Nervous Systems, Sensory and Motor Mechanisms Chapter 49 and 50 Nervous Systems, Sensory and Motor Mechanisms

Structures Meninges Brain – white matter inside, grey matter outside Spinal Cord – grey matter inside, white matter outside Grey matter – nonmyelinated White matter – myelinated Meninges Pia mater Arachnoid Dura mater

Divisions of the Nervous system

Muscles Muscle -> muscle fiber -> myofibril -> sarcomere

Muscle Contraction Animation: Muscle Contraction Muscle Relaxation & Contraction Myofilament Contraction Sarcomere Contraction