EEB 240 * 4 September notes
were included w/ last
weeks noter be they
wenabout the Mediastinum
septi Inferior part of thorax, superior part of abdomen Esophanel & sphincter round muscles Hiatus
Leyes, mouth, pupils
not one, but ACTS LIKE ON
We also discuss several other topics like What is the modern development in microbiology?
o contracts & closes
•Esophageal hiatus esophagus descends
• Caval opening : superior vena cava
descends thre here
• Aortic Hiatus descending aorta If you want to learn more check out What is the function of psychodynamic models?
inferior portion of abs, lumbar vertebrae, superior portion of
stomach, liver, spleen, kidney
rest behind ribs
•Spleen : completely covered by ribs oliver: almost completely covered by ribs Don't forget about the age old question of Where did telemachus go on his journey?
•Kidney: protected by floating rits Wall Divisions | 4 or a
Base of Ribs.
Most interior transvers line
Superficial Wall supeficial arteries & veins just skin deep sympathetic nerves Skin
Stud Don't forget about the age old question of . what main region of the body would include the head, neck and trunk?
Lysmall branches to skin
Wall Muscles I
layers (like. Thorax)
External Abdominal Oblique Musc.
- not parallel, at an angle - originates from ribs - inserts into pelvis or inguinal
(Anterior rectus sheath)
Inguinal ligament - goes from iliacerest lmost inferior point of muscles in abdominal wall)
External Abdominal oblique muscle
- Rectus Abdominis
Internal Abdomis Oblique Masc. - "fan" shape
- Linee alba "white line"
Liternum base of pubis
Aponuerosis (rectus sheath)
below rectus addominis
Rectus Abdominis oblique muscle
Transversus Abdominis Musle - Forms posterior nectus sheath
o but not near groun
Armate line opoint @ which rectus abdomights goes down like in a pocket
Anterior wall (from within the cavity)
• Parietal Peritoneum "gae" posterior to partenor rectus sheath
Lo all organs in abdomen adjacento *hernia - inherently a weakness in wall
~ Cross section ~