Lymph is similar to blood plasma, but very low in ________.
A. protein
B. carbon dioxide
C. sodium and potassium
D. metabolic waste
E. electrolytes
Answer: A
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The hypothalamohypophysial tract carries
A. neurons from the hypothalamus to the posterior pituitary. B. neurohormones from the hypothalamus to the posterior pituitary. C. neurons from the hypothalamus to the anterior pituitary. D. neurohormones from the hypothalamus to the anterior pituitary. E. neurons from the anterior pituitary to posterior pituitary.
Which of the following is considered the primary reproductive structure in the female?
A. Uterus B. Ovary C. Vagina D. Breast
In Guillain-Barre syndrome, the immune system attacks and degrades the myelin sheath of PNS axons. Predict the effect this will have on nerve impulse and motor function.
A. Motor signals will not be sent from the brain down the efferent pathway because the brain cannot generate them. B. Lost insulation from myelin will cause neurons of the PNS to be hyper-excitable and muscular spasms will result. C. The brain will slowly degrade and various brain functions will be lost, including motor functions. D. Lost insulation from myelin will cause neurons of the PNS to lose saltatory conduction, resulting in poor muscle function.
When a skeletal muscle fiber contracts, the
A) H bands and I bands get larger. B) zones of overlap get larger. C) Z lines move further apart. D) width of the A band increases. E) All of the answers are correct.