Human Physiology
Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 8, Problem 35RA
Summary Introduction

To review:

The length of the sensory and motor axons, in centimeters and meters.

Introduction:

The neurons or nerve cells are the constituting as well as working units of the brain. Itis composed of three parts, namely the axons, dendrites and the cell body. It has a long threadlike part that conducts impulse from the cell body to other cells. An axon functions to transmit information in different neurons, glands and muscles.

Blurred answer
Students have asked these similar questions
In the knee jerk, contraction of quadriceps is accompanied by relaxation of the opposing flexor muscles. The contraction of quadriceps is mediated by a monosynaptic reflex (as stated above), and the relaxation of the antagonists is due to a dual connection reflex. The relaxation of antagonists is mediated by an inhibitory transmitter released by interneurones - these are called the la inhibitory interneurones, How do we name a dual connection reflex? monosynaptic disynaptic tricynaptic polysaccharide
In the rare neuromuscular disorder Myasthenia Gravis, autoantibodies are produced which inhibit acetylcholine receptor (nicotinic receptor) activity. Explain how inhibition of acetylcholine receptor activity at the neuromuscular junction will affect the sequence of events in muscular excitation and contraction in response to stimuli, and muscle function? (Mention the effects on all the significant events involved in excitation and contraction of muscles, and how it would affect muscle function).
A nerve conduction velocity test measures nerve conduction velocity. In this test, an electrical stimulus is applied to a peripheral nerve and the length of time it takes for the corresponding muscle to contract is measured. Because the length of the nerve from stimulus point to muscle and the time it takes for the muscle to contract are both known, NCV can be calculated. This test result is helpful in distinguishing between different types of pathologies. For example, a patient with muscle weakness is being tested by a physician. There are three possible sources of the weakness: Disease of the muscle itself such as muscular dystrophy. In this condition, normal muscle tissue is replaced by adipose tissue and the muscle becomes incapable of contraction. Disease at the neuromuscular junction (NMJ) such as myasthenia gravis. This condition is described in the Skeletal Muscle Histology exercise and results from damage to the acetylcholine receptors on the muscle end plate. Disease…

Chapter 8 Solutions

Human Physiology

Knowledge Booster
Background pattern image
Biology
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
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Text book image
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
GCSE PE - ANTAGONISTIC MUSCLE ACTION - Anatomy and Physiology (Skeletal and Muscular System - 1.5); Author: igpe_complete;https://www.youtube.com/watch?v=6hm_9jQRoO4;License: Standard Youtube License