The dorsal column-medial lemniscal pathway crosses to the contralateral side of the CNS in the medulla oblongata and the spinothalamic tract crosses over to the contralateral side in the spinal column. The olfactory epithelium is a small patch of specialized cells found in the superior region of each nasal cavity. What is the tough connective tissue that makes up the "white" of the eye called? Why? Which cutaneous receptors are sensitive to pressure? B lower than nomal. the hyperventilation is described by which of the following statements? A Gas transpot B Buffer pH in blood C Involved in the conversion of CO2 to HCO3 D Regulate osmotic pressure A 120 hours B 4 months C 4 weeks D 72 days T . 70. A. CO 2 produced from the reaction of the acid with bicarbonate stim-ulates central chemoreceptors. They can cause the release of a neurotransmitter. A) ileum. the time delay between that sound reaching the right and left cochlea. B) It contains an abundant bacterial flora. CH 38 Flashcards | Quizlet What is the function of the retinal pigmented epithelium? Which of the following statements regarding the - Course Hero Based on your knowledge of the control of glucose levels in the blood, what would happen if Type I diabetics injected themselves with too much insulin? In mammals, bulk flow only refers to the movement of oxygen (either into or out of the lungs and within the bloodstream). e. They can be amplified. A. they may be caused by rupture of a cerebral aneurysm B. they produce transient demyelination in the CNS C. they usually cause diffuse axonal injury D. they only occur in people with marked hypertension E. they can warn of potential cerebrovascular accidents The false statement about the olfactory receptors is they are bulb-like structures at the tip of the frontal lobe where the olfactory nerves begin. blood would pass through when. They are capable of responding to pressure as well as chemical changes. B. Would you suspect the kidneys to be damaged? Therefore, when light intensity drops at night, we can expect a lit city street scene to be. The fact that Peter Karlson was only able to extract a small amount of ecdysone from over 1000 pounds of moth larvae proved that hormonesunlike other chemical signalsare quickly degraded in the insect body. Decreasing levels of oxygen in the blood are detected by chemoreceptors in the brainstem. Which of the following statements about neurons are NOT true? The lips are the most sensitive to the two-point discrimination threshold because their receptive fields are relatively small. The light-absorbing portion of the photopigment is ________; its sensitivity to a particular wavelength of light is altered by ________. After examining him, the physician explains that his lens or cornea bends the light that enters the eye too much, causing it to focus in front of the retina. What is the site of highest visual acuity? A. Taste hairs have chemoreceptors that cause the taste cells to release neurotransmitters if stimulated. In the visual system, activation of the parasympathetic nervous system causes which of the following? The intensity of stimulus is coded for by the size of the action potential. What are desirable characteristics for a gas exchange surface, such as the endothelial cells lining the inside of lung? Name and explain the first 4 functions of the respiratory system 1) Gas Exchange: O2 lungs tissues; CO2 removal from tissues lungs 2) Speech & Vocalization 3) Olfaction 4) pH balance: a. What transmits sound energy from the outer ear to the middle ear? Disks of a photoreceptor are located in the ________ and contain ________. When fully saturated, myoglobin carries more O2 molecules than hemoglobin. Label each of the following statements as true or false. For those that E. Chemoreceptors - Peripheral - Central - TeachMePhysiology Which of the following statements about homeostasis is false? ASK AN EXPERT. -if you have type AB blood, your plasma contains anti-B antibodies only -if you have type B blood, your plasma contains anti-B antibodies Which of the following lists correctly traces the path of a sound vibration as it moves through the ear? Which of the following hormones requires iodine for its formation? The optic nerve exits the eye at what point? Which of the following is not a cell type found in the retina? In order to focus light coming from a near source onto the retina, the lens adjusts its refractive power through what process? Correct option is B) Carbon monoxide is a poisonous gas which binds to hemoglobin with higher affinity than the oxygen. C) By creating a pressure difference, the atmospheric pressure can push liquid up a straw. a. surrounds a tendon at the point where the tendon crosses a joint b. secretes the lubricating fluid for a synovial joint c. prevents friction between skin and bone, or a muscle tendon and bone d. is the strong band of connective tissue that holds bones together at a synovial joint. Auditory information is transmitted through the medial geniculate nucleus in the thalamus to the cortex. Which of the following arranges the components of the neural pathway for vision in the correct order, starting with the photoreceptor and ending with the visual cortex? Fungi can produce antibiotics. Along a large portion of the retina, light must pass through two layers of cells before reaching a photoreceptor. The stimuli for increased ventilation at the start of exercise are decreased PO2and increased PCO2. What advantage does such compartmentalization offer a large cell? Imagine you are out camping. A chemoreceptor, also known as chemosensor, is a specialized sensory receptor which transduces a chemical substance (endogenous or induced) to generate a biological signal. c. b. An increase in blood glucose levels will lead to which of the following? How is synaptic signaling different from paracrine signaling? 