Anatomy - 1 abdominal and inguinal regions

Question 1

which organs does the greater pelvis contain

Answer 1

abdominal and pelvic organs

Question 2

which organs does the lesser pelvis contain

Answer 2

pelvic organs only

Question 3

what is the boundary between the greater and lesser pelvis?

Answer 3

pelvic inlet

Question 4

which type of peritoneum lines the

i) abdominal wall
ii) organs

Answer 4

I) parietal

ii) visceral

Question 5

what connects the two layers of peritoneum and what are the two functions of this structure?

Answer 5

connected by ligaments that

1) support abdominal organs
2) allow vessels and nerves to reach the organs

Question 6

what four muscles make up the anterior abdominal wall?

Answer 6

external oblique, internal oblique, transversus abdominis and rectus abdominis

Question 7

which anterior wall muscles lay anterolaterally and which anatomical line do they reach?

Answer 7

ext and int oblique and transversus abdominis - reach the mid clavicular line

Question 8

how do the anterolateral muscles of the ant abdominal wall continue after reaching the mid clavicular line?

Answer 8

as a tendinous sheet - aponeurosis

Question 9

what is the midline structure called where fines from the L and R apeneurosis meet?

Answer 9

linea alba

Question 10

where does the linea alba extend from?

Answer 10

xiphoid process to the pubic symphysis

Question 11

what is the rectus sheath?

Answer 11

the apeneuroses of all three anterolateral muscles

Question 12

where does the external oblique originate from and where does it insert?

Answer 12

originates from lower 8 ribs

inserts into pubic tubercle, iliac spine and linea alba

Question 13

what two thoracic muscles does the external oblique interdigitate with?

Answer 13

lat dorsi and serratus anterior

Question 14

between which two bony landmarks does the apneurosis fold on itself to become the inguinal ligament?

Answer 14

between thee superior iliac spine and the pubic tubercle

Question 15

where does transverses abdominis originate from and where does it insert ?

Answer 15

originates from inguinal ligament, lower 6 ribs, iliac crest
inserts into linea alba

Question 16

what anatomical location does the rectus muscle lack a posterior rectus sheet?

Answer 16

below the umbilicus - easy to cut far into the abdominal cavity here

Question 17

what arteries supply the 
i) upper
ii) mid
iii) lower
regions of the anterior abdominal wall

Answer 17

i) intercostal arteries
ii) superior and inferior epigastric
iii) circumflex iliac

Question 18

what is the venous drainage of the anterior abdominal wall?

Answer 18

thoraco epigastric veins

Question 19

what is the nerve supply of the ant abdo wall?

Answer 19

thoracoabdominal nerves

Question 20

what is the primary function go muscles in the ant abdominal wall?

Answer 20

flex, torsion or rotate the trunk as well as compress the viscera (apart from ext oblique)

Question 21

what is the inguinal canal composed of? (floor, ant and post wall, roof)

Answer 21

floor is medial 1/2 of inguinal ligament, anterior wall is external oblique, posterior wall is trasversalis fascia, roof is the conjoint tendon (from int oblique and TV abdomeis fibres)

Question 22

what makes up the conjoint tendon?

Answer 22

internal oblique and TV abdominis fibres

Question 23

what type of hernia passes along the length of the inguinal canal?

Answer 23

indirect inguinal hernia

Question 24

what type of hernia protrudes through a weakned conjoint tendon to appear at the superficial inguinal ring?

Answer 24

direct inguinal hernia