Ch. 7.6 Nervous System Key Terms
contains the sympathetic and parasympathetic nervous systems
What is the autonomic nervous system?
the largest and highest section of the brain, responsible for reasoning, thought, memory, judgement, speech, sensation, sight, smell, hearing, and voluntary movement
What is the cerebrum?
located below the cerebrum, responsible for conducting impulses between brain parts and for certain eye and auditory reflexes
What is the midbrain?
consists of the nerves and has two divisions: autonomic and somatic nervous system
What is the peripheral nervous system?
acts as a relay center and directs sensory impulses to the cerebrum
What is the thalamus?
a mass of nerve tissue protected by membranes and the cranium(skull)
What is the brain?
the section located between the cerebrum and midbrain. It contains two structures, thalamus and hypothalamus
What is the diencephalon?
a combination of many nerve fibers located outside the brain and spinal cord
What are nerves?
located below the midbrain and in the brainstem, controls reflex actions like chewing, tasting, saliva production, and respiration
What is the pons?
hollow spaces that connect with each other and with the arachnoid membrane
What are the ventricles?
consists of the brain and spinal cord
What is the central nervous system?
optimizes and controls the autonomic nervous system, temperature, appetite, water balance, sleep, blood vessel constriction/dilation, anger, fear, pleasure, pain, and affection
What is the hypothalamus?
a highly organized, complex body system that coordinates all the activities of the body
What is the nervous system?
carries messages between the central nervous system and the brain
What is the somatic nervous system?
the largest and highest section of the brain, responsible for reasoning, thought, memory, judgement, speech, sensation, sight, smell, hearing, and voluntary movement
What is the cerebrum?
the section below the back of the cerebrum, responsible for muscle coordination, balance, posture, and muscle tone
What is the cerebellum?
lowest part of the brainstem; connects with the spinal cord, regulates heartbeat, respiration, swallowing, coughing, and blood pressure
What is the medulla oblongata?
a nerve cell
What is a neuron?
responsible for many reflex actions and for carrying sensory messages up to the brain and motor messages that go from the brain to the muscles and glands
What is the spinal cord?
a combination of many nerve fibers located outside the brain and spinal cord
What are nerves?
fills the ventricles, usually is a shock absorber for the brain and spinal cord, also carries nutrients to the brain and spinal cord
three membranes that cover and protect the brain and spinal cord
What are the meninges?
calms the body by reversing the actions of the sympathetic nervous system by slowing heart rate, respiration, and blood pressure
What is parasympathetic?
a division of the autonomic nervous system, prepares the body by increasing heart rate, respiration, and blood pressure
What is sympathetic?
responsible for many reflex actions and for carrying sensory messages up to the brain and motor messages that go from the brain to the muscles and glands
What is the spinal cord?