The ________ lacks blood vessels and must be nourished by materials diffusing from blood vessels in the ________.
A. hypodermis; dermis
B. dermis; subcutaneous tissue
C. epidermis; subcutaneous tissue
D. epidermis; dermis
Answer: D
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Answer the following statements true (T) or false (F)
1. The ciliary body attaches to and adjusts the lens. 2. The iris is the colored portion of the eye that surrounds the pupil. 3. The insertion point for extraocular muscles is the sclera. 4. The sclera contains blood vessels that nourish the deep portion of the retina. 5. Lens contains highly organized collagen fibers causing it to be transparent.
A stroke is the sudden interruption of the blood supply to the brain.?
Indicate whether the statement is true or false
The cessation of bleeding is specifically called ________
A) a vascular spasm B) coagulation C) platelet plug formation D) homeostasis E) hemostasis
The plateau in the action potential of cardiac muscle results from the action of ________.
A. K+ outflow B. K+ inflow C. slow Ca2+ channels D. Na+ inflow E. fast Ca2+ channels