Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MED 2031 Wks 1-6 > ABDOMEN WALL ANATOMY > Flashcards

ABDOMEN WALL ANATOMY Flashcards

1
Q

 What are the layers traversed

 Laterally?

A

 Skin
 Subcutaneous tissue
 Camper fascia (superficial fatty layer)
 Scarpa fascia (deep membranous layer)
 Superficial layer of investing fascia (covers the muscle)
 External oblique – inferomedial
 Intermediate layer of investing fascia (covers the muscle)
 Internal oblique – superomedial
 Deep layer of investing fascia (covers the muscle)
 Transverse abdominus muscle
 Transversalis fascia (aka endoabdominal fascia)
 Intraperitoneal fat
 Parietal peritoneum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

 What are the layers traversed

 medially?

A

 Skin
 Subcutaneous tissue
 Rectus sheath
-Superior to umbilicus: rectus abdominis is in between 2 layers of aponeurosis of internal oblique)
-Inferior to umbilicus: rectus abdominis is below rectus sheath

 Rectus abdominis
 Transversalis fascia
 Extraperitoneal fat
 Peritoneum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

 Rectus sheath

A

made of the aponeurosis of external oblique muscle, aponeurosis of internal oblique muscle and aponeurosis of transversus abdominis.

also encloses superior n inferior epigastric vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

 Rectus sheath

A

made of the aponeurosis of external oblique muscle, aponeurosis of internal oblique muscle and aponeurosis of transversus abdominis.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

external oblique way

A

inferomedial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

internal oblique way

A

superomedial/ inferolateral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

transversus abdominis way

A

transversely

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

neurovasculature runs bw

A

internal oblique and transversus abdominus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

arcuate line

A

halfway bw umbilicus and pubic symphysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

vascular supply of anterolateral wall

superiorly

A

superior epigastric artery
musculophrenic artery
(both of these are terminal arteries to the internal thoracic artery)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

vascular supply of anterolateral wall

laterally

A

branches of 10th, 11th intercostal arteries n subcostal artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

vascular supply of anterolateral wall

laterally

A

branches of 10th, 11th intercostal arteries

subcostaal artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

vascular supply of anterolateral wall

inferiorly

A

inferior epigastric artery (branch of external iliac artery)-medially/centre of abdo is

deep circumflex iliac artery- laterally - like near hips is

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

venous drainage

A

Thoracoepigastric vein – flow between superficial epigastric vein (tributary of femoral vein) and lateral thoracic vein (tributary of the axillary vein)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

internal thoracic artery

A

internal thoracic runs parasternally. if u see sternal and 2 circles next to it, its that.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Skin, muscles, parietal peritoneum and anterolateral abdominal wall supplied by
the __ spinal nerves.

A

T7-L1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

nerves of abdo wall

A

T7-T11 (intercostal/thoracoabdominal nerves)-goes bw internal oblique and transversus abdominis muscles; enter the rectus sheath

T12 (subcostal nerve)

Iliohypogastric nerve (L1)

Ilioninguinal nerve (L1) – passes through the inguinal canal (further down than iliohypogastric)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Dermatomes

A

Nerves T7-T9 supply the skin from the xiphoid process to just above the
umbilicus.
! T10 supplies the umbilicus.
! Nerves T11-L1 supply skin from below the umbilicus to the pubic region.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

superficial lymphatic vessels:

above the transumbilical plane

A

axillary lymph nodes

20
Q

superficial lymphatic vessels:

Below transumbilical plane

A

superficial inguinal lymph nodes

21
Q

hesselbach’s triangle

A
  • laterally by the inferior epigastric artery;
  • medially by the rectus abdominis muscle; and
  • inferiorly by the inguinal ligament
22
Q

inguinal ligmaent is from aponeurosis of which muscle

A

external oblique

23
Q

inguinal canal contents

A

• In men,spermatic cord
• In women, Round ligament of the uterus
• In both sexes, Ilio-inguinal nerve
and other stuff

24
Q

boundaries of inguinal canal

roof

A

falx inguinalis

Arching fibres of the internal oblique and transversus abdominis

25
Q

boundaries of inguinal canal

ANTERIOR:

A

External oblique aponuerosis,

internal oblique muscle (laterally

26
Q

boundaries of inguinal canal

FLOOR

A 
inguinal ligament 
lacunar ligament (medially)
27
Q

boundaries of inguinal canal

POSTERIOR

A 
transversalis fascia
conjoint tendon (medially)
28
Q

deep inguinal ring is ___ to inferior epigastric artery

A

lateral

29
Q

cremaster muscle

A
  • Contracts: lifts testis up to save heat –wen its cold
  • Relaxes to lower testists wen its hot
  • Innervated by genital branch of genitofemoral nerve
30
Q

dartos muscle

A

wrinkles skin of scrotum

31
Q

spermatic cord covering

A

external spermatic fascia-external oblique
cremasteric fascia-internal oblique
internal speramtic fascia- transversalis fascia

32
Q

scrotum layers

A 
skin
superficial fascia (with dartos muscle)
external spermatic fascia
cremasteric muscle n fascia
internal spermatic fascia
arealar tissue
tunica vaginalis
33
Q

contents of scrotum

A

vessels: testicular artery, cremasteric artery, artery to vas, pampiniform plexus of veins
nerves: genital branch of genitofemoral nerve
other: ductus deferens, processus vaginalis, lymphatics

34
Q

penis n scrotum drain to

A

superficial inguinal lymph nodes

35
Q

testis drain into

A

right n left lumbar (caval/aortic) lymph nodes

36
Q

septum of scrotum

A

continuation of darts fascia, divide scrotum to right n left part

37
Q

nerve supply of scrotum

A

anterior surface: anterior scrotal nerves off illioinguinal nerve (L1)

posterior surface- posterior scrotal nerves off the perineal branch of the pudendal nerve (S2-S4)

38
Q

which testes hangs lower?

A

left.

left drains into left renal vein (smaller than ivc)
right drains into IVC
difference in speed of venous blood drainage causes this difference

39
Q

which testes hangs lower?

A

left.

left drains into left renal vein (smaller than ivc)
right drains into IVC
difference in speed of venous blood drainage causes this difference -

left hangs more- higher pressure

40
Q

vascular supply of testes

A

testicular arteries

& pampiniform venous pelxus

41
Q

innervation of scrotum

A
  • Anterior 2/3 by ilioinguinal nerve

* Posterior 1/3 by pudendal nerve

42
Q

innervation of testis

A
  • Sympathetic + pelvic autonomic fibres
  • Sensory fibres T10-11
  • NO parasym supply
43
Q

transpyloric plane

A
  • Fundus of GB
  • Neck of the pancreas
  • Pylorus of the stomach
  • Duodenum (first part)
  • Crosses hila of kidneys
  • Duodenal-jejunal flexure
  • Colic flexure (splenic + hepatic)
  • Origin of SMA from aorta
  • Termination of SMV into HPV
  • Conus medullaris
  • Cysterna chyli
  • Root of transverse mesocolon
44
Q

transpyloric plane

A

L1/L2 disc

aka 9th costal cartilage

45
Q

transpyloric plane

A

L1/L2 disc
aka 9th costal cartilage

located halfway between the umbilicus and xiphisternum (or halfway between the sternal notch and pubic symphysis).

MED 2031 Wks 1-6 (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions