Expert: Walter Hintz - 7/13/2006

Question
On question 2 I was thinking it would be C.  Why did you rule C out?

Thanks.  ~Teres

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Followup To

Question -
Could you help me again with a couple of questions?

1.  In which of the following ways are mature human sperm and eggs similar? a) they both have the same number of chromosomes in their nuclei; b) they are both the same size; c) they are both equipped with a flagellum that provides mobility; d) they are both produced after ovulation.  

2.  The close relationship between the endocrine and nervous systems is shown in the: a) existence of numerous glanads in the brain; b) short-lived nerve impulses which trigger longer-lasting hormonal affects; c) use of the term "neuroendocrine system"; d) all of the above

3.  Drug addiction may be caused by: a) competing with protein receptors for binding of neurotransmitters; b) stimulation a reduction of proteini receptors in synapses; c) stimulating enzymes that destroy neurotransmitters; d) all of the above

4.  Phagocytes are white blood cells that: a) react quickly to foregin cells entering the body; b) consume pathogens by the process called phagocytosis; c) are components of pus; d) all the above.

Thanks.  ~Teresa


Answer -
Hi Teresa
1.a
2.b
3.b I am not sure about this one
4. d

Answer
Because endocrine secretions are stimulated by nerve impulses.  Both involve homeostasis. Nerve inpulses bring about a fast response and hormones a longer response.  The terminology neuroendocrine system involves regulation by the pituitary gland.  I suppose that it could be an answer but it does not necessarily imply a "close " relationship.