Anatomy 13 - The Digestive System • The Midgut and Hindgut Flashcards Preview

Second Year - Anatomy CA21007 > Anatomy 13 - The Digestive System • The Midgut and Hindgut > Flashcards

Flashcards in Anatomy 13 - The Digestive System • The Midgut and Hindgut Deck (42):
1

What comprises the digestive system in the abdomen and pelvis

The jejunum, ileum, caecum, vermiform appendix, ascending colon, transverse colon, defending colon, sigmoid colon, rectum and anal canal

2

What arteries supply the midgut and hindgut

The anterior branches of the abdominal aorta and the pelvic artery

3

What are the branches of the abdominal aorta

The superior mesenteric and inferior mesenteric

4

What does the pelvic artery supply blood to

The lower rectum and anal canal

5

What veins drain the midgut and hindgut

The hepatic portal veins

6

What is the peritoneum

The lining of the abdominal cavity

7

What does the peritoneum do

It holds the organs to the abdominal wall and also creates a smooth environment for the organs

8

The structures found within the peritoneum are known as

Intraperitoneal structures

9

What are structures stuck to the posterior abdominal wall known as

The retroperitoneal structures

10

Where does the midgut start and end

It starts at the distal duodenum and end 2/3rds along the transverse colon

11

The structures within the midgut are supplied blood from

The superior mesenteric

12

Where does the superior mesenteric sit

At L1 level of the aorta

13

What veins does blood from the midgut drain into

The superior mesenteric vein and the splenic vein

14

The jejunum and ileum are part of

The small intestine

15

The ileum joins the caecum at

The ileo-caecal junction

16

What are the jejunum and ileum suspend from

The posterior abdominal wall

17

What suspends the jejunum and ileum

Mesentery

18

What is the main function of the jejunum and ileum

To absorb nutrients

19

Where are Peyer's patches found

In the ileum

20

What are Peyer's pathes

Isolated lymphoid immune tissue

21

Function of Peyer's patches

They are involved in the development of immunity to antigens present in the small intestine

22

What is the caecum part of

The large intestine

23

What is the small outgrowth from the caecum called

The appendix

24

If the appendix becomes inflamed this is known as

Appendicitis

25

The removal of an appendix is known as an

Appendectomy

26

Where does the ascending colon end

At the hepatic flexure

27

What are the functions of the large intestine

The absorption of nutrient and water

28

What are tenure coli

Longitudinal muscle bands

29

What are haustra

Sacculations

30

What are appendices epiplocae

Fatty tags

31

Where does the hindgut start and finish

It starts at the splenic flexure and ends at the anal canal

32

What is the hindgut composed of

Distal transverse colon, descending colon, sigmoid colon, rectum and the anal canal

33

What supplies blood to the hindgut

The inferior mesenteric

34

Where does the inferior mesenteric sit

It sits at L3 level of the aorta

35

Where is blood from the hindgut drained to

Blood up to the mid-rectum is drained into the portal vein and blood from the distal rectum drains directly into the inferior vena cava

36

Where does the descending colon start and finish

It starts at the splenic flexure and ends at the sigmoid colon

37

What does the sigmoid colon pass over

The pelvic brim

38

Where does the rectum begin and end

It starts at the sigmoid colon and ends at the anal canal

39

The rectum acts as a junction between

The portal and systemic drainage of the intestine

40

Where is the anal canal

In the pelvis

41

What is the anal canal composed of

Smooth muscle and skeletal muscle sphincters

42

What do the skeletal muscle sphincters of the anal canal allow for

Voluntary control of deification