Spinal Cord 2

Which of the following is not part of a reflex arc?

• sensory receptor

• sensory neuron

• interneuron

• brain

• integrating center

Which of the following carries sensory information?

• dorsal root ganglion

• dorsal root

• ventral root

• ventral horn

• dorsal horn

Which of the following is for sensory soma?

• posterior median sulcus

• dorsal root ganglion

• ventral horn

• gray commissure

The perineurium covers

• an axon

• a fascicle

• a nerve

• a dendrite

The phrenic nerve stems from the ________ plexus

• brachial

• cervical

• lumbar

• sacral

The femoral and obturator nerves stem from the _____ plexus.

• cervical

• brachial

• lumbar

• sacral

The sciatic nerve branches from the ______ plexus.

• cervical

• lumbar

• thoracic

• sacral

Which of the following provides sensory into to the CNS via spinal or cranial nerves?

• plexus

• dermatome

• reflex

• interneuron

Which of the following reflexes is contralateral?

• stretch reflex

• withdrawal reflex

• tendon reflex

• crossed extensor reflex

Which of the following is true of the stretch reflex?

• It is ipsilateral.

• It causes contraction of the agonist muscle.

• It causes an inhibitory arc in the antagonist muscle.

• It causes an inhibitory arc in the agonist muscle.