Introduction to the body Flashcards
How is the body developed?
segmentally from somites and adjacent mesoderm
What are the three parts of the trilaminar disc?
ectoderm
mesoderm
endoderm
What are the main body cavities?
cranial
pleural
pericardial
abdomino-pelvic
What two ways can the skeleton be described?
axial - skull and vertebrae including sacrum, ribs and sternum
appendicular - bones of upper and lower limbs including scapula, hip bone and clavicle
What is Hilton’s law?
the same nerves supply a joint, the muscles that act upon it and the skin that overlies it
What is the CNS and PNS made up of?
CNS - brain and spinal cord
PNS - the nerves emerging from these areas
What are the two directions of folding the trilaminar disc?
Cephalo-caudal
Lateral
What does the ectoderm contribute to?
- skin
- neural tube that becomes the spinal cord
What does the mesoderm contribute to?
The cardiovascular system
What does the endoderm contribute to?
Gastro-intestinal system
Reproductive system
Where is the visceral layer of the membrane?
On the organ
Where is the parietal layer of the membrane?
On the wall of the cavity
