Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Viscera & Visceral Systems > Lecture 10 - Anterior Abdominal wall and inguinal region > Flashcards

Lecture 10 - Anterior Abdominal wall and inguinal region Flashcards

(59 cards)

Start Studying
1
Q

The muscle layers in the abdo are important for what role?

A

rewspiration - increasing intra abdominal pressure - urination, defecation and child birth

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

Once inside the muscles we have a ______ layer which is continuous with pelvic cavity below

A

Once inside the muscles we have a peritoneum layer which is continuous with pelvic cavity below

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

So there is skin, _______ fascia and then _layers for abdominal (flat) muscle - very similar to thorax

A

So there is skin, superifical fascia and then 3 layers for abdominal (flat) muscle - very similar to thorax

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

Lining the internal surface of rectus abdominus is _______ fascia and then extra peritoneal ___ before the peritoneum.

A

Lining the internal surface of rectus abdominus is transversalis fascia and then extra peritoneal fat before the peritoneum.

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

The 3 muscles attach to what superiorly?

A

Costal margin - but 3 layers wold get too crowded

Superficial -over top
middle - to the border
inferior - innerside

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

The 3 muscles are fleshy lateral (very clear msucle fibres) but in the midline they are replaced by _______ membrane

A

The 3 muscles are fleshy lateral (very clear msucle fibres) but in the midline they are replaced by aponeurotic membrane

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

The relationship of the abdominal wall to the spermatic cord and teses is important, why?

A

The spermatic cotrd traverses these abdomial wall muscles

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

External oblique is homologous with whihc other msucle

A

external intercostals

“Front pocket” msucles - medially and inferiorly orientated

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

The most superior fiberes of EO overlap what?

A

the costal margin - touches pec major and serratus anterior

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

EO attaches to what inferiorly?

A

anterior half of iliac crest and the ASIS

Then jumps down and attaches to pubic tubercle/crest (free inf. edge between - thickened, called the inguinal ligament)

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

Internal Oblique (IO) is on what direction

A

back pockets - posterior and inferior

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

How does IO insert superiorly?

A

perfectly ont he costal margin

thoracolumbar fascia posteriorly

linear alba medially

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

How does IO insert inferiorly?

A

Anterior half of the iliac crest and the ASIS

Lateral 2/3 of the inguinal ligament

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

True or False

The fibres of IO arise from the inguinal ligament

A

True

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

True or False

the lowest most fibres of IO don’t go to the linear alba

A

True

they arise from the inguinal ligament, arch over and attach to the pubic tbercle

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

Transversus Abdominus (TA) goes ____ the costal margin

A

Transversus Abdominus (TA) goes inside the costal margin

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

The lowermost fibres of TA arise from ______ of inginal lig.

A

lateral 1/3

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

True or False

Superiorly, TA is continuous in origin with the diaphragm

A

True

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

Posteriorly, Ta goes as far as …

A

the thoracolumbar fascia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Anteriorly, TA meets at the ..

A

linear alba

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The Lowermost fibres of TA also arise from the inguinal ligament, but the ________ - fibres then arch over and insert into the _____ _______ (join with __in a conjoined tendon)

A

The Lowermost fibres of TA also arise from the inguinal ligament, but the lateral 1/3 - fibres then arch over and insert into the pubic tubercle (join with IO in a conjoined tendon)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Rectus Abdominis (RA) is a pair of ______ oriented muscles in the midline

A

Rectus Abdominis (RA) is a pair of longitudinal oriented muscles in the midline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

RA is anchored inferiorly at the ___ ____, as they ascend - they get ___ overlapping the front of the ____

A

RA is anchored inferiorly at the pubic crest, as they ascend - they get wider overlapping the front of the ribcage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

RA inserts on costal cartilages ….

