A

Upper lumbar region ~L1 to L2

56
Q

The deep inguinal ring is found about 1/2 along the:

A

Inguinal ligament

57
Q

Where is the inguinal canal in relation to the inguinal ligament?

A

ALWAYS ABOVE

58
Q

Our spermatic cord begins where our _______ ends at the superficial inguinal ring

A

Inguinal canal

59
Q

Transversalis fascia———> X

Transversus abdominus ——>

Internal abdominal oblique ———> X

External abdominal oblique ——>

A
  1. Internal spermatic fascia
  2. Non-contributory
  3. Cremastor muscles
  4. External spermatic fascia
60
Q

What rings do the following layers give rise to?

Transversalis fascia —->
Transversus abdominus——>
Internal abdominal oblique —->
External abdominal oblique —->

A
  1. Deep inguinal ring
  2. NA
  3. Middle inguinal ring
  4. Superficial inguinal ring
61
Q

Contraction of this muscle will pull the testes up toward the body; used in thermoregulation

A

Cremastor muscle

62
Q

Cremastor reflex is due to what type of innervation from what nerve:

A

Somatic sensory component of Genitofemoral nerve

Human Gross Anatomy (5 decks)

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