Part 2: Matching (30 marks) Record your answers for this section onto the Google Form. Match each item to the correct statement below. 51.way in which the body works to reverse a change and bring about normalcy 52.way in which the body works to increase changes 53.division of the peripheral nervous system that controls involuntary secretions and smooth muscles 54. system that rids the body of waste and regulates content of blood 55.division of the autonomic nervous system typically activated in stress-related situations 56.division of the autonomic nervous system typically activated when the body is at rest 57. system which allows the body to respond to external and internal stimuli 58.division of the peripheral nervous system that controls voluntary movement 59. system which secretes chemicals that serve as messengers between cells 60.the tendency of the body to maintain a constant internal environment a. homeostasis b. somatic system c. nervous system d. sympathetic nervous system e. endocrine system f. negative feedback system g. excretory system h. autonomic system i. positive feedback system j. parasympathetic nervous system Match each item to the correct statement below. 61. a form of potential energy across a cell membrane 62. basic structural and functional unit of the nervous system 63. connection of neurons that results in an action in response to a stimulus 64. network of nerves that carry sensory messages to the central nervous system 65. the movement of an electrical impulse along the membrane of an axon 66. the process of generating a resting membrane potential of -70 mV. 67.system involving a carrier protein that uses ATP to transport sodium ions out and potassium ions into cells 68. fatty insulating layer around the axons of some nerve cells 69. network of nerves that includes the brain and spinal cord 70. cells that nourish neurons, remove their wastes, and defend against infection a. central nervous system b. resting membrane potential c. neurons d. sodium-potassium pump e. peripheral nervous system f. glial cells g. polarization h. myelin sheath i. reflex arc j. action potential Match each item to the correct statement below. 71.three layers of tough elastic tissue within the skull and spinal column directly enclosing the brain and spinal cord 72. liquid circulating throughout the spaces within the brain and spinal cord 73. occurs when the membrane potential is reduced to less than -70 mV 74. chemical messengers that carry signal from one neuron to another 75.a bundle of white matter linking the cerebral hemispheres 76.occurs when the membrane potential becomes slightly more negative than its original resting potential 77. the connection between two neurons 78. the occurrence when a stimulus causes the axon membrane to depolarize to a certain level 79.thin outer covering of grey matter covering each cerebral hemisphere of the brain 80. protective barrier separating the blood from the CNS a. neurotransmitter b. synapse c. meninges d. blood-brain barrier e. corpus callosum f. cerebrospinal fluid g. threshold potential h. depolarization i. cerebral cortex j. hyperpolarization
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Homeostasis: The tendency of the body to maintain a constant internal environment. So, the match is **60. homeostasis**. Show more…
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70. The structure of the CNS that serves to regulate heart rate and breathing rate is the: a) Cerebellum b) Pituitary gland c) Spinal cord d) medulla oblongata 71. In Deuterostomes, nutrient molecules are taken into the circulatory system of the small intestine by way of: a) Bones b) kidney tubules c) Alveolus d) Capillaries e) Veins. 72. The properties of the plasma membrane that are specialized in nerve cells include: a) Separation of the fluid environments inside and outside the cell. b) Regulation of molecules and ions that pass into and out of the cell. c) electrical impulses and chemical communication between different cells, d) Maintaining unequal Na+ and K+ concentrations on the two sides of the membrane, e) All of these are true 73. Olfaction (sense of smell) and taste are senses based on the detection of: a) chemicals b) light c) sound d) pressure e) movement 74. In humans, Cardiac muscle (the pacemaker center in the right atrium) is inhibited by ____ nerves: a) Adipose cells b) frontal lobe c) sympathetic d) parasympathetic 75. The evolution/development of the liver and kidney is most closely related to specialization of stem cells from the a) ectoderm b) the endodermal c) neurocytes d) original mesoderm e) all of these . 76. In vertebrates, large macromolecules are hydrolyzed to form monomers which can be used by all cells of the organism. The entire process involves which of the following: a) hydrolysis of molecules by enzymes b) active transport of monomers across cell membranes c) absorption of monomers into the capillaries d)"a", "b" and "c" are true e) none are true. 77. The part of neurons that collect information and bring it to the cell body are: a) electrons b) dendrites (receptors) c) axons d) terminal filaments e) synaptic vesicles 78. Which of the following glands would have the wide-reaching effect on integrating functions to insure homeostasis in an adult human by releasing molecules into the circulatory system? a) adrenal glands b) pituitary gland c) thyroid gland d) gonads e) all are true
Marlyn J.
