Embryology Flashcards
Muscle tissue from
Paraxial mesoderm
Bone from
Paraxial mesoderm
Cartilage from
Paraxial mesoderm
Skin dermis from
Paraxial mesoderm
Types of mesoderm
Paraxial —> somites
Intermediate
Lateral —> somatic (parietal) and splanchnic (visceral)
(Nearest to furthest from neural tube)
Urogenital system from
Intermediate mesoderm
Visceral covering of organs in thorax and abdomen
Splanchnic lateral mesoderm
Inside of chest/ abdominal wall
Aka parietal tissue
Somatic lateral mesoderm (parietal)
Epidermis of skin from
Ectoderm
Hair nails teeth enamel
From
Ectoderm
Cns from
Ectoderm
Pns from
Ectoderm
Glands from
Ectoderm
Bits of eye from
Ectoderm
Lining of GI tract from
Endoderm
Lining of respiratory tract
Endoderm
(?Lining of )urinary bladder
Endoderm
Truncus arteriosus
Ascending aorta and pulmonary artery
Bulb is cord is
Smooth part of (right )ventricle
Primitive ventricle
Traveculated part of ventricles
Atrium
Tabeculated atria
Sinus venous
Coronary sinus and smooth R atrium and IVC
Primitive pulmonary vein
Smooth left atrium
How many aortic branches
6
What fuses to form primitive heart tube
Endocardial tubes
Rhombencephalon comprises what
What do they become
Metencephalon (pons, cerebellum)
Mylencephalon (medulla)
4th ventricle within here
penis/clit from
genital tubercle
urethra surroundings (corpora spongiosum)/ labia minora from
genital folds
scrotum/ labia majora from
genital swellings
lung embryology stages and timings and content
embryonic (4-7w) - lung buds off primtive gut tube (foregut endoderm)- respiratory diverticulum
psuedoglanfular (7-16w) - L/R bronchi develop and some more
canalicular (16-25w) respiratory bronchioles and terminal sacs develop off of terminal bronchioles
alveolar (25w-birth) - alveoli devlopment inc type 1 and 2 penumocytes and surfactant
