overview of body cavities Flashcards
fluid-filled
space inside the body that holds
and protects vital organs
* Separated by membranes and
other structures
body cavity
smooth tissue membrane that lines organs and the inside
wall of cavitie
serous membranes
lines the organ
visceral membrane
lines the wall
parietal membrane
small space filled with fluid in between (potential
space). _____ in normally found here.
* Found around the lungs (pleura), heart (pericardium), and
abdomen (peritoneum)
serous fluid
associated structures of thorax
breast tissue
components of throax
Thoracic wall
* Mediastinum (everything except the lungs)
* Plerual cavities (lungs)
* Thoracic diaphragm
an imaginary plane at the joint of two sternal bones.
* Vertebral level between T4 and T5
* Separates the superior and inferior mediastinum
* Articulation of Rib 2
* Trachea bifurcates
* Boundaries of the aortic arch
sternal angle
MEDIASTINUM
* Superior
* Contains the Great Vessels, Trachea,
Esophagus, nerves, thoracic duct
inferior
* Anterior- Thymus, connective tissue
* Middle- Heart, pericardium, nerves
* Posterior- Esophagus, thoracic aorta,
azygous system of veins, nerves
abdomniopelvic cavity
superior
bounded by diaphrgam
ABDOMINOPELVIC CAVITY
- Inferior
continuous with pelvis (pelvic inlet)
ABDOMINOPELVIC CAVITY
- Posterior- Vertebral column and abdominal
wall - Lateral- abdominal wall and rib
what are some abdominal functions
Houses and proctors major viscera
* All the GI system, the spleen, and parts
of the urinary system
* Breathing
* Relaxes and contracts for breathing
(coughing and sneezing)
* Changes intra-abdominal pressure
* Voiding
* Childbirth
esophagus
stomach
digestive tract
Duodenum
* Jejunum
* Ileum
small intestine
Cecum
* Ascending colon
* Transverse colon
* Descending colon
* Sigmoid colon
large intestine
rectum
accessory digestive organs
liver
gallbladder
pancreas
other organs/structures
Spleen
* Adrenal glands
* Kidneys & ureters
* Appendix
* Vessels and lymphatics
Organs that are completely covered by peritoneum,
suspended
intraperitoneal
Thin membrane that lines the walls of the abdominal cavity
and much of the viscera
peritoneum
Organs outside of the peritoneal cavity, with part of the
organ covered by peritoneum
retroperitoneal
part of the duodenum
* Ascending colon
* Descending colon
* Part of the rectum
* Part of the pancreas
* Kidneys and ureters (urinary system)
* Adrenal glands
* Aorta/IVC
retroperitoneal structures
Bile is made in the liver for fat digestion
* Bile is stored in the gallbladder
* Bile moves down the biliary tree through the
major duodenal papilla into the duodenum
biliary tree
Thoracic, lumbar and sacral splanchnic nerves carry sympathetic fibers
Pelvic splanchnic nerves carry parasympathetic fibers
abdominal innervation
pelvic cavity : male
Urinary Tract (most anterior
structure)
* Reproductive:
* Prostate
* Seminal Vesicles
* Vas deferens
* Digestive tract (most posterior
structure)
Urinary Tract (most anterior
structure)
* Reproductive:
* Vagina
* Uterus (cervix)
* Fallopian tubes
* Ovaries
* Digestive tract (most posterior
structure)
perlvic cavity female
Contain and supports bladder, rectum, anal
canal, and reproductive tracts.
* Anchors the roots of the external genitalia
* Kegel muscles
pelvic floor