25
Three tendonous intersections of RA interrupt the vertical fibres - divides the muscle in _ compartments that makes the muscle fibres more ______
Threee tendonous intersections interrupt the vertical fibbres - divides the muscle in 4 compartments that makes the muscle fibres more powerful
26
Where are the 3 tendonous interuptions of RA?
2 in between sternum and umbilicus 3. at the umbilics
27
Aponeurosis of the 3 lateral muscles creates what...
a sheath for RA
28
The nerves and vessels also relate to the ____ _____
The nerves and vessels also relate to the rectus sheath they are within
29
How do the abdominal wall muscles arrange themselves around RA?
TA goes behind, Internal splits into 2 external is in front
30
aponeurosis of EO is synonymous with what?
the Rectus sheath (fibrous envelope)
31
At a point halfway between the umbilicus and the pubic bone all 3 aponeuroses pass above the __
At a point halfway between the umbilicus and the pubic bone all 3 aponeuroses pass above the RA Happens all of a sudden - only have an anterior rectus sheath
32
The posterior rectus sheath is lost at a distinct point - where is this?
halfway between the umbilicus and pubic bone
33
What is the nerve supply to the anterior abdominal wall?
Lower six intercostal nerves - T7-12 skin and muscles
34
What is the artery supply to the anterior abdominal wall?
The superior epigastric a. (branch of the internal thoracic) meets the inferior epigastric (from external iliac) to supply the the anterior abdominal wall The superficial epigastric (from femoral a.) is also in the superficial fascia
35
Where does the arterial supply run?
in the posterior rectus sheath.
36
There is dual venous drainage of ant. abdominal wall what are they?
Cava system and Portal vein it is a site overlap for the two systems
37
Which veins follow the arteries in the ant. abdominal wal?
super and inferior epigastric veins (+superificial and deep) veins follow the arteries
38
From the medial side of the inguinal ligament there is a slight extension - some fibres reflect onto the pectineal line of the pubic bone, what is this called?
lacunar ligament
39
What is the pectineal ligament?
small linear attachment that follows along the pectineal line
40
What is the triangle opening created by the free inferior edge of EO - extending between the ASIS and pubic tubercle
The superficial inguinal ring
41
Where to the testes develop?
on the posterior abdominal wall in the extraperitoneal fat (quite deep in the abdominal)
42
WHen do they descend into the scrotum?
28th week
43
The scrotum has ___and ________ ______ continuous with the anterior wall
The scrotum has skin and superficial fascia continuous with the anterior wall
44
What do the testes have to traverse through?
the 3 muscles of abdo wall transversus fascia traverse through the inguinal canal
45
From the deep inguinal ring the inguinal canal continues 5 cm and the exit point is where?
The superficial (external) ring which is a triangular deficiency in the external oblique aponeurosis
46
What creates the roof of the inguinal canal?
the arches of TA and IO
47
What is the order of strucutres that the testes passes through on its way to the scrotum
Transversalis facia TA IO EO
48
What is the deep inguinal ring?
a hole in fascia transversalis a fingerbreadth above the inguinal ligament halfway between the ASIS and pubic tubercle
49
As the testes descending they bring the vas deferens and associated vessels - can see them clearly before the enter the canal - but not after because...
they bcome encolsed in sheaths: internal spermatic fascia (through fascia transversalis) cremaster beneath the arching fibres of EO External fascia from the ring
50
What is the superficial ring
medial opening the EO aponeurosis
51
What is the Deep ring
deficiency "outpouching" of fascia transversalis
52
What is the floor of the Inguinal canal?
Inguinal ligament
53
What is the anterior wall of the inguinal canal?
EO aponeurosis IO muscle (lat)
54
What is the posterior wall of the inguinal canal?
Transversalis fascia, conjoint tendon (med)
55
The external spermatic fascia is derived from...
external inguinal ring
56
The protrusoin of abdomial contents through the abdominal wall is called a..
Hermia - usually at a site of weakness at linea alba, umbilical Scars may allow it to happen
57
What wil cause inguinal hernias?
Raised intra abdominal pressure 0 abdominal contents leave through the inguinal.
58
Indirect hernias mean..
Arise from incompltee closure of the processus vaginalis Contents are going through the canal - is possible to push contents back up
59
What are DIRECT hermia's?
Protrusion through a weakness in its posterior wall

Viscera & Visceral Systems (25 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions