A molecule such as a neurotransmitter or a hormone that ______ is called a(n) ligand.
Fill in the blank(s) with the appropriate word(s).
binds to a receptor
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Which is a change in bone architecture or mass related to aging?
A. Insufficient calcification B. Demineralization C. Reduction in the organic content of the matrix D. Loss of flexibility and increase in brittleness E. All of the choices are correct.
The embryonic origin of the anterior pituitary gland is
A. glandular tissue from the cerebrum. B. epithelium from the oral cavity. C. an outpocket of the nasal cavity. D. nervous tissue from the area of the hypothalamus.
The ________ is the outermost meninx covering the brain and spinal cord.
Fill in the blank(s) with the appropriate word(s).
Which of the following is a true statement?
A) The head of the humerus articulates with the acromion process. B) The greater tubercle of the humerus articulates at the coracoid process of the scapula. C) The rotator cuff is responsible for the flexible extensions at the elbow joint. D) The anular ligament surrounds the head of the radius.