Which of the labeled steps in the diagram represent formation of the endocardial tubes?
a) A
b) B
c) C
d) D
e) E
b
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Which is not a function of the digestive system?
A. Defecation B. Ingestion C. Secretion D. Absorption E. Micturition
The thymus is located posterior to the
A. manubrium of the sternum. B. body of the sternum. C. xiphoid process of the sternum. D. None of the above; the thymus is anterior to the thyroid gland.
Identify the veins that combine to form the brachiocephalic vein
A) external jugular, internal jugular, vertebral, and subclavian veins B) external carotid, internal carotid, external jugular, and internal jugular veins C) dural sinuses D) dural sinus and carotid sinus E) occipital, vertebral, and dural sinuses
The ________ is an especially important center of autonomic control.
A. pons B. hypothalamus C. pituitary gland D. medulla oblongata E. midbrain