unit 1 workbook Flashcards
physical and chemical changes that occur within the body
metabolism
maintenance of normal body physiology
homeostasis
lowest horizontal imaginary line that joins the tubercles in the iliac crests
intertubercular plane
horizontal plane that passes through the pylorus, the duodenal junction, the neck of the pancreas, and the hilum of the kidneys
transpyloric plane
upper horizontal imaginary line that joins the lowest point of the costal margin on each side of the body
subcostal plane
arises from the sides of the bodies of the first two lumbar vertebrae
left crus of the diaphragm
thickened upper margin of the fascia covering the anterior surface of the psoas muscle
medical arcuate ligament
slightly curved line on the ventral abdominal wall that marks the lateral border of the rectus abdominis
linea semilunaris
ligament between the anterior superior iliac spine and the pubic area
inguinal ligament
area in the pelvic cavity between the rectum and the uterus where free fluid may accumulate
rectouterine space
arises from the sides of the bodies of the first three lumbar vertebrae
right crus of the diaphragm
fibrous band of tissue that stretches from the xiphoid to the symphysis pubus
linea alba
formed by the deflection of the peritoneum from the bladder to the uterus
vesicouterine pouch
broad muscle that separates the thoracic and abdominopelvic cavities and forms the floor of the thoracic cavity
diaphragm
thickened upper margin of the fascia covering the anterior surface of the quadratus lumborum muscle
lateral arcuate ligament
in the male, a small outpocket of the pelvic cavity containing the testes
scrotal cavity
triangular opening in the external oblique aponeurosis
superficial inguinal ring
lower portion of the abdominopelvic cavity that contains part of the large intestine, rectum, urinary bladder, and reproductive organs
pelvic cavity
the internal organs
viscera
muscles of the anterior abdominal wall
rectus abdominis muscle
attaches the liver to the anterior abdominal wall and undersurface of the diaphragm
falciform ligament
located between the anterior surface of the renal fascia and the posterior area of the peritoneum
anterior pararenal space
single layer of cells that forms the peritoneum
mesothelium
primary compartment of the peritoneal cavity; extends across the anterior abdomen from the diaphragm to the pelvis
greater sac
ligament in between the stomach and the spleen; helps support the stomach and spleen
gastrosplenic ligament
located directly around the kidney;completely enclosed by renal fascia
perirenal space
accumulation of serous fluid in the peritoneal cavity
ascites
membranous extension of the peritoneum that suspends the stomach and duodenum from the liver; helps support the lesser curvature of the stomach
lesser omentum
layer of the peritoneum that lines the abdominal wall
parietal peritoneum
ligament between the spleen and kidney
lienorenal ligament
found between the posterior renal fascia and the muscles of the posterior abdominal wall
posterior pararenal space
opening to the lesser sac
epiploic foramen
double fold of the peritoneum attached to the duodenum, stomach, and large intestine; helps support the greater curve of the stomach
greater omentum
right posterior subhepatic space located anterior to the kidney and inferior to the liver where fluid may accumulate
morison’s pouch
slit like spaces near the liver; potential space for fluid to accumulate
peritoneal recess
potential space between the parietal and visceral peritoneal layers
peritoneal cavity
layer of peritoneum that covers the abdominal organs
visceral peritoneum
peritoneal pouch located behind the lesser omentum and stomach
lesser sac
termination of the falciform ligament; seen in the left lobe of the liver
ligamentum teres
a lengthwise plane running from front to back. it divides the body or any of its parts into right and left sides, or two equal halves
sagittal
a lengthwise plane running from side to side, dividing the body into anterior and posterior portions
coronal
a plane that is horizontal to the body
transverse
a plane that is parallel to the long axis of the body or part
longitudinal
not uniform in texture and composition
heterogeneous
usually refers to a diffuse disease process or metastatic disease
infiltrating
echo-producing structure; reflects sound with a brighter intensity
echogenic or hyperechoic
interface between two fluids with different acoustic characteristics. this level will change with patient position
fluid filled level
very close to the normal parenchymal echogenicity pattern
isoechoic
sound that travels through an anechoic (fluid filled) substance and is not attenuated. there is increased brightness directly beyond the posterior border of the anechoic structure as compared with the surrounding area
enhancement, increased through transmission
completely uniform in texture or composition
homogeneous
borders are not well-defined, are ill-defined, or are not present
irregular borders
low level echoes within a structure
hypoechoic
sound beam is attenuated by a solid or calcified object
shadowing
well defined borders with internal echoes; the septa may be thin (likely benign) or thick (likely malignant)
loculated mass
without internal echoes; the structure is fluid filled and transmits sound easily
anechoic or sonolucent
tiny arteries and veins that supply the walls of blood vessels
vasa vasorum
inner layer of the vascular system
tunica intima
minute vessels that connect the arterial and venous systems
capillaries
communication between two blood vessels without any intervening capillary network
anastomosis
outer layer of the vascular system, contains the vasa vasorum
tunica adventitia
middle layer of the vascular system; veins have thinner tunica media that arteries
tunica media
arises from the posterolateral wall of the aorta, travels posterior to the inferior vena cava to supply the kidney
right renal artery
arises from the celiac axis to supply the stomach and lower third of the esophagus
left gastric artery
supplies the gallbladder via the cystic artery
right hepatic artery
vascular structure that carry blood away from the heart
arteries
arises from the celiac trunk to supply the liver
common hepatic artery
supplies the stomach
right gastric artery
branch of the common hepatic artery that supplies the stomach and duodenum
gastroduodenal artery
arises inferior to the celiac axis to supply the proximal half of the colon and the small intestine
superior mesenteric artery
the abdominal aorta bifurcates at the level of the umbilicus into these vessels, which supply blood to the lower extremities
common iliac arteries
arises from the anterior aortic wall at the level of the third or fourth lumbar vertebra to supply the left transverse colon, descending colon, sigmoid colon, and rectum
inferior mesenteric artery
arises from the posterolateral wall of the aorta directly into the hilus of the kidney
left renal artery
largest arterial structure in the body; arises from the left ventricle to supply blood to the head, upper and lower extremities, and abdominal-pelvic cavity and extremities
aorta
small branch supplying the caudate and left lobes of the liver
left hepatic artery
arises from the celiac axis to supply the spleen, pancreas, stomach, and greater omentum
splenic artery
formed by the union of the superior mesenteric vein and splenic vein near the porta hepatis of the liver
portal vein
collapsible vascular structures that carry blood back to the heart
veins
drains the spleen; travels horizontally across abdomen (posterior to the pancreas) to join the superior mesenteric vein to form the portal vein
splenic vein
drains the left third of the colon and upper colon and joins the splenic vein
inferior mesenteric vein
drains the proximal half of the colon and small intestine, travels vertically (anterior to the inferior vena cava) to join the splenic vein to form the portal veins
superior mesenteric vein
three large veins that drain the liver and empty into the inferior vena cava at the level of the diaphragm
hepatic veins
leaves the renal hilum, travels anterior to the aorta and posterior to the superior mesenteric artery to enter the lateral wall of the inferior vena cava
left renal vein
largest venous abdominal vessel that conveys blood from the body below the diaphragm to the right atrium of the heart
inferior vena cava
leaves the renal hilum to enter the lateral wall of the inferior vena cava
right renal vein