Which of the purely endocrine organs contain modified neurons that produce and secrete neurohormones?

Biology

1 answer:

irga5000 [103]3 years ago

4 0

Answer:

D. Only the adrenal medullae

Explanation:

The adrenal medulla is the inner region of the adrenal gland. It consists of the modified sympathetic ganglion of the autonomic nervous system and develops from the same embryonic tissue as all other sympathetic ganglia. The cells of the adrenal medulla lack axons and are [present in the form of clusters around large blood vessels.

The chromaffin cells of adrenal medulla serve the endocrine function. These cells are innervated by sympathetic preganglionic neurons of the ANS. The adrenal medulla secretes epinephrine and norepinephrine which are called neurohormone as being secreted by neurons.

You might be interested in

5 of 8 Review Living organisms make and use three main types of ribonucleic acids (RNA) for their biological functions: ribosoma

loris [4]

Answer:

<h2>A. mRNA ( messenger RNA),B. rRNA (ribosomal RNA) and C. tRNA (transfer RNA )</h2>

Explanation:

A. mRNA ( messenger RNA);

i)it is the most abundant form of RNA ,

ii) specifies the amino acid sequence for a protein ,

iii) contains exons.

B. rRNA (ribosomal RNA);

i) it is assembled in the nucleolus ,