Exam 2: Lecture 9 and 10 Flashcards
How is the (Tunica) Dortos Muscle formed?
Campers and Scarpas Fascia continue into the scrotum to form the dortos muscle
What is the purpose of the Dortos muscle?
It acts to regulate the temperature of the testis to promote spermatogenesis
What is the directionality of the fibers of the tranverssus abdominus?
horzitontal
What is the action of the Tranversalis abdominus?
Compresses abdomen
What abdominal structures are found in the RUQ?
liver, gall bladder
What abdominal structures are found in the LUQ?
stomach, spleen (posterior)
How is the femoral artery formed?
common iliac artery branched to external and internal iliac artery at the inguinal ligament where it becomes the femoral artery
What abdominal structures are found in the LLQ?
descending colon, sigmoid colon
Where is the tranumblical l and vertical plane of the abdomen formed?
transumbilical plane is through the umbilicus and intervertebral disc between L3 and L4
Vertical plane is from xiphoid process to pubic symphysis
What abdominal structures are found in the RLQ?
appendix, ascending colon
What does the scrapes fascia become in the perineum?
Continues in anterior perineum as Colles fascia
What does the scrapes fascia become in the thigh?
Continues into the thigh and fuses with fascia lata
What is the rectus abdominus?
Long, flat, vertical muscle
Paired, separated at midline by linea alba
Runs from pubic symphysis to costal margin
What aponeurosis makes up the rectus abdominus?
Enclosed in the rectus sheath (ant and post- continuous with internal oblique aponeurosis)
What is the action of the rectus abdominus?
compress abdomen, flex trunk
What lymphatics drain below the umbilicus?
Superficial below umbilicus drain via superficial inguinal nodes
What lymphatics drain above the umbilicus?
Superficial above umbilicus drain via axillary nodes
What lymphatics drain deep in the umbilicus?
Deep drain via parasternal nodes
What is the action of the cremaster muscle?
Raises and lowers the testes in response to temperature of the body (sperm needs to be three degrees cooler than the body to develop)
What are the accessory digestive organs?
Liver, Gall bladder (biliary tree), Pancreas, (Appendix)
What are the Superficial inferior vasculature?
superficial epigastric artery (medial) and superficial circumflex artery (lateral); Branches of femoral artery
What is the passageway through the abdominal wall?
Passageway through abdominal wall in the inguinal region is called the inguinal canal
What components make up the foregut?
Esophagus to duodenum (until major duodenal papilla), liver, pancreas, gallbladder, spleen
How is the inguinal ligament formed?
Formed by lower border of external oblique aponeurosis
Where does the inguinal ligament attach?
attaches at ant/superior iliac spine (palpable) and will run towards pubic bone and attach on pubic tubercle
What components make up the midgut?
Duodenum (after major duodenal papilla) through small intestine and large intestine to 2/3 of the transverse colon
What are the Deep inferior vasculature of abdomen?
inferior epigastric a. and deep circumflex iliac artery (lateral) (Branches of external iliac artery)
What components make up the hindgut?
Distal 1/3 of transverse colon through superior portion of the rectum
What is the deep membraneous layer of the abdomen?
Scarpes fascia
What is the superficial fatter layer of the abdomen?
Campers fascia
What is the Superficial perineal fascia of the abdomen?
Colle’s fascia
What are 3 main unpaired branches of the abdominal aorta?
Celiac Trunk, Superior Mesenteric Artery, inferior Mesenteric Artery
What part of the gut does the celiac trunk supply?
Supplies the foregut
What part of the gut does the SMA supply?
Supplies the midgut
What part of the gut does the IMA supply?
Supplies the hindgut
What organ of the digestive track receives blood from the SMA and IMA?
duodenum
What organ of the digestive track receives blood from the Celiac Trunk and IMA?
pancreas
What makes up the anterior rectus sheath above the arcuate line?
made up of aponorsis of external and internal obliques
What makes up the posterior rectus sheath above the arcuate line?
made up of aponorsis of internal oblique and transversus abdominus
What are the 3 branches of the celiac trunk?
Left gastric, splenic, and common hepatic
What does the left gastric supply?
supplies Lesser curvature of stomach and distal esophagus
What does the splenic supply?
supplies Spleen
What does the common hepatic supply?
supplies Greater and lesser curvature of the stomach, liver and gallbladder, pancreas
What are the branches of the splenic artery?
Short gastrics, Left gastro-epiploic (gastro- omental)
What are the superficial superior vasculature drainage?
musculophrenic artery off of the Branch of internal thoracic artery
What are the branches of the common hepatic artery?
Right gastric, Proper hepatic branches right and left hepatic, cystic Gastroduodenal branches right gastro-epiploic (gastro- omental) and superior pancreaticoduodenal
What are the deep lateral vasculature drainage?
10th and 11th intercostal, and subcostal artery
What are the branches of the SMA?
Inferior pancreaticoduodenal, Jejunal, Ileal, Middle colic, Right colic, and Iliocolic
What is the role of the tendinous insertions?
they help the rectus abdominus from over contracting and flexing to prevent huntch back
What is the branch of ilocolic artery?
appendicular
What is the external spermatic fascia equal?
external oblique muscle
What is the cremasteric fascia equal to?
internal oblique muscle
What is the internal spermatic fascia equal to?
transversalis fascia
What are the layers of the spermatic cord?
External spermatic fascia,
Cremasteric fascia, Internal spermatic fascia, Parietal layer of tunica vaginalis, Cavity of tunica vaginalis, Visceral layer of tunica vaginalis
What is the Qudratolumborum muscle?
sits above hips laterally, stems from lumbar vertebrae and makes up posterior muscular compartments of abdomen
What does the inferior pancreaticoduodenal supply?
Pancreas and duodenum
What does the inferior middle colic supply?
transverse colon
What does the right colic supply?
ascending colon
What does the iliocolic supply?
Cecum, Ilium, Appendix
What do the ileal and jejunal branch supply?
Jejunum, and Ileum
What are the major branches of the IMA?
left colic, sigmoid, and superior rectal?
What does the left colic supply?
descending colon, and distal part of transverse colon
What does the sigmoid and superior rectal supply?
sigmoid colon, superior rectum