14. Coordination and Response Flashcards
What is a nerve impulse?
An electrical signal that passes along nerve cells (neurones)
What is the difference between the central nervous system and the peripheral nervous system?
The central nervous system is the brain and the spinal cord, the peripheral nervous system is every other part of the nervous system
What is an involuntary action?
What is the main function of the nervous system?
To coordinate and control the body’s responses to internal and external stimuli.
True or False: Hormones are part of the nervous system.
False
What are the two main systems involved in coordination and response?
The nervous system and the endocrine system.
Fill in the blank: The _______ is responsible for processing sensory information.
brain
What is a reflex action?
An automatic and rapid response to a stimulus.
Multiple choice: Which of the following is NOT a part of the central nervous system? A) Brain B) Spinal cord C) Peripheral nerves
C) Peripheral nerves
What is the role of neurotransmitters?
To transmit signals across synapses between neurons.
True or False: The endocrine system uses electrical signals to communicate.
False
What is the difference between voluntary and involuntary actions?
Voluntary actions are consciously controlled; involuntary actions occur automatically.
Fill in the blank: The _______ gland is known as the ‘master gland’ of the endocrine system.
pituitary
Multiple choice: Which hormone is responsible for the fight or flight response? A) Insulin B) Adrenaline C) Thyroxine
B) Adrenaline
What is the function of the sensory neurons?
To carry signals from sensory receptors to the central nervous system.
True or False: Effectors are organs that produce a response to a stimulus.
True
What type of feedback mechanism is used to maintain homeostasis?
Negative feedback mechanism.
Fill in the blank: The _______ nervous system controls voluntary movements.
somatic
Multiple choice: Which part of a neuron receives signals? A) Axon B) Dendrites C) Synapse
B) Dendrites
What is the role of the hypothalamus?
To regulate homeostasis and control the endocrine system.
True or False: The autonomic nervous system controls voluntary muscle movements.
False
What is a synapse?
The junction between two neurons where neurotransmitters are released.
Fill in the blank: The _______ is responsible for balance and coordination.
cerebellum
Multiple choice: Which structure connects the brain to the spinal cord? A) Medulla B) Cerebrum C) Thalamus
A) Medulla
What role do hormones play in the body?
They act as chemical messengers to regulate various physiological processes.
True or False: The sympathetic nervous system prepares the body for rest.
False
What is the function of motor neurons?
To carry signals from the central nervous system to effectors.
Fill in the blank: The _______ is the part of the brain responsible for higher cognitive functions.
cerebrum
Multiple choice: Which of the following hormones regulates blood sugar levels? A) Cortisol B) Insulin C) Estrogen
B) Insulin
What is the role of the adrenal glands?
To produce hormones that help regulate metabolism, immune response, and stress.
True or False: The parasympathetic nervous system is responsible for the ‘fight or flight’ response.
False
What is the primary function of the spinal cord?
To transmit messages between the brain and the rest of the body.
Fill in the blank: The _______ is the part of the brain that controls involuntary actions.
brainstem
Multiple choice: Which neurotransmitter is involved in mood regulation? A) Dopamine B) Serotonin C) Both A and B
C) Both A and B
What is a stimulus?
Any change in the environment that can provoke a response.
True or False: All reflex actions involve the brain.
False
What is the process of homeostasis?
The maintenance of a stable internal environment within the body.
