Physiology question 1 How is the Central Nervous System held

Physiology question: 1. How is the Central Nervous System held together?

2. Skeletal muscle tissue is striated, what is the physiological benefit of the striations?

Solution

Central nervous system consists of brain and spinal cord . Brain \'s enclosed in a protective bone called skull . Brain is held together by three layer of tissue called dura, pia and arachnoid membranes. Skeletal muscle is a straighted muscle tissue .Starighted muscle are made up of sarcomere contraction in straighted muscle is voluntary. Actin and myosin help in contraction of muscle.Straighted muscle are rich in mitochondria which release energy.