Exam Review 1

• Which part of the brain is responsible for coordinating voluntary muscle movements and maintaining balance?

  Cerebellum
• The parasympathetic nervous system is responsible for:

  rest and digest and conserve energy
• What is the main function of the spinal cord in the nervous system?

  send motor commands from brain to body and send sensory info from body to brain, and reflexes
• Which neurotransmitter is associated with mood regulation and pleasure?

  Serotonin
• The sensory receptors for taste are primarily located on the:

  Tongue
• The optic nerve is responsible for transmitting signals from the eye to the:

  Brain
• Which structure in the ear is responsible for maintaining balance and spatial orientation?

  Vestibulocochlearneve
• In which part of the eye does light refraction primarily occur?

  the cornea
• What is the main function of the choroid in the eye?

  provide oxygen and nourishment to the retina
• The phenomenon of adapting to a constant stimulus and becoming less sensitive to it is known as:

  sensory adaptation
• What is the primary function of the nervous system?

  process information received through sensory systems to the body and activate action
• Which part of the neuron receives signals from other neurons?

  Dendrite
• What is the role of the myelin sheath in nerve cells?

  maximize the speed of impulse transmission
• Which division of the nervous system controls involuntary bodily functions like heart rate and digestion?

  Autonomic system and Parasympathetic
• The olfactory nerve is responsible for:

  enabling sense of smell
• Which part of the brain is responsible for emotional responses and the formation of memories?

  amyglada
• The reflex arc involves which sequence of components?

  sensory neuron to interneurons to motor neurons
• What is the function of the meninges in the central nervous system?

  protect the CNS
• The neurotransmitter acetylcholine is commonly associated with the:

  memory and muscle movement
• Which of the following statements about the blood-brain barrier is true?

  The barrier functions to regulate the chemical composition of the extracellular fluid surrounding the brain cells.
• Which part of the eye contains photoreceptor cells responsible for detecting light?

  the retina
• The term "presbyopia" refers to:

  eye is no longer able to focus on things
• What is the function of the iris in the eye?

  regulaltes amount of light that enter the eye
• Which of the following is NOT a function of the cerebrospinal fluid (CSF)?

  initiation and nerve impulse
• The auditory ossicles, consisting of the malleus, incus, and stapes, are located in which part of the ear?

  Middle ear
• Which of the following structures is responsible for converting sound vibrations into electrical signals for the brain to interpret?

  Cochlea
• Which neurotransmitter is associated with muscle contractions at the neuromuscular junction?

  acetylcholine
• What is the role of the thalamus in the brain?

  body's information relay station
• The pineal gland is responsible for the production of:

  Melatonin
• Which part of the nervous system is responsible for the "fight or flight" response?

  Autonomic and sympathetic
• The structure that connects the two hemispheres of the brain is called the:

  corpus callosum
• What is the function of the eustachian tube in the ear?

   equalize pressure in the middle ear cavity w/ external air pressure
• Which cranial nerve is responsible for controlling the muscles of facial expression?

  facial nerve (VII)
• The region of the brain responsible for regulating body temperature and hunger is the:

  hypothalamus
• The phenomenon of summation in neurons involves:

  spatial = simultaneous signal coming from multiple neurons
• Which of the following is a function of the autonomic nervous system?

  maintain homeostasis
• The stretch reflex is an example of a:

  spinal reflex
• The cranial nerve responsible for controlling eye movement and pupil constriction is the:

  Oculomotor nerve (III)
• Which part of the ear is responsible for amplifying sound waves?

  middle ear
• The process by which a neuron returns to its resting state after an action potential is called:

  repolarization