Q&A Hero

Biology & Life Science

Q: Refer to the figure below, and then answer the question that follows. The missing label indicated by a "2" corresponds to the:A) malleus.B) oval window.C) cochlea.D) tympanic membrane.
Q: Refer to the figure below, and then answer the question that follows. The part of the brain indicated by a "1" corresponds to the:A) thalamus.B) hypothalamus.C) medulla oblongata.D) cerebellum.
Q: Humans have sophisticated, highly evolved brains that would be useful in directing all body activities. Yet we have the autonomic division and reflexes that intentionally bypass the conscious centers of the brain and directly handle some responses. Evaluate why this is useful. Also, propose situations to the contrary in which it might be useful to use the brain rather than an autonomic response, and explain why we respond as such anyway.
Q: Imagine a person's spinal cord has been severed high enough that they feel nothing from their legs. Do the sensory neurons in their legs stop functioning? Explain your answer.
Q: Novocain, or procaine, is a chemical that dentists use to numb your mouth before drilling. The chemical blocks the sodium gates on sensory neurons, preventing them from opening. Describe how this chemical decreases (One hopes!) the perception of pain.
Q: In which layer of cells in the eye is light converted into an electrical signal?
Q: In which part of the inner ear are vibrations converted into action potentials?
Q: Why are sensory receptors often called transducers?
Q: Which part of the brain is probably most involved with dreaming?
Q: A person is diagnosed with a brain tumor that is treated with radiation. The treatment is successful, but the doctor believes some brain damage occurred. The patient is constantly complaining of being thirsty, even though she has had plenty of water to drink. Which part of the brain is damaged in this patient and why?
Q: Which division of the autonomic nervous system stimulates digestion?
Q: Motor neurons, which tell muscles to move, leave the spinal cord through the ________.
Q: Match the following.A) the "bridge" to the cerebrumB) motor control and balanceC) regulates breathing and blood pressureD) regulation of drivesE) reasoning and memoryCerebrum
Q: Match the following.A) the "bridge" to the cerebrumB) motor control and balanceC) regulates breathing and blood pressureD) regulation of drivesE) reasoning and memoryMedulla oblongata
Q: Match the following.A) the "bridge" to the cerebrumB) motor control and balanceC) regulates breathing and blood pressureD) regulation of drivesE) reasoning and memoryCerebellum
Q: Match the following.A) the "bridge" to the cerebrumB) motor control and balanceC) regulates breathing and blood pressureD) regulation of drivesE) reasoning and memoryPons
Q: Match the following.A) the "bridge" to the cerebrumB) motor control and balanceC) regulates breathing and blood pressureD) regulation of drivesE) reasoning and memoryHypothalamus
Q: Match the following. Answers may be used more than once.A) somatic divisionB) sympathetic divisionC) parasympathetic divisionAccelerates heart
Q: Match the following. Answers may be used more than once.A) somatic divisionB) sympathetic divisionC) parasympathetic divisionStimulates salivation
Q: Match the following. Answers may be used more than once.A) somatic divisionB) sympathetic divisionC) parasympathetic divisionStimulates skeletal muscles
Q: Match the following. Answers may be used more than once.A) somatic divisionB) sympathetic divisionC) parasympathetic divisionConstricts pupils
Q: Match the following. Answers may be used more than once.A) somatic divisionB) sympathetic divisionC) parasympathetic divisionInhibits digestion
Q: Match the following.A) bundle of axonsB) carries signals away from the CNSC) glial membrane wrappingD) carries signals to the CNSE) mostly neuron cell bodiesMyelin
Q: Match the following.A) bundle of axonsB) carries signals away from the CNSC) glial membrane wrappingD) carries signals to the CNSE) mostly neuron cell bodiesEfferent neuron
Q: Match the following.A) bundle of axonsB) carries signals away from the CNSC) glial membrane wrappingD) carries signals to the CNSE) mostly neuron cell bodiesAfferent neuron
Q: Match the following.A) bundle of axonsB) carries signals away from the CNSC) glial membrane wrappingD) carries signals to the CNSE) mostly neuron cell bodiesGray matter
Q: Match the following.A) bundle of axonsB) carries signals away from the CNSC) glial membrane wrappingD) carries signals to the CNSE) mostly neuron cell bodiesNerve
Q: Our visual system creates images as well as perceiving them.
Q: The cilia that respond to sounds in the cochlea have "trapdoor" channels for K+ ions.
Q: Different parts of the tongue are responsive to different tastes.
Q: If the left side of the body is paralyzed by a stroke or other brain injury, the damage occurred on the left side of the brain.
Q: The human body has more sensory input to the CNS than the traditional "five senses."
Q: Damage to the medulla oblongata in the brain could interfere with breathing.
Q: The parasympathetic division of the autonomic nervous system would be key in preserving an individual who is escaping from a dangerous situation.
Q: The action potential moves across the synaptic cleft as an electrical signal.
Q: When a neuron is resting, it has a higher concentration of Na+ions inside the cell membrane than outside.
Q: The neuron being stimulated by a neurotransmitter comes after the synaptic cleft.
Q: A nerve is larger than a neuron.
Q: Refer to the figure below, and then answer the following question(s).The missing label indicated with a "2" corresponds to which tissue type?A) epithelialB) connectiveC) muscleD) nervous
Q: Refer to the figure below, and then answer the following question(s).The missing label indicated with a "1" corresponds to which tissue type?A) epithelialB) connectiveC) muscleD) nervous
Q: A biology classmate seems confused by something he read at the professor's website about calcium imbalances and neurotoxins interfering with proper functioning of the muscular systemeven to the point of causing death by suffocation. He states the professor probably goofed up and meant the skeletal, nervous, and respiratory systems were adversely affected. Defend your professor's statements.
