Principles of Anatomy and Physiology
15th Edition
ISBN: 9781119329398
Author: Gerard J Tortora, Bryan Derrickson
Publisher: John Wiley & Sons Inc
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 12, Problem 1CP
What is the purpose of a sensory receptor?
Expert Solution & Answer
Summary Introduction
To review:
The purpose of a sensory receptor.
Introduction:
The sensory receptor is a part of the PNS (peripheral nervous system). These receptors are present at the surface of neurons to sense external as well as internal environmental changes.
Explanation of Solution
The sensory receptor is classified as the component of nervous system, responsible for detecting the changes occurring in the external as well as the internal environment.
The sensory receptors help to monitor the internal stimuli like a decrease in the BP (blood pressure) or the external stimuli such as an insect bite on the skin. Without the sensory receptors, the brain will not get any information about the internal or the external stimuli and the changes, which occur due to the stimuli.
Conclusion
Thus, the purpose of a sensory receptor is to detect the changes that occur in the external and the internal environment of the body and inform the brain about these changes.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Transcription and Translation
1. What is the main function of transcription and translation? (2
marks)
2. How is transcription different in eukaryotic and prokaryotic
cells? (2 marks)
3. Explain the difference between pre-mRNA and post-transcript
mRNA. (2 marks)
4. What is the function of the following: (4 marks)
i. the cap
ii. spliceosome
iii. Poly A tail
iv. termination sequence
5. What are advantages to the wobble feature of the genetic
code? (2 marks)
6. Explain the difference between the: (3 marks)
i. A site & P site
ii. codon & anticodon
iii. gene expression and gene regulation
7. Explain how the stop codon allows for termination. (1 mark)
8. In your own words, summarize the process of translation. (2
marks)
In this activity you will research performance enhancers that affect the
endocrine system or nervous system. You will submit a 1 page paper on one
performance enhancer of your choice. Be sure to include:
the specific reason for use
the alleged results on improving performance
how it works
how it affect homeostasis and improves performance
any side-effects of this substance
Neurons and Reflexes
1. Describe the function of the:
a) dendrite
b) axon
c) cell body
d) myelin sheath
e) nodes of Ranvier
f) Schwann cells
g) motor neuron, interneuron and sensory neuron
2. List some simple reflexes. Explain why babies are born with
simple reflexes. What are they and why are they necessary.
3. Explain why you only feel pain after a few seconds when you
touch something very hot but you have already pulled your
hand away.
4. What part of the brain receives sensory information? What
part of the brain directs you to move your hand away?
5. In your own words describe how the axon fires.
Chapter 12 Solutions
Principles of Anatomy and Physiology
Ch. 12 - l. What is the purpose of a sensory receptor?
Ch. 12 - What are the components and functions of the SNS...Ch. 12 - 3. Which subdivisions of the PNS control voluntary...Ch. 12 - Prob. 4CPCh. 12 - 5. Describe the parts of a neuron and the...Ch. 12 - Give several examples of the structural and...Ch. 12 - 7. What is a neurolemma, and why is it important?
Ch. 12 - 8. With reference to the nervous system, what is a...Ch. 12 - 9. What types of electrical signals occur in...Ch. 12 - 10. Why are voltage-gated channels important?
Ch. 12 - 11. What is the typical resting membrane potential...Ch. 12 - 12. How do leak channels contribute to resting...Ch. 12 - 13. What is a hyperpolarizing graded potential?
Ch. 12 - 14.What is a depolarizing graded potential?
Ch. 12 - What happens during the depolarizing phase of an...Ch. 12 - Prob. 16CPCh. 12 - 17. What effect does miyelination have on the...Ch. 12 - How is neurotransmitter removed from the synaptic...Ch. 12 - Prob. 19CPCh. 12 - Prob. 20CPCh. 12 - Prob. 21CPCh. 12 - Prob. 22CPCh. 12 - What is a neural circuit?Ch. 12 - What are the functions of diverging, converging,...Ch. 12 - What factors contribute to a lack of neurogenesis...Ch. 12 - What is the function of the regeneration tube in...Ch. 12 - The buzzing of the alarm clock woke Carrie. She...Ch. 12 - Prob. 2CTQCh. 12 - As a torture procedure for his enemies, mad...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Mutations Here is your template DNA strand: CTT TTA TAG TAG ATA CCA CAA AGG 1. Write out the complementary mRNA that matches the DNA above. 2. Write the anticodons and the amino acid sequence. 3. Change the nucleotide in position #15 to C. 4. What type of mutation is this? 5. Repeat steps 1 & 2. 6. How has this change affected the amino acid sequence? 7. Now remove nucleotides 13 through 15. 8. Repeat steps 1 & 2. 9. What type of mutation is this? 0. Do all mutations result in a change in the amino acid sequence? 1. Are all mutations considered bad? 2. The above sequence codes for a genetic disorder called cystic fibrosis (CF). 3. When A is changed to G in position #15, the person does not have CF. When T is changed to C in position #14, the person has the disorder. How could this have originated?arrow_forwardhoose a scientist(s) and research their contribution to our derstanding of DNA structure or replication. Write a one page port and include: their research where they studied and the time period in which they worked their experiments and results the contribution to our understanding of DNA cientists Watson & Crickarrow_forwardhoose a scientist(s) and research their contribution to our derstanding of DNA structure or replication. Write a one page port and include: their research where they studied and the time period in which they worked their experiments and results the contribution to our understanding of DNA cientists Watson & Crickarrow_forward
