CNS and PNS Practice Questions fully solved & updated

Hunger and thirst drives are controlled by _____________. - answer-the hypothalamus Heart rate and dilation of blood vessels are primarily controlled by _____________. - answer-the medulla oblongata Arachnoid villi _____________ - answer-returns CSF to the venous circulation in the brain Ependymal cells _____________. - answer-are the cells that make CSF The choroid plexus _____________. - answer-where CSF if made The subarachnoid space is where the _____________ - answer-CSF circulates The arachnoid mater is _____________. - answer-between the dura and pita mater The somatic nervous system is primarily _____________. - answer-voluntary Defined as "deep" or organ pain. - answer-visceral The dorsal horn of the spinal cord carries _____________. - answer-sensory nerve fibers afferent nerve fibers Efferent nerves enter the _____________ part of the spinal cord. - answer-front Interneurons are described as _____________. - answer-nerves that are part of the CNS nerves that interpret incoming signals nerves that direct the response of other nerves The term "afferent" refers to _____________. - answer-sensory nerves that go towards the spinal cord The sensory and motor nerves that innervate the arms are part of the _____________. - answer-peripheral nervous system The CNS is composed of _____________. - answer-brain and spinal cord The anterior spinothalamic tract carries which sensations? - answer-crude touch and pressure Cranial nerve IV, the trochlear nerve, affects which eye muscle? - answer-superior oblique muscle If someone suddenly cannot stick out their tongue, which cranial nerve may be damaged? - answer-XII, hypoglossal What stimulates nociceptors? - answer-pain This type of receptors is "always on". - answer-tonic Which area of the brain is responsible for motor control of language? - answer-Broca's What is it called when the stretch reflex of antagonistic muscles must be inhibited? - answer-reciprocal inhibition Which space does CSF flow in spinal cord immediately after it leaves the brain? - answer-central canal