| Question | Answer |
| What line across the brain splits the brain into two latitudinal halves? | Central Suculus |
| What is the motor region of the brain called? | Pre-central gyrus |
| What part of the brain is responsible for sensory signals? | Post-central gyrus |
| What is the function of the corpus callosum? | Connects the two hemispheres of the brain |
| What is the cerebellum responsible for? | Nerve reflexes and autonomic nervous system |
| What is the function of the basal bodies? | Involved in co-ordinated activities |
| What is the function of the thalamus? | Receive sensory signals from the skin, and re-distributes to the cerebrum |
| What covers then spinal cord? | Meninges |
| What is the inner layer of the meninges? | Pia mater |
| What is the middle layer of the meninges? | Arachnoid mater |
| What is the outer layer of the meninges? | Dura mater |
| What do Schwann cells do? | Provide myelin in the PNS |
| What do oligodendrocytes do? | Provide myelin in the CNS |
| What do ependymal cells do? | Line the CSF filled ventricles |
| What are the collective name for; Schwann cells, oligodendrocytes, ependymal cells, & astrocytes? | Neuroglia |
| What is the resting potential of the membrane? | -70mV |
| What is the threshold membrane potential for an action potential? | -55mV |
| What happens at -55mV? | Voltage gated sodium channels open, and Na+ ions rush into the cell (depolarisation) |
| What happens at +30mV? | Voltage gated Na+ channels close, and voltage gated K+ channels open, as K+ rush out of the cell (repolarisation) |
| What happens to restore membrane potential after hyperpolarisation? | Na+/K+ pump drags in 2 K+ ions, and pumps out 3Na+ ions, making outside more positive than inside |
| The cells bodies of sensory neurons whose fibres enter the cord are found in the ___. | Dorsal root ganglion |
| What constitutes the CNS? | Brain and the spinal cord |
| The deep groove that separates the two hemispheres of the cerebrum is called the ______. | Longitudinal fissure |
