ANATOMY

GENERAL ANATOMY

EMBRYOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is not a neural crest derivative
A
Corneal Endothelium
B
Optic Nerve Sheath
C
Melanocytes
D
Vitreous Proper
Explanation: 

Detailed explanation-1: -Unlike in the head, the mesenchyme in the trunk is not derived from the neural crest.

Detailed explanation-2: -The derivatives of the neural crest are ectomesenchyme, endocrine cells, cells of the peripheral nervous system, and enteric cells.

Detailed explanation-3: -The cranial, cardiac, vagal, and trunk neural crests are the four primary portions of the neuraxis that produce neural crest derivatives. The majority of the head’s connective and skeletal components, as well as nerves and pigment cells, are produced by the cranial neural crest.

Detailed explanation-4: -The cardiac neural crest cells can develop into melanocytes, neurons, cartilage, and connective tissue (of the third, fourth, and sixth pharyngeal arches).

There is 1 question to complete.