Q: What is the evolutionary significance of tissues, organs, and organ systems in animals?
Q: An auto mechanic friend expresses interest in changing his career to nursing. He sees that anatomy and physiology is one of the courses he needs to take. He asks you what such a course would be like. You decide to explain it to him by comparing the human body to a car. How would you explain the course to him?
Q: An older friend of yours who has been a dedicated jogger for many years has been having mild knee pain recently when jogging longer distances. He tells you his doctor recommended better-cushioned running shoes. He wonders why better shoes on his feet will help his knees. Using the material you learned about the skeletal system, what can you say to help your friend understand his doctor's recommendation?
Q: A 25-year-old friend tells you her mom was diagnosed with advanced osteoporosis. Your friend seems dispirited, feeling resigned to the same fate. Using the material you learned about the skeletal system, what supportive advice can you give your friend for ways she can guard against her risk of osteoporosis?
Q: The two organ systems that are involved in removing wastes from the cells and eliminating them from the body are the ________ system and ________ system.
Q: The endocrine system sends signals using chemical messengers called ________.
Q: Bone and cartilage are examples of ________ tissues.
Q: Glands are part of the ________ tissue category.
Q: The brain is in the ________ cavity, which is part of the larger ________ cavity.
Q: In the most general terms, studying the structure of the passages that air takes into the lungs would be considered ________; studying the mechanism for how gases are exchanged between the lungs and the blood would be ________.
Q: Match the following.A) joints and cartilageB) hair, nails, and some glandsC) water conservation and waste processingD) communication using hormones E) larynx, trachea, and bronchiF) Connective tissue Integumentary system
Q: Match the following.A) joints and cartilageB) hair, nails, and some glandsC) water conservation and waste processingD) communication using hormones E) larynx, trachea, and bronchiF) Connective tissue Skeletal system
Q: Match the following.A) joints and cartilageB) hair, nails, and some glandsC) water conservation and waste processingD) communication using hormones E) larynx, trachea, and bronchiF) Connective tissue Respiratory system
Q: Match the following.A) joints and cartilageB) hair, nails, and some glandsC) water conservation and waste processingD) communication using hormones E) larynx, trachea, and bronchiF) Connective tissue Endocrine system
Q: Match the following.A) joints and cartilageB) hair, nails, and some glandsC) water conservation and waste processingD) communication using hormones E) larynx, trachea, and bronchiF) Connective tissue Urinary system
Q: Match the following.A) joints and cartilageB) hair, nails, and some glandsC) water conservation and waste processingD) communication using hormones E) larynx, trachea, and bronchiF) Connective tissue Bone and cartilage
Q: Match the following.A) Connective tissueB) Muscle TissueC) Nervous tissueD) Epithelial tissueCovers surfaces and forms linings
Q: Match the following.A) Connective tissueB) Muscle TissueC) Nervous tissueD) Epithelial tissueIncludes glial cells
Q: Match the following.A) Connective tissueB) Muscle TissueC) Nervous tissueD) Epithelial tissue"Smooth" is one type
Q: Match the following.A) Connective tissueB) Muscle TissueC) Nervous tissueD) Epithelial tissueMay have "ground substance"
Q: A sweat gland is a type of exocrine gland.
Q: Keratin in the skin is produced mainly by the cells in the epidermis.
Q: The dermis is mostly made up of connective tissue.
Q: Subcutaneous fat tissue in humans is located mainly in the dermis.
Q: Smooth muscle may be moved by either voluntary or involuntary control depending on location in the body.
Q: Because they form linings or coverings, epithelial tissues always face an open area or an exterior environment.
Q: In the levels of organization, the tissue level is between the cellular and organ levels.
Q: The abdominopelvic cavity is part of the larger ventral body cavity.
Q: Homeostasis is maintained mostly by positive feedback.
Q: The heart is in the thoracic cavity.
Q: The brain is responsible for essentially all homeostasis.
Q: Which part of the muscle cell actually does the work of contraction by attaching, pivoting, and pulling? A) myosin heads B) actin filaments C) calcium ions D) neurotransmitter molecules
Q: The protein actin is found in the: A) nucleus. B) thick filaments. C) thin filaments. D) membrane.
Q: In a muscle cell, sarcomeres are the: A) myofibrils that run the length of the cell. B) fundamental units of muscle contraction. C) thin filaments. D) thick filaments.
Q: The two main divisions of the skeletal system are: A) cranial and axial. B) appendicular and cranial. C) axial and articular. D) appendicular and axial. E) vertebral and appendicular.
Q: Blood vessels and nerves are found in which part of compact bone? A) only in the marrow cavity B) only on the outside surface C) in central canals D) in osteoblasts
Q: Which of the following best describes "spongy bone"? A) soft bone tissue B) very similar to compact bone but more flexible C) bone tissue found only in the skull D) contains blood-cell-producing red marrow
Q: Which of the following is part of the axial skeleton? A) thoracic cage bones such as the ribs B) pelvic girdle bones such as the os coxa C) arm bones such as the humerus D) leg bones such as the femur
Q: Which of the following typically connects a bone to another bone? A) cartilage B) ligaments C) tendons D) marrow
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