2 pts True False It is a polysynaptic reflex. B) Low arterial pH is the most powerful stimulator of respiration. Which of the following describes the correct path of air through the human respiratory system? Which of the following statements about chemoreceptors in the human body is true ? Which of the following statements is false with regard to the olfactory epithelium and the cell types found there? Which of the following statements about chemoreceptors in the human body is true? Which statement about taste receptors is NOT true? Which of the following statements . When we enter a dark room, the retinal and opsin molecules within the ________ must first ________ before low light levels can be detected. The most important factor in the control of breathing is the amount of oxygen in the blood. The same hormone stimulates gene expression in one cell, but inhibits gene expression in another cell. (a) J. J. Thomson proposed that the nucleus of an atom contains only nucleons. Since chemoreceptors are found in arthropods, crustaceans, vertebrates and all other animals it is believed that chemoreception is the most primitive sense. What is another name for a receptor potential produced at sensory receptors? A Pacinian corpuscle belongs to which class of receptors? Solved QUESTION 10 Which of the following statements about - Chegg A man has just learned that he has a blockage in one of his arteries. Depth perception requires visual input from both eyes. _____, which is released from _____, acts on the ovaries and testes. : The drug is likely to have higher safety. the fluid in the eye between the cornea and the lens. Diffusion is an effective way to exchange gases over short distances, but not over large distances. What is the BMI of an individual who is 5 feet 1 inch tall and weighs 127 pounds? For example, listening to loud music (especially through headphones), or working in very noisy conditions, may increase presbycusis. Air flowing through the air channels in the lungs moves in a tidal fashion. Pharmacology (Shandong University)1461606169 MOOC100 A researcher has sectioned a mouse embryo, and has noticed that certain muscle components (especially myosin) aggregate around the early-stage cartilage of the ribs. Select and record the correct responses to complete the following statements. The digestive organ primarily responsible for the absorption of water is the. What is the stimulus type to which a receptor responds the greatest called? Since they associate with the ribs, these muscles are likely developing intercostal muscles. A blockage in a coronary artery can cause a myocardial infarction. The first neurons capable of generating action potentials in the transmission pathway for visual information detected by rods and cones are the ________ cells. She is planning to join a gym and use only the weight machines. Which of the following statements about insect respiration is false? PDF Cardiovascular System 13 Complete The Following Statements Lateral inhibition results in a stronger signal coming from second-order neurons associated with the central point of stimulation. B. Veins contain valves and arteries do not. wearing convex lenses to refocus the image on the retina. Further Explanation: Receptors are the protein molecules present on the cell surface which binds to the ligand and cause response in the immune system. d. They can spread over long distances. The ______________________ is an organ located in the inner ear and is responsible for maintaining general equilibrium. In which structure(s) is rhodopsin found? Cause is still unknown Most frequent cause of death of infants between 1 months to 2 years of age. c. Photoreceptors respond to light stimuli. Solved Which of the following statements is false? Group of | Chegg.com There will be a net movement of oxygen from outside the cell to inside the cell. - Chemoreceptors are concentrated on the auricles of the head in planaria. Which of the following BEST describes the response of thermoreceptor afferents when temperature decreases from 35C to 25C? Therefore, it is neutral. Oxytocin causes the uterus to contract, whereas cholecystokinin has no effect. b) All of these answers are correct c) Muscle chemoreceptors send information to the central nervous system via group I and II fibers. The pO2 of the blood is lower than the pO2 of the water. The following are components of the membrane attack complex (MAC) except: A. C2 B. C9 C. C5b D. C7 E. C6 71. Which of the following best describes sensory transduction? What is a region of skin that, when activated, will result in the change of activity within a particular afferent neuron? Television personalities sentenced to years in federal prison for fraud B) The atmosphere has a pressure as the components of air collide with surfaces. A researcher is studying a strain of mice that only incorporate 50 percent of the necessary iron into their hemoglobin molecules. Which of the following is the correct order of communication of visual information in the retina? The uterus has receptors for oxytocin, but not for cholecystokinin. The volume of blood flow in the arteries and arterioles is greater than the volume of blood flow through the capillaries. Higher brain centers are responsible for developing a general pattern of movement; the specific details of this movement are refined via a process known as ______. A. controls the shape of the lens to maintain a clear image of focus at various distances. Growth factors are examples of which type of chemical signal? The increase in ventilation during exercise is due to a decrease in arterial PO2.e. What is the hole through which light can enter the eye called? Photoreceptors transmit information directly to ________ cells via the release of a neurotransmitter, causing those cells to develop a(n) ________ potential proportional to the intensity of the stimulus. The sound waves are then transmitted along the ________ to the cochlea. An organ located in the control of breathing is the stimulus type to which class receptors. Examples of which type of chemical signal oxygen from outside the cell to inside the cell to the... 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