Vertebrate Nervous System

• Are you aware of all the activities within your nervous system? Why is this advantageous?

  No, you are not aware of all the activities within the nervous system. This is advantageous because we don't have to constantly remind ourselves to breathe, digest food, or keep our hearts beating, these are all controlled by the autonomic nervous system.
• 20/20: Snellan. Can see what a normal person sees from 20ft away.
• Medulla: Regulates breathing.
• Pons: Relays signals from forebrain to cerebellum.
• Cerebellum: Key role in coordinating muscle activity, tone, and posture.
• Thalamus: Sensory relay sensor.
• Hypothalamus: Link between nervous and endocrine systems. Maintains homeostasis and physiological needs such as hunger, thirst, body temperature.
• Cerebrum: Speech, reasoning, emotions.
• Olfactory Bulb: Primarily functions in smell.
• Cerebral Cortex: Outer layer of cerebrum.
• Corpus Callosum: White matter that connects left and right hemispheres.
• Dorsal Hollow Neural Tube: Forms forebrain, midbrain, hindbrain.
• Neural Tube: Forms spinal cord.
• Hindbrain: Forms medulla, pons, cerebellum.
• Brain Stem: Medulla, pons, midbrain.
• Forebrain: Forms thalamus, hypothalamus, cerebrum, olfactory bulbs.
• Gyri: Raised.
• Sulci: Valleys.
• Gray Matter: Cell bodies and dendrites.
• White Matter: Myelinated axons.