L1

Question 1

What are the spleen and stomach linked via?

Answer 1

The gastrosplenic ligament

Question 2

Why is the dorsal mesentery fund at the front ?

Answer 2

Rotation

Question 3

What is the function of the inguinal canal?

Answer 3

They are gaps, thru which the testes go thru

Question 4

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

Answer 4

Transversalis fascia
Internal oblique
External oblique

Question 5

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

Answer 5

Innermost-
Internal spermatic fascia
Cremasteric fascia
External spermatic fascia

Question 6

describe the endoderm?

Answer 6

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

Question 7

Describe the mesoderm

Answer 7

Muscular layers

Question 8

Describe the ectoderm

Answer 8

Epithelium @ extremities of tract. Cranial-mouth

Caudal-mouth

Question 9

What processes form the primitive gut and when?

Answer 9

Results from 2 folds; cranial and caudal

@ 4 weeks

Question 10

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

Answer 10

1) Cloacal

2) Buccopharyngea

Question 11

what are the 3 gut divisions?

Answer 11

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

Question 12

What organs are in the foregut?

SLOPP

Answer 12

Oesophagus 
Stomach 
Proximal half duodenum
Liver 
Pancrease

Question 13

What organs are in the midgut?

Answer 13

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

Question 14

What organs in the hindgut?

Answer 14

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

Question 15

what is the primitive gut held in position by

Answer 15

Mesenteries

Question 16

Describe the mesentery and its functions

Answer 16

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

It suspends gut organs
Pathway for VAN and lymph

Question 17

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

Answer 17

The foregut

Question 18

Describe the dorsal mesentery and its functions

Answer 18

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

Gastrosplenic

Lienorenal

Greater Omentum

Question 19

Where is the ventral mesentery located?

and what does it become

Answer 19

Foregut only

Gives rise to Falciform ligament

Ligaments around the liver

Degenerates during development- ecept foregut

Question 20

Generally describe the abdomen

Answer 20

Trunk below diaphragm

Question 21

What is the abdominal cavity occasionally called?

Answer 21

Abdominopelvic

Question 22

What is the abdominopelvic divided into

Answer 22

Abdomen proper

and Greater pelvis

Question 23

The greater pelvis is continuous with

Answer 23

Lesser pelvis

Question 24

Describe the barriers of the abdominal wall

Answer 24

Flat abdominal muscles
&
Lumbar vertebral column

Question 25

what are the muscles anterior to the abdominal wall

Answer 25

External oblique Internal oblique Transversus abdominis Rectus abdominis

Question 26

What is the function of the External oblique and description

Answer 26

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

Question 27

Func and descrip of internal oblique

Answer 27

``` 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

Question 28

``` Transversus abdominis func and descrip ```

Answer 28

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

Question 29

Rectus abdominis func and descrip

Answer 29

From: Pubic symphysis + crest To: xiphoid process 5th-7th costal cartilages Flexes trunk compresses viscera

Question 30

VAN of structures anterior to abdominal wall

Answer 30

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

Question 31

What additional nerves supply the rectus abdominis

Answer 31

Thoracic and subcoastal nerves

Question 32

What are the lesser and greater sacs

Answer 32

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

Question 33

What do the sacs communicate via

Answer 33

Epiloic foramen

Question 34

What is the inguinal canal

Answer 34

Serves as a passage way for the spermatic cord to reach scrotum in male Round ligament of uterus to reach labia majora in female

Question 35

What are the inguinal canals limited by

Answer 35

Superficial and deep inguinal rings