Which structure ultimately regulates the passage of materials from the blood into the cerebrospinal fluid and the brain?
A. Pia mater
B. Dura mater
C. Arachnoid mater
D. Meninges
E. Blood-brain-barrier
F. Cranium
Answer: E
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Anchoring proteins
A) attach the plasma membrane to other structures in the cell. B) are detected by immune cells. C) have enzymatic functions. D) transport solutes across plasma membrane. E) permit the passage of water and small solutes.
Which of these chemical substances, when released into the blood, would cause blood pressure to decrease?
A. epinephrine B. angiotensin C. aldosterone D. vasopressin E. atrial natriuretic factor
Which hormone plays a role in the development and activity of lymphocytes?
A. Thyroid stimulating hormone B. Thymosin C. Adrenocorticotropin hormone D. Melatonin E. Erythropoietin
Which muscle has an inferior, middle, and superior part in which each has a different origin, insertion, and action?
A. Levator scapulae B. Trapezius C. Rhomboid major D. Rhomboid minor