Concept explainers
Videos
Introduction :
The most plentiful type of nerve terminations is free nerve endings. They lie close to blood vessels between skin epithelial layers, connective tissues, and cornea and food tract. They are located in joints between the fibrous layers and synovial, and within the same fibrous layer.
Answer to Problem 23A
Correct answer :
The correct answer is option (C) touch.
Explanation of Solution
Explanation/justification for the correct answer :
Option (C) touch. Temperature, mechanical stimulation (touch, strain, stretch), or danger (nociception) can be sensed by free nerve endings. Various free nerve endings thus act as cutaneous mechanoreceptors, nociceptors, thermoreceptors.Free nerve endings are most commonly located in the skin. They reach the dermis and end in the granulosum stratum. They infiltrate dermis middle layers and surround hair follicles. So, this is the correct answer.
Explanation for incorrect answer :
Option (A) taste. Taste bud representing the ends of the sensory nerves. In the anterior two-thirds of the tongue, the taste buds are inherited by the chorda tympani and in the posterior end, there is a lingual branch of the glossopharyngeal nerve. Free nerve endings are produced in the skin by branching out of the sensory fibers. So, this is an incorrect answer.
Option (B) hearing. The vestibulocochlear nerve is responsible for hearing. It is also known as the cranial nerve eight (CN VIII) and is composed of the vestibular and cochlear nerves. So, this is an incorrect answer.
Option (D) sight. The optic nerve is responsible for sight. So, this is an incorrect answer.
Chapter 33 Solutions
Biology Illinois Edition (Glencoe Science)
Additional Science Textbook Solutions
Biology: Life on Earth (11th Edition)
Applications and Investigations in Earth Science (9th Edition)
Campbell Biology (11th Edition)
Anatomy & Physiology (6th Edition)
Microbiology: An Introduction
Genetic Analysis: An Integrated Approach (3rd Edition)
- There is a species of eagle, which lives in a tropical forest in Brazil. The alula pattern of its wings is determined by a single autosomal gene with four alleles that exhibit an unknown hierarchy of dominance. Genetic testing shows that individuals 1-1, 11-4, 11-7, III-1, and III-4 are each homozygous. How many possible genotypes among checkered eagles in the population?arrow_forwardwhat is this called?arrow_forwardcan you help me identify this it's based on onion rootarrow_forward
- Which evidence-based stress management techniques are most effective in reducing chronic stress and supporting college students’ academic success?arrow_forwardstudents in a science class investiged the conditions under which corn seeds would germinate most successfully. BAsed on the results which of these factors appears most important for successful corn seed germination.arrow_forwardI want to write the given physician orders in the kardex formarrow_forward
- Amino Acid Coclow TABle 3' Gly Phe Leu (G) (F) (L) 3- Val (V) Arg (R) Ser (S) Ala (A) Lys (K) CAG G Glu Asp (E) (D) Ser (S) CCCAGUCAGUCAGUCAG 0204 C U A G C Asn (N) G 4 A AGU C GU (5) AC C UGA A G5 C CUGACUGACUGACUGAC Thr (T) Met (M) lle £€ (1) U 4 G Tyr Σε (Y) U Cys (C) C A G Trp (W) 3' U C A Leu בוט His Pro (P) ££ (H) Gin (Q) Arg 흐름 (R) (L) Start Stop 8. Transcription and Translation Practice: (Video 10-1 and 10-2) A. Below is the sense strand of a DNA gene. Using the sense strand, create the antisense DNA strand and label the 5' and 3' ends. B. Use the antisense strand that you create in part A as a template to create the mRNA transcript of the gene and label the 5' and 3' ends. C. Translate the mRNA you produced in part B into the polypeptide sequence making sure to follow all the rules of translation. 5'-AGCATGACTAATAGTTGTTGAGCTGTC-3' (sense strand) 4arrow_forwardWhat is the structure and function of Eukaryotic cells, including their organelles? How are Eukaryotic cells different than Prokaryotic cells, in terms of evolution which form of the cell might have came first? How do Eukaryotic cells become malignant (cancerous)?arrow_forwardWhat are the roles of DNA and proteins inside of the cell? What are the building blocks or molecular components of the DNA and proteins? How are proteins produced within the cell? What connection is there between DNA, proteins, and the cell cycle? What is the relationship between DNA, proteins, and Cancer?arrow_forward
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education