embryology Flashcards
1
Q
where is spinal cord derived
A
ectoderm
2
Q
what does ectoderm form
A
CNS and PNS
Skin, hair and nails
Pituitary gland, sweat glands, tooth enamel
3
Q
what does endoderm form
A
Epithelium of the GI tract, respiratory tract.
* Hepatocytes
* Endocrine and exocrine cells of the pancreas.
4
Q
what does mesoderm ferm
A
- Muscle
- Cartilage
- Bone
- Urogenital system
- Visceral perioneum
5
Q
what tissue does posterior pituitatry originate
A
neuronal
6
Q
features of cardiac muscle
A
Striated.
Single central nucleus.
Branches connect with neighbours via intercalated discs,
connecting both chemically and mechanically.
7
Q
Features of skeletal muscle:
A
Striated- myofibrils in register.
Multinucleated- with nuclei at the edges.
Non-branching.
8
Q
Features of smooth muscle:
A
Non-striated.
Single central nucleus.
Do not branch.
9
Q
what does truncus arteriosus form
A
Aortic arches and arteries