Which is NOT a correct association of structure and function? - axons—outgoing signals - sensory neuron—controls sensory organs such as eyes - cell body—nucleus and organelles - dendrites—incoming signals - interneuron—sums up input before sending signals to muscle or gland QUESTION 42 You burn your finger and pull your hand away without thinking. The pathway of the nerve response is: - sensory neuron to spinal cord to motor neuron. - axon to dendrite to motor neuron to brain to sensory neuron. - sensory neuron to spinal cord to brain to spinal cord to motor neuron. - motor neuron to motor neuron. - motor neuron to sensory neuron to brain to interneuron. QUESTION 43 Which is NOT a correct association of brain structures and functions? - midbrain—reflex centers for visual, auditory, and tactile responses - cerebellum—coordinates smooth and coordinated motions - cerebrum—higher thought processes including learning, memory, and speech - pons—regulates breathing rate - thalamus—regulates heartbeat and blood pressure QUESTION 44 It is impossible to get lung cancer unless you smoke cigarettes. - True - False QUESTION 45 All arteries contain oxygenated blood, and all veins contain deoxygenated blood. - True - False QUESTION 46 The sinoatrial node controls the heartbeat. - True - False QUESTION 47 Which of the following demonstrates the correct use of a parenthetical in-text citation formatted in APA style? - According to Johnson, fish gills are very efficient at extracting oxygen from water (2010). - Peristalsis allows humans to swallow even if they are upside down (Johnson, Essentials of the Living World). - According to Johnson (2010), there are three types of neurons. - Muscle tissue cells contract when stimulated (Johnson, G., 2010). - Humans smell by using receptor cells located in the lining of the nasal passage (Essentials of the Living World, G. Johnson). - None of the above. QUESTION 48 Which of the following journal articles is documented correctly in APA style? - Madison, Portia Lee. "How exams affect heart rate." Journal of Cardiac Stress, 26(2), 168-180, 2005. - Madison, P. L. (2005). How exams affect heart rate. Journal of Cardiac Stress, 26(2), 168-180. - Portia Lee Madison (2005). How exams affect heart rate. Journal of Cardiac Stress, 26(2), 168-180. - Journal of Cardiac Stress (2005). How exams affect heart rate. P. L. Madison. - Madison, Portia L. (2005). "How exams affect heart rate." Journal of Cardiac Stress, 26(2), 168-180.
Madhur L.
CNS - Spinal Cord LAB ACTIVITY 9: Neuronal Pathways. Provide the word that best fits each blank. (Word Bank: Contralateral, Corticospinal, Indirect, Medulla oblongata, Primary Motor, Pyramidal, Receptor, Somatosensory, Thalamus, Ventral) Ascending neuronal pathways transmit input from receptors to higher brain centers. These pathways usually consist of three neurons. The first order neuron conducts impulses from the 1) to the central nervous system, where it synapses with the second order neuron. The second order neuron ascends to the 2) , where it synapses with the third order neuron. Third order neuron route impulses to the appropriate area of the 3) cortex. Depending on the pathway, sensory tracts ascend to the cerebral cortex can decussate in the spinal cord or at the level of the medulla oblongata. Tracts that deliver input to the cerebellum lack third order neurons and do not decussate. Descending neuronal pathways transmit motor output from the brain toward peripheral effectors. There are two different types of voluntary descending pathways. The direct pathway, also called the corticospinal pathway, involves only two neurons. The cell body of the upper motor neuron, also called a 4) cell, is located in the 5) cortex. The axon descends within the 6) white matter tract, and synapses with lower motor neuron in the 7) horn of the gray matter. The lower motor neuron extends to peripheral effectors that are under voluntary control, such as skeletal muscles. Axons in the direct motor pathway decussate at the level of the 8) , so the primary motor cortex of each cerebral hemisphere is responsible for fine motor control of the opposite, or 9) side of the body. All other motor pathways, called 10) pathways, consist of more than two neurons and involve input from motor nuclei within the brain. These pathways are responsible for control of posture and coarse movements of the limbs.
Sri K.
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