- 7. Aerobic respiration of a protein that breaks down into 12 molecules of malic acid. Assume there is no other carbon source and no acetyl-CoA. NADH FADH2 OP ATP SLP ATP Total ATP Show your work using dimensional analysis here: 3arrow_forwardFor each of the following problems calculate the following: (Week 6-3 Video with 6-1 and 6-2) Consult the total catabolic pathways on the last page as a reference for the following questions. A. How much NADH and FADH2 is produced and fed into the electron transport chain (If any)? B. How much ATP is made from oxidative phosphorylation (OP), if any? Feed the NADH and FADH2 into the electron transport chain: 3ATP/NADH, 2ATP/FADH2 C. How much ATP is made by substrate level phosphorylation (SLP)? D. How much total ATP is made? Add the SLP and OP together. 1. Aerobic respiration using 0.5 mole of glucose? NADH FADH2 OP ATP SLP ATP Total ATP Show your work using dimensional analysis here:arrow_forwardAerobic respiration of one lipid molecule. The lipid is composed of one glycerol molecule connected to two fatty acid tails. One fatty acid is 12 carbons long and the other fatty acid is 18 carbons long in the figure below. Use the information below to determine how much ATP will be produced from the glycerol part of the lipid. Then, in part B, determine how much ATP is produced from the 2 fatty acids of the lipid. Finally put the NADH and ATP yields together from the glycerol and fatty acids (part A and B) to determine your total number of ATP produced per lipid. Assume no other carbon source is available. 18 carbons fatty acids 12 carbons glycerol . Glycerol is broken down to glyceraldehyde 3-phosphate, a glycolysis intermediate via the following pathway shown in the figure below. Notice this process costs one ATP but generates one FADH2. Continue generating ATP with glyceraldehyde-3-phosphate using the standard pathway and aerobic respiration. glycerol glycerol-3- phosphate…arrow_forward
- Don't copy the other answerarrow_forward4. Aerobic respiration of 5 mM acetate solution. Assume no other carbon source and that acetate is equivalent to acetyl-CoA. NADH FADH2 OP ATP SLP ATP Total ATP Show your work using dimensional analysis here: 5. Aerobic respiration of 2 mM alpha-ketoglutaric acid solution. Assume no other carbon source. NADH FADH2 OP ATP Show your work using dimensional analysis here: SLP ATP Total ATParrow_forwardBiology You’re going to analyze 5 ul of your PCR product(out of 50 ul) on the gel. How much of 6X DNAloading buffer (dye) are you going to mix with yourPCR product to make final 1X concentration ofloading buffer in the PCR product-loading buffermixture?arrow_forward
- Write the assignment on the title "GYMNOSPERMS" focus on the explanation of its important families, characters and reproduction.arrow_forwardAwnser these Discussion Questions Answer these discussion questions and submit them as part of your lab report. Part A: The Effect of Temperature on Enzyme Activity Graph the volume of oxygen produced against the temperature of the solution. How is the oxygen production in 30 seconds related to the rate of the reaction? At what temperature is the rate of reaction the highest? Lowest? Explain. Why might the enzyme activity decrease at very high temperatures? Why might a high fever be dangerous to humans? What is the optimal temperature for enzymes in the human body? Part B: The Effect of pH on Enzyme Activity Graph the volume of oxygen produced against the pH of the solution. At what pH is the rate of reaction the highest? Lowest? Explain. Why does changing the pH affect the enzyme activity? Research the enzyme catalase. What is its function in the human body? What is the optimal pH for the following enzymes found in the human body? Explain. (catalase, lipase (in your stomach),…arrow_forwardAnwser these Discussion Questions: Part One Why were the plants kept in the dark prior to the experiment? Why is this important? Why is it important to boil the leaf? Explain why it was necessary to use boiling alcohol? What is the purpose of the iodine? Part Two What was the purpose of keeping the leaf in the dark and then covering it with a cardboard cut-out? What conclusions can you draw from this part of the lab? Part Three 7. In this experiment what was the purpose of adding the soda lime? 8. Why was a sealed bag placed around each plant? 9. What happened in the control plants? 10. What was the result on photosynthesis? Part Four 11. Why was a variegated leaf used in this experiment? !2. What conclusions can you draw about starch production in a variegated leaf?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Principles Of Radiographic Imaging: An Art And A ...Health & NutritionISBN:9781337711067Author:Richard R. Carlton, Arlene M. Adler, Vesna BalacPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Surgical Tech For Surgical Tech Pos CareHealth & NutritionISBN:9781337648868Author:AssociationPublisher:Cengage
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Principles Of Radiographic Imaging: An Art And A ...
Health & Nutrition
ISBN:9781337711067
Author:Richard R. Carlton, Arlene M. Adler, Vesna Balac
Publisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Surgical Tech For Surgical Tech Pos Care
Health & Nutrition
ISBN:9781337648868
Author:Association
Publisher:Cengage
The Sensorimotor System and Human Reflexes; Author: Professor Dave Explains;https://www.youtube.com/watch?v=M0PEXquyhA4;License: Standard youtube license