science Flashcards
rahhh mate (25 cards)
What is the primary function of the nervous system?
To coordinate and control body activities by transmitting signals between different parts of the body.
True or False: The central nervous system consists of the brain and spinal cord.
True
Fill in the blank: The __________ nervous system is responsible for voluntary movements.
somatic
What are the two main divisions of the nervous system?
Central nervous system (CNS) and peripheral nervous system (PNS).
What is a neuron?
A specialized cell that transmits nerve impulses.
Which part of the neuron receives signals from other neurons?
Dendrites
What is the role of the myelin sheath?
To insulate axons and increase the speed of nerve impulse transmission.
Multiple Choice: Which of the following is NOT a type of neuron? A) Sensory B) Motor C) Inhibitory D) Interneuron
C) Inhibitory
True or False: The autonomic nervous system controls involuntary bodily functions.
True
What are the two branches of the autonomic nervous system?
Sympathetic and parasympathetic.
What is a synapse?
The junction between two neurons where signals are transmitted.
Fill in the blank: Neurotransmitters are chemicals that transmit signals across a __________.
synapse
What is the function of the spinal cord?
To transmit signals between the brain and the rest of the body and to coordinate reflexes.
Multiple Choice: Which part of the brain is responsible for balance and coordination? A) Cerebrum B) Cerebellum C) Brainstem D) Limbic system
B) Cerebellum
What is the function of the thalamus?
To relay sensory information to the cerebral cortex.
True or False: The limbic system is involved in emotion and memory.
True
What is the role of the hypothalamus?
To regulate homeostasis and control the autonomic nervous system.
What does the term ‘plasticity’ refer to in the nervous system?
The ability of the nervous system to change and adapt in response to experience.
Fill in the blank: The __________ lobe is primarily responsible for processing visual information.
occipital
What is the primary role of glial cells?
To support and protect neurons.
Multiple Choice: Which type of glial cell is responsible for forming the myelin sheath in the central nervous system? A) Astrocyte B) Oligodendrocyte C) Microglia D) Ependymal
B) Oligodendrocyte
True or False: The brain is divided into four main lobes.
True
What are the four main lobes of the brain?
Frontal, parietal, temporal, and occipital.
What is the role of the medulla oblongata?
To regulate vital involuntary functions such as heart rate and breathing.
