Sophia - Human Biology - Unit 3 Milestone 3 Questions/Answers

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1 This ear disorder, which produces inflammation in the inner ear, is commonly referred to as an ear infection. • Vertigo • Otis media • Motion sickness • Tinnitus CONCEPT Disor... ders of the Ear 2 What condition, also known as "pink eye," occurs when the the clear membrane of the eye becomes inflamed? • Cataracts • Conjunctivitis • Glaucoma • Astigmatism CONCEPT Disorders of the Eye 3 Which of these is true of referred pain? • The pain is the result of the amputation of a body part. • The pain signals are sent to the pons. • The pain's source cannot be detected by the brain. • The skin can cause this type of pain. CONCEPT Somatic Sense 4 Dan is dehydrated. Which type of receptor alerts his brain of this? • Osmoreceptor • Thermoreceptor • Chemoreceptor • Mechanoreceptor CONCEPT Sensory Receptors 5 What parts of the mouth contain taste receptors? • Tongue and roof of the mouth • Tongue and throat • Throat and roof of the mouth • Tongue, throat and roof of the mouth CONCEPT Smell & Taste 6 Select the FALSE statement about stem cells. • They are unspecialized cells found in undeveloped embryos and adult bodies. • They are specialized cells found in the central and peripheral nervous systems. • Scientists manipulate these cells to produce new types of cells. • Scientists are researching ways that these cells can repair damaged parts of the nervous system. CONCEPT Stem Cells 7 How are signals transmitted using neurotransmitters? • From the synapse to the presynaptic cell, and then to the postsynaptic cell • From the postsynaptic cell to the presynaptic cell across a synapse • From the presynaptic cell to the postsynaptic cell across a synapse • From the presynaptic cell to the postsynaptic cell, and then to a synapse CONCEPT Neurotransmitters 8 Which of the following statements is true? • The tectorial membrane is a structure in the cochlea that hair cells interact with to produce action potentials. • Sound is mechanical energy that travels in the form of subatomic particles. • The otolith organ carries signals from the inner ear to the brain. • Sound coming into the ear first encounters the cochlea. CONCEPT Ear Anatomy and Hearing 9 Which developmental disorder of the brain hinders thinking, language and social skills? • Schizophrenia • Autism • Paralysis • Seizure CONCEPT Nervous System Health and Disorders 10 Which of these is TRUE of a neuron at resting potential? • The neuron has more potassium ions inside than outside. • Sodium-potassium pumps transport sodium ions into the neuron. • Sodium-potassium pumps transport potassium ions out of the neuron. • The neuron has more positive charges inside than outside. CONCEPT Membrane Potential and Action Potential 11 What is the cerebral spinal fluid's primary role? • Washing the brain of metabolic waste • Connecting the brain to the skull • Keeping an adequate amount of blood flowing into the brain • Preventing viruses, toxins and bacteria from entering the brain's blood supply CONCEPT The Brain 12 Which of these is determined by the reticular formation? • Hunger and thirst • Memory • Emotions • Consciousness CONCEPT Forebrain and Its Cerebrum 13 Which division of the peripheral nervous system carries signals to the internal organs? • Parasympathetic • Somatic • Sympathetic • Autonomic CONCEPT Central And Peripheral Nervous System 14 Which of the following is a part of the brainstem? • Frontal lobe • Dura mater • Pons • Corpus callosum CONCEPT Hindbrain and Midbrain 15 Which part of the eye does light enter through? • Iris • Fovea • Retina • Pupil CONCEPT Vision 16 What are glial cells? • A bundle of neuron axons • Cells found only in the central nervous system • A group or mass of neuron cells • Cells that nourish and support neurons CONCEPT Nerves as Information Pathways 17 Which of the following statements is true? • The axon fulfills a structural purpose and does not carry any signals. • The axon carries signals to and from the cell body. • The axon conducts signals toward the cell body. • The axon conducts signals away from the cell body. CONCEPT Neurons [Show More]

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