
Concept explainers
Which of these statements is not true with respect to olfaction?
a. Olfactory sensation is relayed directly to the cerebral cortex withoutpassing through the thalamus.
b.Olfactory neurons are replaced about every 2 months.
c.The olfactory cortex is involved in conscious perception of smell.
d.The secondary areas are responsible for visceral andemotional reactions to odors.
e.The olfactory cortex is in the occipital lobe of the cerebrum.

Introduction:
Olfaction or the sense of smell occurs when the sensory receptor is stimulated in response to the odors. The sensory receptors for the odor are present in the olfactory region which is located at the extreme superior region of the nasal cavity. These olfactory regions are lined with the olfactory epithelium.
Answer to Problem 1RAC
The correct option is e) The olfactory cortex is in the occipital lobe of cerebrum.
Explanation of Solution
Explanation for the correct option:
Option e) The olfactory cortex is in the occipital lobe of the cerebrum. The central olfactory cortex area is located in the temporal and the frontal lobes of the cerebrum and not in the occipital lobe.
Explanation for the incorrect option:
Option a) Olfactory sensation is relayed directly without passing through the thalamus. The olfactory stimuli are processed in the olfactory cortex region of the cerebrum.
Option b) Olfactory neurons are replaced about every two months. The olfactory neurons degenerate and are replaced by the new one in every two months.
Option c) The olfactory cortex is involved in the conscious perception of a smell. The olfactory stimuli perceive the specific odor.
Option d) The secondary olfactory area is responsible for the visceral and emotional reaction to odors. Olfactory stimuli can cause the perception of emotional and autonomic responses. Secondary olfactory areas include the hypothalamus, structure of the limbic system and the hippocampus.
Want to see more full solutions like this?
Chapter 15 Solutions
SEELY'S ANATOMY+PHYS.<LSLEAF W/CONNECT>
- explain the cascade of events (starting with relaxing trade winds) that occurs during El Niño in the eastern Pacific (off the coasts of California/North America and Peru/South America) and which lead to food-chain collapse - start with changes in the physical/oceanographic conditions, andthen systematically describe the cascading effects at each level of the food chain -arrow_forward3) Which statement(s) about the Pacific Decadal Oscillation (PDO) is/are TRUE? CIRCLE ALL THAT APPLY. A. It is a major driver of salmon populations in the Pacific B. It affects sea surface temperatures in the eastern Pacific C. Its cycles typically do not last as long as those of ENSO D. Evidence that it has occurred over many centuries has been gathered from tree ring dataarrow_forward4.arrow_forward
- 2arrow_forward1. 2. 3. Marine fish cells are hypotonic compared to their seawater environment; their cells lose water by osmosis and gain solutes. If you add heterotrophic respiration and autotrophic respiration together and then subtract that value from gross primary productivity, then you have a more refined estimate of ecosystem carbon storage than NEE. Differential heating due to the earth's tilt generates the global wind AND oceanic circulation patternsarrow_forward1arrow_forward
- 4arrow_forwardDoes it show the level of proteins? What about the amount? Levels of protein activation? How can you tell? Does the thickness tell you anything? What about the number of the lines? And the other questionsarrow_forwardKD 200- 116- 66- Vec ATF6 (670) ATF6 (402) ATF6 (373) ATF6 (366) I I 45- 1 2 3 4 5 ATFG (360) (e/c) 9V ATFG (402) g ant- ATF anti-KDEL DAPI barrow_forward
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningComprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage Learning
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning




