Lecture 1: Review of Basic Embryology Flashcards
Endoderm becomes the lining of ____
The digestive system
Dorsal Hollow nerve tube becomes…
the nervous system (brain and spinal cord)
Epidermal ectoderm becomes…
parts of the epidermis (skin)
somites becomes…
scleratome, myotome, dermatome
Intermediate mesoderm becomes the…
urogenital system
nucleus pulposus of the intervertebral disc is derived from….
the notochord
All components of the circulatory system comes from what germ layer?
it is mesodermally derived
- draw transverse cross section of human embryo and adult *
https://embryology.med.unsw.edu.au/embryology/images/thumb/f/f3/Rugh_101.jpg/300px-Rugh_101.jpg
Abdomen and thorax are separated by …
the diaphragm
although the thorax and pelvic region are not separated by a defined portion, it is estimated by the
brim of the illeum
what is the diaphragm derived from?
cervical hypaxial musculature
What is the diaphragm innervated by?
the left and right phrenic nerves
What levels is the diaphragm innervated by?
C3,4, and 5 (keep the diaphragm alive)
Parietal Peritoneum is ______ derived and coats the internal surfaces of the ______ _____
Parietal Peritoneum is __mesodermally____ derived and coats the internal surfaces of the ___body___ ___wall__
Visceral Peritoneum is ______ derived and coats the _____ _____
Visceral Peritoneum is ___mesodermally___ derived and coats the __internal___ ___organs__
Mesentary is a __-Layer of _____ derived material that connects to ____ or _____ midline to suspend ___ internally
Mesentary is a Bi-Layer of __mesodermally___ derived material that connects to __dorsal__ or __ventral___ midline to suspend __gut_ internally
Parietal Pleura is…
the serial homolog of parietal peritoneum in the thorax
Visceral Pleura is…
the serial homolog of visceral peritoneum in the thorax
What are the components of the neck and thorax (components of the respiratory system)
- lungs
- bronchii
- Trachea
- Pharynx
- Nasal Pharynx
- Oral Pharynx
- Common Pharynx
What are the components of the embryonic foregut?
Even Sunnydale Demons Like Girls Panties
- Esophagus
- stomach
- doudendum (first bend of small intestine)
- liver
- gallbladder
- pancreas
Foregut receives sympathetic innervation by the _______ of the levels T_-T_ and synapses on _____
Foregut receives sympathetic innervation by the ___Greater splanchnic nerve____ of the levels T5-T9 and synapses on _celiac ganglion____
Foregut receives parasympathetic innervation by…
The Vagus Nerve (X)
The foregut receives arterial supply by…
The celiac artery and it’s branches
The foregut gets venuous drainage by…
the Splenic Vein and its tributaries
What are the components of the embryonic Midgut?
Jump! Its A Trap
- jejunum and ileum of small intestine
- appendix
- ascending colon
- transverse colon (up to LEFT COLIC FLEXURE)
Midgut receives sympathetic innervation by the _______ of the levels T_-T_ and synapses on _____
midgut receives sympathetic innervation by the __lesser splanchnic nerve__ of the levels T10-T11 and synapses on __superior mesenteric ganglion___
Midgut recieves parasympathetic innervation by…
The Vagus Nerve (X)
The midgut receives arterial supply by…
Superior mesenteric artery and its branches
The midgut gets venous drainage done by…
the superior mesenteric vein and its tributaries
What are the components of the embryonic Hindgut?
Dont Stop Running
- descending colon
- sigmoid colon
- (through to Rectum)
Hindgut receives sympathetic innervation by the _______ of the levels T_-L_and synapses on _____
Hindgut receives sympathetic innervation by the ___Lesser and least splanchnic nerves & Lumbar splanchnics____ of the levels T10-L2and synapses on ___inferior mesenteric ganglion __
Hindgut recieves parasympathetic innervation by…
-on what levels?
Sacral (caudal) outflow
-S2-S4
The hindgut receives arterial supply by…
inferior mesenteric artery and its branches
The hindgut gets venous drainage by..
inferior mesenteric vein and its tributaries
Most of the internal organs are surrounded by visceral peritoneum. These are _____ relative to the coelom. This is the _____ condition
Most of the internal organs are surrounded by visceral peritoneum. These are ___inside__ relative to the coelom. This is the __intraperitoneal___ condition
Some organs are between the peritoneum on one surface and the body wall on the other side. _____ relative to the coelom. This is the _____ condition. What is an example of this?
Some organs are between the peritoneum on one surface and the body wall on the other side. __Outside___ relative to the coelom. This is the __retroperitoneal___ condition. For example: kidneys
What are the structures in the pelvis?
- end of digestive system
- Female Reproductive organs
- Bladder
- Ducts to and existing from bladder
What structures are retroperitoneal? in other words, which structures are behind the parietal peritoneum (against body wall “anchored”)
–> mnemonic: SAD PUCKER
S: suprarenal cadrenal glands A: aorta D: Duodendum (except duodenal cap) P: pancreas U: Ureters C: colon (ascending and descending) K: kidneys E: esophagus R: rectum
