Gr 9 NATURAL SCIENCES: CH 1.2 The musculoskeletal system

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What is the primary function of the nervous system?

To filter blood

To transmit nerve impulses between different parts of the body (correct)

To regulate body temperature

To produce hormones

Which part of the brain is responsible for initiating responses?

Spinal cord

Cerebrum (correct)

Cerebellum

Brainstem

What is the function of the spinal cord?

To store memories

To generate thoughts and emotions

To process sensory information

To transmit neural signals between the brain and the rest of the body (correct)

What are the basic functional units of the nervous system?

Neurons Signup and view all the answers

How do neurons communicate with each other?

Through chemical neurotransmitters Signup and view all the answers

What is the function of sensory organs?

To detect external stimuli and send information to the brain Signup and view all the answers

What type of nerves connect directly to the brain?

Cranial nerves Signup and view all the answers

What is the process of transmitting electrical impulses called?

Transmission of nerve impulses Signup and view all the answers

Which part of the neuron receives signals?

Dendrites Signup and view all the answers

What is the function of the brainstem?

To control involuntary actions Signup and view all the answers

What is the role of sensory neurons in the nervous system?

Carrying information from sensory receptors to the CNS Signup and view all the answers

What is the result of a stroke in the nervous system?

Loss of neural function due to lack of oxygen Signup and view all the answers

What is the role of the CNS in the nervous system?

Processing information and sending out motor commands Signup and view all the answers

What is a reflex action in the nervous system?

A rapid, involuntary response to stimuli Signup and view all the answers

What is the role of the endocrine system in the nervous system?

Coordinating with the nervous system to regulate body functions Signup and view all the answers

What is a common result of damage to the brain or spinal cord?

Paralysis of the limbs Signup and view all the answers

What is the impact of substance abuse on the nervous system?

Irreversible brain damage Signup and view all the answers

What is the role of motor neurons in the nervous system?

Carrying information from the CNS to muscles and glands Signup and view all the answers

What is a degenerative disorder in the nervous system?

A condition that causes progressive loss of neural function Signup and view all the answers

What is the result of damage to the nervous system?

Loss of cognitive function Signup and view all the answers

What is the primary function of the cerebrum?

To process sensory information, initiate responses, store memories, and generate thoughts and emotions Signup and view all the answers

Which part of the nervous system is responsible for coordinating reflexes?

Spinal cord Signup and view all the answers

What is the role of axons in neurons?

To send signals Signup and view all the answers

What is the function of chemical neurotransmitters in the nervous system?

To facilitate communication between neurons through synapses Signup and view all the answers

What is the main function of cranial nerves?

To connect directly to the brain Signup and view all the answers

What is the role of the cell body in neurons?

To maintain the health and function of the neuron Signup and view all the answers

What is the function of the cerebellum?

To coordinate voluntary and involuntary actions Signup and view all the answers

What is the result of the transmission of nerve impulses?

The coordination of voluntary and involuntary actions Signup and view all the answers

What is the role of dendrites in neurons?

To receive signals Signup and view all the answers

What is the function of the nervous system in relation to the external environment?

To receive and process sensory information Signup and view all the answers

What is the purpose of neurotransmitters in the nervous system?

To carry the signal to the next neuron Signup and view all the answers

Which type of neurons carry information from sensory receptors to the CNS?

Sensory neurons Signup and view all the answers

What is the main characteristic of reflex actions?

They are rapid and involuntary Signup and view all the answers

What is the role of the nervous system in maintaining homeostasis?

To coordinate with the endocrine system to maintain homeostasis Signup and view all the answers

What is a common result of damage to the brain or spinal cord due to accidents or injuries?

All of the above Signup and view all the answers

Which of the following is a degenerative disorder?

Alzheimer's disease Signup and view all the answers

What is the effect of substance abuse on the nervous system?

It can cause irreversible brain damage Signup and view all the answers

What is the purpose of the CNS in the nervous system?

To process information and send out motor commands Signup and view all the answers

What is the impact of a stroke on the brain?

It can cause brain cells to die due to lack of oxygen Signup and view all the answers

What is the role of motor neurons in the nervous system?

To send out motor commands to muscles and glands Signup and view all the answers

What is the primary role of the CNS in sensory input and motor output?

To process and integrate sensory information from multiple sources. Signup and view all the answers

What is the primary consequence of damage to the brain or spinal cord from accidents or injuries?

Loss of function, such as paralysis or cognitive impairments. Signup and view all the answers

What is the primary characteristic of reflex actions?

They are rapid, involuntary responses to stimuli. Signup and view all the answers

What is the primary role of the nervous system in regulating body functions?

To maintain homeostasis and coordinate with the endocrine system. Signup and view all the answers

What is the primary consequence of a stroke in the nervous system?

