Which renal structure is responsible for producing hypertonic urine by reabsorbing water while allowing metabolic wastes and NaCl to pass through?
A. Glomerulus
B. Collecting duct
C. Nephron loop
D. Distal convoluted tubule
E. Proximal convoluted tubule
Answer: B
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The function of the chordae tendineae and papillary muscles is to hold the AV valves wide open during diastole to ensure complete ventricular filling
Indicate whether the statement is true or false
Which of these vessels does NOT carry oxygen-rich blood to the brain or do they all carry oxygen-rich blood to the brain?
A. internal carotid arteries B. external carotid arteries C. vertebral arteries D. all of them carry oxygen-rich blood to the brain
The middle cerebral peduncles connect the cerebellum to the
A. diencephalon. B. medulla. C. spinal cord. D. midbrain. E. pons.
Output from higher brain centers can bypass both the DRG and VRG and go directly to ________, which controls the accessory muscles of respiration
A) the vagus nerve B) the diaphragm C) the cerebral cortex D) spinal integration centers