The brain stem consists of the ________
A) midbrain, medulla, and pons
B) pons, medulla, cerebellum, and midbrain
C) midbrain only
D) cerebrum, pons, midbrain, and medulla
A
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When hemoglobin molecules are decomposed, a greenish pigment called ________ is formed.
Fill in the blank(s) with the appropriate word(s).
The heart has the unique ability to change its workload. On average the heart can pump between ________ and ________ liters of blood per minute.
A) 1; 3 B) 10; 20 C) 5; 50 D) 5; 30 E) 2; 20
Where is the pneumotaxic center located?
A. Apneustic center B. Medulla oblongata C. Pons D. Limbic system E. Ventral respiratory group
The innermost (most anterior) layer of the retina consists of
A. the pigmented epithelium. B. nerve fibers of the ganglion cells. C. bipolar neurons. D. rods and cones. E. amacrine cells.