Concept explainers
To discuss:
Between the muscle in your index finger and the back muscle, the one which has a greater ratio of motor nerve axons per muscle fibers
Introduction:
The motor neurons in the human body are involved in the conduction of impulses from the central nervous system to the respective muscle, organ, or gland. These are characterized by short dendrites and long axons. The nerve conduction ultimately results in the recruitment of the fibers and the production of force to facilitate the respective movement or responses to the stimuli. The force output can be described as a function of the product of the effective cross-sectional area of muscle fibers active in the parallel with specific force output of the fiber type in per unit area.
Want to see the full answer?
Check out a sample textbook solutionChapter 19 Solutions
Inquiry into Life
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & 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 & CompanyLaboratory 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