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104:theme 1 > L1 > Flashcards

L1 Flashcards

1
Q

What are the spleen and stomach linked via?

A

The gastrosplenic ligament

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2
Q

Why is the dorsal mesentery fund at the front ?

A

Rotation

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3
Q

What is the function of the inguinal canal?

A

They are gaps, thru which the testes go thru

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4
Q

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

A

Transversalis fascia
Internal oblique
External oblique

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5
Q

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

A

Innermost-
Internal spermatic fascia
Cremasteric fascia
External spermatic fascia

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6
Q

describe the endoderm?

A

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

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7
Q

Describe the mesoderm

A

Muscular layers

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8
Q

Describe the ectoderm

A

Epithelium @ extremities of tract. Cranial-mouth

Caudal-mouth

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9
Q

What processes form the primitive gut and when?

A

Results from 2 folds; cranial and caudal

@ 4 weeks

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10
Q

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

A

1) Cloacal

2) Buccopharyngea

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11
Q

what are the 3 gut divisions?

A

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

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12
Q

What organs are in the foregut?

SLOPP

A 
Oesophagus 
Stomach 
Proximal half duodenum
Liver 
Pancrease
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13
Q

What organs are in the midgut?

A 
Distal half duodenum 
jejunum 
ileum 
cecum 
Asc+3/4 transverse colon
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14
Q

What organs in the hindgut?

A

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

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15
Q

what is the primitive gut held in position by

A

Mesenteries

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16
Q

Describe the mesentery and its functions

A

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

It suspends gut organs
Pathway for VAN and lymph

17
Q

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

A

The foregut

18
Q

Describe the dorsal mesentery and its functions

A

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
Q

Where is the ventral mesentery located?

and what does it become

A

Foregut only

Gives rise to Falciform ligament

Ligaments around the liver

Degenerates during development- ecept foregut

20
Q

Generally describe the abdomen

A

Trunk below diaphragm

21
Q

What is the abdominal cavity occasionally called?

A

Abdominopelvic

22
Q

What is the abdominopelvic divided into

A

Abdomen proper

and Greater pelvis

23
Q

The greater pelvis is continuous with

A

Lesser pelvis

24
Q

Describe the barriers of the abdominal wall

A

Flat abdominal muscles
&
Lumbar vertebral column

25
Q

what are the muscles anterior to the abdominal wall

A

External oblique
Internal oblique
Transversus abdominis
Rectus abdominis

26
Q

What is the function of the External oblique and description

A

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
Q

Func and descrip of internal oblique

A 
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
Q 
Transversus abdominis 
func and descrip
A

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
Q

Rectus abdominis func and descrip

A

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

Flexes trunk
compresses viscera

30
Q

VAN of structures anterior to abdominal wall

A

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

31
Q

What additional nerves supply the rectus abdominis

A

Thoracic and subcoastal nerves

32
Q

What are the lesser and greater sacs

A

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

33
Q

What do the sacs communicate via

A

Epiloic foramen

34
Q

What is the inguinal canal

A

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
Q

What are the inguinal canals limited by

A

Superficial and deep inguinal rings

104:theme 1 (6 decks)

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