Death of brain cells due to lack of oxygen. Signup and view all the answers

What is the primary consequence of degenerative disorders on neural function?

Progressive loss of neural function. Signup and view all the answers

What is the primary role of neurotransmitters in the nervous system?

To transmit signals from one neuron to another. Signup and view all the answers

What is the primary consequence of substance abuse on the nervous system?

Irreversible brain damage and memory loss. Signup and view all the answers

What is the primary role of the sensory organs in the nervous system?

To receive and transmit sensory information from the environment. Signup and view all the answers

What is the primary consequence of trauma and injuries on the nervous system?

Loss of function, such as paralysis or cognitive impairments. Signup and view all the answers

What is the primary function of the brain in relation to the nervous system?

To process sensory information, initiate responses, store memories, and generate thoughts and emotions Signup and view all the answers

What is the main function of the spinal cord in relation to the nervous system?

To transmit neural signals between the brain and the rest of the body Signup and view all the answers

What is the function of neurons in the nervous system?

To receive, integrate, and send signals Signup and view all the answers

What is the role of sensory organs in the nervous system?

To detect external stimuli and send information to the brain for interpretation Signup and view all the answers

What is the function of the cerebrum in the nervous system?

To process sensory information, initiate responses, store memories, and generate thoughts and emotions Signup and view all the answers

What is the role of axons in neurons?

To send signals to other neurons or to muscles or glands Signup and view all the answers

What is the function of chemical neurotransmitters in the nervous system?

To facilitate communication between neurons at synapses Signup and view all the answers

What is the purpose of the brainstem in the nervous system?

To regulate essential functions such as breathing, heart rate, and blood pressure Signup and view all the answers

What is the role of the cerebellum in the nervous system?

To coordinate muscle movements and maintain posture Signup and view all the answers

What is the main function of cranial nerves in the nervous system?

To connect directly to the brain and regulate various bodily functions Signup and view all the answers

Gr 9 NATURAL SCIENCES: CH 1.2 The musculoskeletal system

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Questions and Answers

What is the primary function of the nervous system?

Which part of the brain is responsible for initiating responses?

What is the function of the spinal cord?

What are the basic functional units of the nervous system?

How do neurons communicate with each other?

What is the function of sensory organs?

What type of nerves connect directly to the brain?

What is the process of transmitting electrical impulses called?

Which part of the neuron receives signals?

What is the function of the brainstem?

What is the role of sensory neurons in the nervous system?

What is the result of a stroke in the nervous system?

What is the role of the CNS in the nervous system?

What is a reflex action in the nervous system?

What is the role of the endocrine system in the nervous system?

What is a common result of damage to the brain or spinal cord?

What is the impact of substance abuse on the nervous system?

What is the role of motor neurons in the nervous system?

What is a degenerative disorder in the nervous system?

What is the result of damage to the nervous system?

What is the primary function of the cerebrum?

Which part of the nervous system is responsible for coordinating reflexes?

What is the role of axons in neurons?

What is the function of chemical neurotransmitters in the nervous system?

What is the main function of cranial nerves?

What is the role of the cell body in neurons?

What is the function of the cerebellum?

What is the result of the transmission of nerve impulses?

What is the role of dendrites in neurons?

What is the function of the nervous system in relation to the external environment?

What is the purpose of neurotransmitters in the nervous system?

Which type of neurons carry information from sensory receptors to the CNS?

What is the main characteristic of reflex actions?

What is the role of the nervous system in maintaining homeostasis?

What is a common result of damage to the brain or spinal cord due to accidents or injuries?

Which of the following is a degenerative disorder?

What is the effect of substance abuse on the nervous system?

What is the purpose of the CNS in the nervous system?

What is the impact of a stroke on the brain?

What is the role of motor neurons in the nervous system?

What is the primary role of the CNS in sensory input and motor output?

What is the primary consequence of damage to the brain or spinal cord from accidents or injuries?

What is the primary characteristic of reflex actions?

What is the primary role of the nervous system in regulating body functions?

What is the primary consequence of a stroke in the nervous system?

What is the primary consequence of degenerative disorders on neural function?

What is the primary role of neurotransmitters in the nervous system?

What is the primary consequence of substance abuse on the nervous system?

What is the primary role of the sensory organs in the nervous system?

What is the primary consequence of trauma and injuries on the nervous system?

What is the primary function of the brain in relation to the nervous system?

What is the main function of the spinal cord in relation to the nervous system?

What is the function of neurons in the nervous system?

What is the role of sensory organs in the nervous system?

What is the function of the cerebrum in the nervous system?

What is the role of axons in neurons?

What is the function of chemical neurotransmitters in the nervous system?

What is the purpose of the brainstem in the nervous system?

What is the role of the cerebellum in the nervous system?

What is the main function of cranial nerves in the nervous system?

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