The cells that cover the outer surfaces of CNS capillaries cells are the

A) microglia.
B) astrocytes.
C) monocytes.
D) leukocytes.
E) lymphocytes.


Answer: B

Anatomy & Physiology

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Tom has a condition in which the endothelial lining of his blood vessels cannot secrete prostacyclin (PGI2). How will this affect his blood?

A. Prostacyclin is a clot-dissolving enzyme, so clots will not be broken down and Tom will be at risk for an embolism or thrombosis. B. Because prostacyclin is a clotting factor that encourages formation of platelet plugs, bleeding will not be slowed. C. Prostacyclin is involved in the activation of prothrombin, so the process of clotting will not be complete. D. Because prostacyclin prevents platelets from sticking to the inside of healthy blood vessels, Tom will experience clotting and general narrowing of the blood vessels.

Anatomy & Physiology

Which is the most common type of capillary?

A.   Fenestrated B.   Sinusoids C.   Continuous D.   Venules E.   Discontinuous

Anatomy & Physiology

Sympathetic fibers issue from ________-________ regions of the spinal cord.

Fill in the blank(s) with correct word

Anatomy & Physiology

The pectoralis ________ is a muscle that protracts the shoulder and attaches to ribs 3-5 and the coracoid process.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology