Anterior Abdominal Wall, Diaphragm, and Peritoneal Cavity Flashcards Preview

OS 206: Abdomen and Pelvis > Anterior Abdominal Wall, Diaphragm, and Peritoneal Cavity > Flashcards

Flashcards in Anterior Abdominal Wall, Diaphragm, and Peritoneal Cavity Deck (189)
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1

What is the abdomen?

Part of the trunk between thorax and pelvis that houses the digestive organs and part of the urogenital system

2

Functions of the anterior abdominal wall

1) Supports and protects viscera
2) Trunk movements (posture and rotation/flexion)
3) Ambulation
4) Increase of intra-abdominal pressure by muscle contraction
5) Disease diagnosis

3

Borders of the anterior abdominal wall

Superior: Costal margins (6th to 12th ribs) and xiphoid process
Inferior: ASIS, inguinal ligament, pubic crest, pubic symphisis
Lateral: Vertical plane thru ASIS

4

Vertebral level of the umbilicus

Between L3 and L4 / T10 dermatome

5

Fetal precursor of umbilicus

Site of fetal connection to the placenta (via umbilical vein and artery)

6

Composition of the linea alba

Union of aponeuroses of flat muscles on either side

7

T or F: Inferior to the umbilicus, the linea alba is not indicated by a groove

T

8

The linea semilunaris serves as a marker for what?

The lateral margin of the rectus abdominis

9

The transverse attachments between the anterior rectus sheath and rectus abdominis

Tendinous intersections

10

The inguinal groove extends from the ASIS to?

Pubic tubercle

11

T or F: The inguinal groove is composed of the folded lateral edge of external abdominal aponeurosis

F (It is composed of the folded inferior edge)

12

Two planes that divide the abdomen into 4 quadrants

Median plane and transumbilical plane

13

Imaginary vertical line following the linea alba from the xiphoid process to pubic symphysis

Median plane

14

Imaginary horizontal line at the level of the umbilicus

Transumbilical plane (L3 to L4)

15

Planes that divide the abdomen into 9 regions

Horizontal: Transpyloric and transtubercular planes
Vertical: Right and left midclavicular planes

16

Level of the transpyloric plane

L1 to L2

17

Aside from passing thru the pylorus, the transpyloric plane traverses what structure?

Hilum of the kidney

18

Level of the transtubercular plane

L5

19

The midclavicular planes pass from the midpoint of the clavicles to the midpoint of what structure?

Inguinal ligament

20

T or F: The subcostal plane (L3) passes thru the lower border of the 9th costal cartilage on each side

F (It passes thru the lower border of the 10th costal cartilage)

21

Three lateral regions of the abdomen (from top to bottom)

Right and left hypochondriac, right and left lumbar, right and left inguinal/iliac

22

Three median regions of the abdomen (from top to bottom)

Epigastric, umbilical, suprapubic/hypogastric

23

Contents of the right hypochondriac region

Liver, gallbladder, hepatic flexure of colon

24

Contents of the epigastric region

Liver, transverse colon, abdominal aorta and IVC

25

Contents of the left hypochondriac region

Stomach, spleen, splenic flexure of colon

26

Contents of the right lumbar region

Ascending colon, kidney, small intestine

27

Contents of the umbilical region

Duodenum, pancreas, small intestine, abdominal aorta and IVC, iliac vessels

28

Contents of the left lumbar region

Jejunum, pancreas, descending colon, kidney

29

Contents of the right inguinal region

Ileum, caecum, appendix

30

Contents of the suprapubic region

Small intestine, rectum, bladder, uterus/spermatic cords, iliac vessels