Lesson 2 (Part 2) Flashcards
Omentum
Is a layer of fat that acts as insulation for your organs
Do you normally see omentum on an ultrasound? Why or why not?
- No
2. Because if it is normal it is thin
What are 2 posterior muscles close to the spine?
- Psoas
2. Quadratus lumborum
What are 3 lateral muscles of the anterior border?
- External oblique
- Internal oblique
- Transverse abdomenous
What is the medial muscle of the anterior border?
Rectus abdominus
Where does the rectus abdominus run down?
Down the midline from the thorax to the pubis
What is the most outer anterior muscle?
External oblique
What is the middle anterior muscle?
Internal oblique
What is the inner most anterior muscle?
Transverse abdominus
Aponeuroses
Is a broad flat sheet of connective tissue
What forms the rectus sheath?
The aponeuroses of the external/internal oblique and the transverse abdominus
What does the rectus sheath cover?
Rectus abdominus fuse in the midline
Linea albe
Tough band of connective tissue in the midline
- white line
What is the echogenicity of the linea alba compared to muscles?
Hyperechogenic
- brighter
What type of tissue is cura?
Connective
What is the sonographic appearance of muscles?
Medium level of echogenicity
- may seem high echogenicity fibrous strands within
What is the sonographic appearance of pure fat?
Anechoic
What is the sonographic appearance of fat mixed with water?
Can be echogenic
What is the sonographic shape of the diaphragm?
Curvilinear
- dome shaped
What is the sonographic contour of the diaphragm?
Smooth
What is the sonographic echogenicity of the diaphragm? (3)
- Muscles are a hypoechoic band
- Interface between liver (or spleen) is echogenic
- thin - Interface between diaphragm and lung is echogenic
- thicker
What anchors the diaphragm to the spine and joins the midline?
Crura
How does the right crura show up on an ultrasound?
This hypoechoic band
- the left is not normally seen
