derivatives of the 3 germ layers Flashcards
1
Q
Endoderm derives into what epithelial parts in relation to respiratory tract?
A
- trachea
- bronchi
- lungs
2
Q
Endoderm derives into what epithelial parts in relation to near gastrointestinal tract?
A
- liver
- pancreas
- urinary bladder
- urachus
3
Q
what are the derivatives of the endoderm related to the pharynx ?
A
epithelial parts of the pharynx
thyroid gland
tympanic cavity
pharyngotympanic tube
tonsils
parathyroid glands.
4
Q
What are the main 2 derivatives of the ectoderm ?
A
- surface ectoderm
- neuroectoderm (neural crest & neural tube)
5
Q
Derivatives of surface ectoderm
A
- epidermis, hair, nails, cutaneous and mammary glands
- anterior part of pituitary gland
- enamel of teeth
- internal ear
- lens of eye
6
Q
derivatives of neural crest
A
- cranial and sensory ganglia and nerves
- medulla of suprarenal gland
- pigment cells
- pharyngeal arch cartilages
- head mesenchyme and connective tissue
- bulbar and conal ridges in heart
7
Q
derivatives of neural tube
A
- central nervous system
- retina
- pineal body
- posterior part of pituitary gland
8
Q
Mesoderm can be divided how ?
A
- head
- paraxial mesoderm
- intermediate mesoderm
- lateral mesoderm
9
Q
derivatives of head of mesoderm ?
A
- cranium
- connective tissue of head
- dentin
10
Q
derivatives of paraxial mesoderm ?
A
- muslces of head
- striated skeletal muscle (trunk, limbs)
- skeleton except cranium
- dermis of skin
- connective tissue
11
Q
derivatives of intermediate mesoderm ?
A
- urogenital system including gonads, ducts, accessory glands
12
Q
derivatives of lateral mesoderm ?
A
- connective tissue and muscle of viscera
- serous membranes of pleura, pericardium and peritoneum
- primordial heart
- blood and lymphatic cells
- spleen
- suprarenal (adrenal) cortex
