9 22 Anatomy-Table 1 Flashcards
What are the seven “shelves” of the abdominal wall?
Skin; Hypodermis; External muscle fascia; muscle and aponeuroses; internal muscle fasica; Extra-coelomic tissue.
Mesothelium lining the internal surface of the body cavity
Coelomic Sac
Layers of the abdominal wall composed of Epithelium with some connective tissue
Skin and Coelomic Sac
Layers of the abdominal wall composed of adipose and CT
Hypodermis and Extra-coelomic tissue
layers of the abdominal wall composed of dense connective tissue
External muscle fascia and internal muscle fascia
layers of the abdominal wall composed of skeletal muscle and some dense CT
Muscle and aponeuroses
how do we identify the left and right on an anotomical image?
it is just the left and right as you look at it.
the layer below the skin that is mostly fat
hypodermis
superficial layer of the hypodermis that is primarily adipose te\issue and fat
camper’s fascia
deepest layer of the hypodermis that is made of dense connective tissue
scarpa’s fascia
goes all the way around the abdominal wall, made of dense connective tissue and sub the hypodermis
External muscle fascia layer
external muscle fascia in the back of the abdomen
The acolumbar fascia
External muscle fascia in the side of the abdomen
fascia of external oblique
External muscle fascia in the front of the abdoment
blends with rectus sheath
what are the general muscle layers of the body wall as derived from the hypomere
ventral strap muscles; the 4-layered lateral wall muscles; subvertebral layer.
what are the first 2 layers of the body wall muscles in the abdomen
The external oblique: has a supracostal and bodywall muscles
what is the 3rd layer of body wall muscle in the abdomen called?
the internal oblique muscle
what is the fourth layerof the body wall muscles in the abdomen called
Transverse abdominis muscle; qudralus lumborum muscle (in the back)
what is the subvertebral layer muscle in the abdominal
psoas major muscle (there is a psoas minor muscle too!)
the internal muscle fascia beneath the abdominal muscles
transversalis fascia
the fascia continuous with the transversalis fascia but over the layer four muscle in the back
quadralus lumborum fascia
the fascia continuous with the transversalis fascia but over the subvertebral layer muscle
Psoas fascia
the fatty adipose and connective layer that is between the internal muscle fasia and coelomic sac
the extra-coelomic tissue
the extra-coelomic tissue that is just before the coelomic sac in the front
preperitonial fascia
The extra-coelomic tissue that is behind the coelomic sac in back
Retroperitoneal fascia
the mesothelium lining the abdominal body cavity
Coelomic sac
“pariatal pleura” of the abdominal cavity
coelomic sac
the layer of the coelomic sack on the side of the body wall
the parietal layer of the coelomic sac
The fold in the coelomic sack in the front of the abdominal wall
the median umbilical fold
The fold in the coelomic sck in the front of abdominal wall but on either side of the center line
th medial umbilical folds
the fold int the coelomic sack in the front of the abdominal wall but on either side of the medial line
Lateral umbilical folds
The parietal layer of the coelomic sac can been seen as the:
Parietal peritoneum of the abdominal cavity
what is the median umbilical fold surrounding?
the Urachus (obliterated umbelical)
what is the medial umbilical fold surrounding?
obliterated umbilical arteries
what is the lateral umbilical folds surrounding?
the inferior epigastric arteries and viens
What are the layers of the abdominal wall
Skin; Hypodermis (camper’s fasica, Scarpa’s fascia); External oblique and associated apenerousies; Internal oblique with associated apenerousies; Transverus abdominis muscles; transversalus fascia; Extra coelomic fascia or extra serousal fascia or extraperitoneal fascia (also known as preperitoneal, subperitoneal, or retroperitoneal fascia depending on location) the perietal peritonium
what happens to the transversus abdominis muscle as you go down the abdominal
it fuses with the transversalis fascia
located in the extraperitoneal fascia and space, not in the processus vaginalis
the testis
what happens as the testis is pulled down to form the scrotum
the abdominal wall layers come with it so that all of the layers exist in the scrotum
the extra space that is an extension of the peritoneal cavity into the scrotum
processus vagniatis
surrounds the testis with a little fluid
the processus vaginaitis
the canal that connects the testis with the abdominal wall
the inguinal canal
the outside opening of the canal that conects the testis with the abdominal wall
the superficial inguinal canal
the opening of the canal on the inside of the abdominal wall that connects the testis with the abdominal wall
The deep inguinal ring
the boundery of the inguinal canal
the layers of the abdominal wall
The layers of the abdominal wall in the inguenal areal
skin, dartos muscle/fascia; ext. spermatic fascia; inguinal ligament; cremaster muscle/fascia; internal spermatic fascia; tunica vaginalis; contents of the spermatic cord
what does the sublayer of the skin contribute to in the inguinal region
th dartos
what does the ext. oblique muscle/ aponeurosis become in the inguinal region?
the Ext. spermatic fascia
the inferior of the exterior oblique apenerousious that attaches to the anterior/superior iliac spine and goes down to the pubic bone.
The inguinal ligament
what does the int. oblique muscle become in the inguinal region?
the cremaster muscle fascia
what does the cremaster muscle do?
control the distance from the body for the testis to control the temp to keep it neer 34 degree C
what does the trans. abd. aponeurosis become in the ingunal?
nothing
what does the transversalis fascia become in the inguinal region?
internal spermatic fascia
what does the perietal peritonium become in the inguinal region
the tunica vaginalis
when would the periatla peritoneium and the tunica vaginalis be connected?
in a hernia, otherwise never connected!
what does the extraperitoneal fascia correspond to in the inguinal region
the contents of spermatic cord
what are the contents of the spermatic cord
the ductus deferens;
why is the ductus deferens have very smooth thick smooth muslce?
to move sperm at a fast rate
provides blood supply to the testis through the inguinal canal
Testicular artery
tranport blood from the testis out the inguinal canal
papiniform plexus of veins
provide innervation to the spermatic cord
illioinguinal nerve; and the genital branch of the genitofemoral nerve
where does the illioinguinal nerve course
not through the deep inguinal ring but does go through the inguinal canal and out the superficial inguinal canal.
describe the dermitome inervation in the abdomen
IC nerve gives rise to the