Nervous System Anatomy Worksheet A Complete each sentence with a word made from the word in brackets: 1 The brain is ______________ in the cranium and the spinal cord is protected by the vertebrae. (CLOSE) 2 The meninges are three layers of ______________ membranes surrounding the brain and spinal cord. (PROTECT) 3 The ______________ layer of the meninges is the pia mater, tightly bound to the surface of the brain. (INNER) 4 If a person is _____________, he or she is unconscious and unable to wake up. (COMA) 5 Multiple sclerosis is a degenerative __________ disease of the CNS attacking the myelin sheath. (INFLAMMATION) B Choose the correct option. 1 Dentists _____ the tissue around the tooth before they drill. A die B dead C deaden D deafen 2 The nervous system is ____ into two major areas: CNS and PNS. A divorced B broken C separated D divided 3 An injury to the brainstem can result ______ death. A at B for C in D into 4 The brain __ of the cerebrum, diencephalon, brainstem and cerebellum. A comprises B contains C consists D compasses 5 The pons is a rounded area on the ventral surface of the brainstem ___ contains fibres connecting regions of the brain. A who B where C which D whose C Definitions reflex Schwann cells dendrites midbrain cerebral cortex dura mater arachnoid autonomic nervous system corpus callosum ganglion __________ outermost and toughest of the three meninges __________ part of the brain between the hypothalamus and the pons that regulates visual/auditory reflexes __________ outermost layer of the cerebrum made entirely of grey matter __________ involuntary and rapid response to a stimulus __________ cells that form the myelin sheath around axons of neurons in the PNS __________ weblike middle layer of the three meninges covering the brain and spinal cord. __________ any collection of nerve cell bodies forming a nerve centre in the PNS __________ part of the peripheral nervous system that controls involuntary actions, such as heartbeat __________ large band of neurons connecting the two cerebral hemispheres __________ branchlike extensions of neurons that carry impulses toward the cell body