Refer to the figure showing a scanning electron micrograph and figure of a chick embryo. What are the number, letter, and name of the structure immediately ventral to the neural tube? What is one of its functions?
A) 5, b, epidermal ectoderm; functions to form epidermis
B) 4, d, neural crest; functions to form spinal cord
C) 2, d, chordamesoderm; functions to initiate neurulation
D) 2, e, notochord; functions as structural support
E) 1, c, somite; functions to form muscles

Question

Refer to the figure showing a scanning electron micrograph and figure of a chick embryo.  What are the number, letter, and name of the structure immediately ventral to the neural tube? What is one of its functions?
A) 5, b, epidermal ectoderm; functions to form epidermis 
B) 4, d, neural crest; functions to form spinal cord 
C) 2, d, chordamesoderm; functions to initiate neurulation 
D) 2, e, notochord; functions as structural support 
E) 1, c, somite; functions to form muscles

Quizplus · Accepted Answer

The structure immediately ventral to the neural tube is the notochord, which is represented by number 2 and letter e in the figure. Its function is to provide structural support and also to induce the formation of the neural tube.

Refer to the Figure Showing a Scanning Electron Micrograph and Figure