Which of the following is the correct pathway of sperm cells from their formation to ejaculation?
A. Seminiferous tubule, rete testis, epididymis, ductus deferens, ejaculatory duct, urethra
B. Seminiferous tubule, epididymis, rete testis, ejaculatory duct, ductus deferens, urethra
C. Seminiferous tubule, epididymis, rete testis, ductus deferens, ejaculatory duct, urethra
D. Seminiferous tubule, rete testis, epididymis, ejaculatory duct, urethra, ductus deferens
E. Seminiferous tubule, epididymis, rete testis, urethra, ejaculatory duct, ductus deferens
Answer: A
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A pre-synaptic axon contacts the dendrite of a post-synaptic neuron. How would you describe the synaptic relationship?
A. It is an electrical synapse. B. It is an excitatory synapse. C. It is an axosomatic synapse. D. It is an axoaxonic synapse. E. It is an axodendritic synapse.
Matching
A) Conus medullaris B) Cauda equina C) Filum terminale D) Cervical enlargement 42) Where nerves serving the upper limbs arise. 43) Anchors the spinal cord to the coccyx. 44) Collection of nerve roots at the inferior end of the vertebral canal. 45) Inferior point of termination of the spinal cord in an adult.
Vitamin C is a
A. fat-soluble, nonessential vitamin. B. water-soluble, nonessential vitamin. C. fat-soluble, essential vitamin. D. water-soluble, essential vitamin.
The Peripheral Nervous System is composed of sensory neurons and motor neurons.
a. true b. false