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Flashcards in L1 Deck (35):
1

What are the spleen and stomach linked via?

The gastrosplenic ligament

2

Why is the dorsal mesentery fund at the front ?

Rotation

3

What is the function of the inguinal canal?

They are gaps, thru which the testes go thru

4

What are the 3 layers that the spermatic cord passes through from innermost- outermost

Transversalis fascia
Internal oblique
External oblique

5

What are the subsequent names of the spermatic cord takes after passing through the layers?

Innermost-
Internal spermatic fascia
Cremasteric fascia
External spermatic fascia

6

describe the endoderm?

Majority of gut, most of epithelium, & glands of the digestive tract

7

Describe the mesoderm

Muscular layers

8

Describe the ectoderm

Epithelium @ extremities of tract. Cranial-mouth
Caudal-mouth

9

What processes form the primitive gut and when?

Results from 2 folds; cranial and caudal

@ 4 weeks

10

@ 4 weeks what membranes are the cranial and caudal ends enclosed by?

1) Cloacal
2) Buccopharyngea

11

what are the 3 gut divisions?

Foregut
Midgut
Hindgut
(look at the pics in the slide)

12

What organs are in the foregut?
SLOPP

Oesophagus
Stomach
Proximal half duodenum
Liver
Pancrease

13

What organs are in the midgut?

Distal half duodenum
jejunum
ileum
cecum
Asc+3/4 transverse colon

14

What organs in the hindgut?

1/4 transverse colon+descending +sigmoid colon and rectum

15

what is the primitive gut held in position by

Mesenteries

16

Describe the mesentery and its functions

Double layer of peritoneum
Dorsal and ventral
Relative to the gut tube

It suspends gut organs
Pathway for VAN and lymph


17

What is part of the ventral mesentery that doesn't degenerate during development?

The foregut

18

Describe the dorsal mesentery and its functions

Attaches to organs, posterior to abdominal wall,
gives rise to a set of organs:
Mesentery of small and large intestine

Gastrosplenic

Lienorenal

Greater Omentum

19

Where is the ventral mesentery located?
and what does it become

Foregut only

Gives rise to Falciform ligament

Ligaments around the liver

Degenerates during development- ecept foregut

20

Generally describe the abdomen

Trunk below diaphragm

21

What is the abdominal cavity occasionally called?

Abdominopelvic

22

What is the abdominopelvic divided into

Abdomen proper

and Greater pelvis

23

The greater pelvis is continuous with

Lesser pelvis

24

Describe the barriers of the abdominal wall

Flat abdominal muscles
&
Lumbar vertebral column

25

what are the muscles anterior to the abdominal wall

External oblique
Internal oblique
Transversus abdominis
Rectus abdominis

26

What is the function of the External oblique and description

From- outer surface of lower ribs
to: Linea alba-down midline:
ending at the iliac crest
and pubic tubercle

Works with internal oblique for torsional movement of trunk

27

Func and descrip of internal oblique

From: lateral 1/3 inguinal ligament
ant 2/3 iliac crest
To: linea alba
coastal margin
Rest of pubic bone

Flex and rotate trunk
compress viscera

28

Transversus abdominis
func and descrip

From: Lat 1/3 inguinal ligament
Int surface lower 6 ribs
Iliac crest
To: Linea alba Crest of pubic bone

Compress and support viscera

29

Rectus abdominis func and descrip

From: Pubic symphysis + crest
To: xiphoid process
5th-7th costal cartilages

Flexes trunk
compresses viscera

30

VAN of structures anterior to abdominal wall

V-Thoracoepigastric
A-Sup and inf epigastric, intercostal and circumflec iliac
N- Thoracoabdominal

31

What additional nerves supply the rectus abdominis

Thoracic and subcoastal nerves

32

What are the lesser and greater sacs

Formed via organ rotation
Lesser-behind stomach
Rest of peritoneal cavity- greater sac

33

What do the sacs communicate via

Epiloic foramen

34

What is the inguinal canal

Serves as a passage way for the spermatic cord to reach scrotum in male

Round ligament of uterus to reach labia majora in female

35

What are the inguinal canals limited by

Superficial and deep inguinal rings