Ablow to the head may cause diabetes insipidus by

a. triggering the hypersecretion of hypothalamic-inhibiting hormones
b. triggering the hyposecretion of hypothalamic-inhibiting hormones
c. interfering with the normal transmission of adh to the posterior
d. pituitary via the axons of hypothalamic neurons causing hypersecretion of adh

C. interfering with the normal transmission of ADH to the posterior pituitary via the axons of hypothalamic neurons

Explanation:

nephrogenic diabetes insipidus results from failure of the kidneys to respond to ADH,

Central diabetes insipidus head injury or blow that cause damage to the hypothalamus or pituitary gland

Answers are C and D.

Explanation:

Diabetes insipidus is a disease that affect or hinder the secretion of or response to the vasopressin, a pituitary hormone is impaired.

It is caused by damage to the pituitary gland or hypothalamus which may result through head injury, tumor, etc.

the answer for apex is "1 and 6"

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.