____________ join with the epithelium of blood vessels to form blood-brain barrier in the brain.

The thoracic cage is formed by ______.

The somatic division is involved in controlling ______.

The ____________ controls the ability to speak.

The root of a hair is located within a _________, an inward tubular extension of the epidermis into the dermis.

Select the correct statement regarding skin functions.

Select the three muscles that compose the hamstrings and flex the leg.

Acromegaly results from the ______.

_________ stimulates Ca2+ deposition by osteoblasts and Ca2+ excretion by the kidneys.

_________ stimulates the thyroid gland to secrete calcitonin.