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Questions and Answers
What is the main function of the nervous system?
What is the main function of the nervous system?
- To make the body grow
- To ensure the body's functions run smoothly (correct)
- To make the body move
- To control the body's temperature
Which part of the nervous system is referred to as the 'command center'?
Which part of the nervous system is referred to as the 'command center'?
- Nerves
- Peripheral Nervous System
- Central Nervous System (correct)
- Brain Stem
What is the role of the Peripheral Nervous System?
What is the role of the Peripheral Nervous System?
- To control the body's senses
- To think and process information
- To transmit messages between the Central Nervous System and the rest of the body (correct)
- To coordinate the body's functions
What is the function of the brain and spinal cord in the nervous system?
What is the function of the brain and spinal cord in the nervous system?
What does the nervous system allow the body to do?
What does the nervous system allow the body to do?
What is the primary mechanism by which muscles move the body parts?
What is the primary mechanism by which muscles move the body parts?
How many muscles are present in the human body?
How many muscles are present in the human body?
Which of the following is NOT a function of muscles?
Which of the following is NOT a function of muscles?
What is the role of the skeletal muscles in the human body?
What is the role of the skeletal muscles in the human body?
What are the three basic forms of muscle?
What are the three basic forms of muscle?
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Study Notes
The Nervous System
- The nervous system is the body's control system that ensures everything runs smoothly.
Structure of the Nervous System
- The nervous system consists of two main teams: the Central Nervous System (CNS) and the Peripheral Nervous System (PNS).
Central Nervous System (CNS)
- The CNS is the command center of the nervous system.
- The CNS consists of the brain and spinal cord.
Peripheral Nervous System (PNS)
- The PNS is responsible for transmitting messages between the CNS and the rest of the body.
- The PNS is composed of nerves that act as speedy messengers.
The Muscular System
- Muscles produce movement through contraction and relaxation.
Types of Muscles
- There are 3 basic forms of muscle: skeletal, smooth, and cardiac.
Total Muscles in the Human Body
- The human body has 650 muscles in total.
Movement Process
- The brain, nerves, and skeletal muscles work together to produce movement.
Functions of Muscles
- Movement: muscles enable movement of body parts.
- Posture: muscles help maintain posture.
- Body Temperature: muscles help regulate body temperature.
- Contraction of the heart: cardiac muscles are responsible for heart contraction.
- Construction of organs and vessels: muscles help construct and maintain organs and vessels.
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