10 Questions
What are the three functions of the nervous system?
Sensation, integration, and response
Which part of the nervous system is responsible for analyzing sensory information?
Central nervous system
What does the autonomic nervous system control?
Involuntary functions like heart rate and breathing
What is the function of the somatic nervous system?
Movement coordination
What is the main function of the autonomic nervous system?
Maintain homeostasis and control involuntary functions
Which system is responsible for preparing the body for emergencies and activates the fight or flight response?
Sympathetic nervous system
What is the main function of the parasympathetic nervous system when the body is at rest?
Slow down involuntary functions to conserve energy
Which cells in the retina are responsible for low-light vision?
Rods
What is the function of the vitreous humor in the eye?
Maintain the eye's shape and support the retina
Which muscles enable the movement of the eye?
Extraocular muscles
Study Notes
Nervous System Functions
- The three main functions of the nervous system are controlling movements, interpreting sensory information, and regulating various bodily functions.
Nervous System Components
- The central nervous system (CNS) is responsible for analyzing sensory information.
- The autonomic nervous system (ANS) controls involuntary actions, such as heart rate, blood pressure, and digestion.
- The somatic nervous system is responsible for transmitting sensory information and controlling voluntary muscles.
Autonomic Nervous System
- The main function of the autonomic nervous system is to regulate involuntary actions and maintain homeostasis.
- The sympathetic nervous system (SNS) prepares the body for emergencies and activates the fight or flight response.
- The parasympathetic nervous system (PNS) promotes relaxation and reduces stress when the body is at rest.
Eye Anatomy and Function
- Rod cells in the retina are responsible for low-light vision.
- The vitreous humor in the eye gives it its shape, maintains its pressure, and allows light to pass through.
- The extrinsic eye muscles (inferior oblique, lateral rectus, medial rectus, superior oblique, and superior rectus) enable the movement of the eye.
Test your knowledge about the functions of the nervous system, including the Central and Peripheral Nervous Systems, and the division of human body functions into voluntary and involuntary actions. Understand the roles of sensation, integration, and response in the nervous system.
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