Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

LMC Ultrasound > AB-Spleen > Flashcards

AB-Spleen Flashcards

1
Q

The spleen is part of what system

A

reticuloendothelial system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Spleens role before the 5th or 6th month of life

A

Role in the synthesis of blood proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

After the 5th or 6th month, the spleens role is

A

Active in the body’s defense against disease; its major function is to filter the peripheral blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The spleen is..

A

The largest single mass of lymphoid tissue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Location of the spleen

A

Lies in the left hypochondrium between the fundus of the stomach and diaphragm

The interomedial surface touches the stomach, left kidney, pancreas, and splenic flexure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The spleen is covered by a protective capsule except for..

A

the hilum where the vascular structures and lymph nodes are located

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Ligaments

A

Splenorenal- attaches the spleen to the stomach and kidney; in contact with the posterior peritoneal wall, phreniocolic ligament, and gatrosplenic ligament

Gastrosplenic- composed of the two layers of the dorsal mesentery that separates the lesser sac posteriorly from the greater sac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Size of the spleen

A

Adult spleen:

8-13 cm in length

7 cm wide

3-4 cm thick

Decreases with age

Varies with nutritional status of the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The spleen receives blood from

A

the splenic artery; travels horizontally along the superior border of the pancreas

After entering the hilum, the splenic artery branches into 6 smaller arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Splenic vein

A

Formed by multiple branches with in the spleen

Leaves the hilum to join the superior mesenteric vein to form the main portal vein

Travels along posteromedial border of the pancreas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What ligaments hold the spleen in place?

A

lienorenal, gastrosplenic, and phrenocolic ligaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What causes the spleen to be displaced inferiorly?

A

A mass in the LUQ

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Caudal displacement

A

Occurs secondary to a subclavian abscess, splenic cyst, or left pleural effusion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Cephalic displacement

A

Results from volume loss in left lung, left lobe pneumonia, paralysis of the left hemidiaphragm, or large intrabdominal mass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is wandering spleen?

A

Embryologic anomaly

Results when the dorsal mesentery fails to fuse with the posterior peritoneum without supporting ligaments of the spleen

Patients may have an abdominal or pelvic mass, intermittent pain, and volvulus (splenic torsion)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Functional Characteristic of the Spleen

A

Maturation of the surface of erythrocytes

Reservoir

Culling

Pitting function

Disposal of senescent or abnormal erythrocytes

Functions related to platelet and leukocyte life span

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Describe the location of the spleen in relation to the left kidney

A

anterior and superior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

common location of accessory spleen

A

Splenic Hilum usually about 1cm -can enlarge like the rest of spleen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

sonographic signs of histoplasmosis

A

echogenic areas -“starry night” appearance

20
Q

major focal defects

A

◦Tumor (benign and malignant)

◦Infarction

◦Abscess

◦Cyst

21
Q

splenic rupture

A

related to some sort of trauma or splenomegaly spleen is removed when this happens

22
Q

subcapsular splenic rupture

A

spleen ruptures within the surrounding capsule that contains all of the blood

23
Q

wandering spleen

A

a spleen that is not held in place because the stabilizing ligaments failed to develop or were not attached

24
Q

a spleen is considered enlarged (splenomegaly) when is measures…?

A

>13cm

25
Q

primary tumors that may metastasize to the Spleen

A

breast, lung, ovary, prostate, colon, kidney and melenoma

26
Q

polycythemia vera

A

polycythemia: excess of red blood cells polycythemia vera:is a chronic disease of unknown cause that involves all bone marrow elements

27
Q

erythropoeisis

A

red blood cell production

28
Q

Red pulp

A

large number of red blood cells, fills remaining area of spleen

29
Q

White pulp

A

tiny islands throughout spleen, contains lymphocytes, marphygian corpuscles

30
Q

Pitting

A

removes nuclei from red blood cells

31
Q

Culling

A

removes abnormal red blood cells

32
Q

Situs solitus

A

normal

33
Q

Situs inversis

A

mirror image

34
Q

Situs ambiguous

A

halfway in-between

35
Q

erythropoeisis

A

red blood cell production

36
Q

clinical signs of polycythemia vera

A

weakness, fatigue, vertigo, tinnitus, irritability, splenomegaly and firmness, flushing of the face, redness and pain in extremities, blue-and-black spots

37
Q

Within the lobules of the spleen are tissues called

A

pulps (red and white)

38
Q

Lymphocytes of the spleen

A

help defend the body against infection

39
Q

Functions of the spleen as an organ as the reticuloendothelial system

A

Production of lymphocytes and plasma cells

Production of antibodies

Storage of iron

Storage of other metabolites

40
Q

Normal echotexture

A

The texture of the spleen is considered to be more echogenic than the liver. As the spleen enlarges, echogenicity further increases

41
Q

Primary benign neoplasms

A

Hamartoma-both solid and cystic components, hyperechoic

Cavernous hemangioma-isolated inhomogeneous echogenic mass with multiple small hypoechoic areas

Cystic lymphangioma-mass with extensive cystic replacement of splenic parenchyma

42
Q

Primary malignant neoplasms

A

Lymphoma-hypoechoic; diffuse involvement, focal small and large nodular, and bulky disease

Hemangiosarcoma-complex or solid, reembles cavernous hemangioma, but also can be hyperechoic

Metastases-hypoechoic but of higher echo amplitude than lymphoma; some are echodense

43
Q

Hematopoeisis

A

blood cell production

44
Q

The effect of cirrhosis to the spleen

A

congestive splenomegaly

45
Q

Causes of splenomegaly

A

LMC Ultrasound (32 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions