Amniocentesis would be an appropriate mechanism to test for Down Syndrome (trisomy 21).
Answer the following statement true (T) or false (F)
True
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What two muscles insert on the calcaneal tendon?
A. Tibialis posterior and popliteus B. Gastrocnemius and soleus C. Flexor digitorum longus and flexor hallucis longus D. Tibialis anterior and extensor digitorum longus E. Extensor hallucis longus and fibularis longus
The glial cell that protects neuron cell bodies located within ganglia is the
A. satellite cell. B. ependymal cell. C. neurolemmocyte. D. astrocyte. E. oligodendrocyte.
The vertebrate eye has a blind spot because it is formed through a series of invaginations of the epidermis
Indicate whether the statement is true or false
Which of these combinations represents a convergent pathway in the nervous system?
A) One presynaptic neuron synapses with four postsynaptic neurons. B) One presynaptic neuron synapses with one postsynaptic neuron. C) Three presynaptic neurons synapse with one postsynaptic neuron. D) An afferent neuron synapses with an association neuron. E) Collateral axons from a presynaptic neuron synapse with several postsynaptic neurons.