Laboratory Manual for Anatomy and Physiology, 6e WileyPLUS (next generation) + Loose-leaf
Laboratory Manual for Anatomy and Physiology, 6e WileyPLUS (next generation) + Loose-leaf
6th Edition
ISBN: 9781119490906
Author: Connie Allen, Valerie Harper
Publisher: Wiley (WileyPLUS Products)
bartleby

Videos

Question
Book Icon
Chapter 18, Problem 1.1BGL
Summary Introduction

To label: The structures given in Fig 18.1

Concept introduction: Neurons are the fundamental functioning units of the nervous system. Neurons share many similar features with other body cells; only one different feature is that they can conduct signals throughout the body.

Expert Solution
Check Mark

Answer to Problem 1.1BGL

Pictorial representation:

Laboratory Manual for Anatomy and Physiology, 6e WileyPLUS (next generation) + Loose-leaf, Chapter 18, Problem 1.1BGL , additional homework tip  1

Fig 1: Transverse section displaying the coverings of a spinal nerve

Explanation of Solution

The spinal nerves function like “telephone lines” and bring back and forth messages between the body and the spinal cord to regulate motions as well as sensations. There are two roots in each spinal nerve; they are the ventral root and the dorsal root. An axon is a lengthy, slender projection that emerges from a nerve cell. The myelin sheath is formed of a fatty material that surrounds the nerve cells.

The dense and uneven connective tissue that surrounds the peripheral nerves is termed as the epineurium. This tissue envelops several blood vessels that supply blood to the nerves and nerve fascicles. The epineurium is abundantly seen in the regions of joints. Hence, they protect the nerves from injury as well as stretching.

A nerve fascicle is otherwise known as fasciculus. This structure is formed of a bundle of axons. These fascicles are present in the peripheral nervous system. They are bundled together with the blood vessels and fatty tissues.

Nerve fascicles are enveloped by a kind of connective tissue that is termed as the perineurium. The perineurium is formed of perineurial cells, and they are also referred to as myoepithelioid in some cases. The perineurium membrane is a smooth, tube-like transparent structure that could be easily detached from the fibers which it surrounds.

The connective tissue that surrounds the unmyelinated and myelinated axons is called the endoneurium. The endoneurium is otherwise known as the endoneurial channel or Henle’s sheath. It is delicate and surrounds the myelin sheath of every myelinated nerve fiber. The endoneurium is made up of endoneurial cells.

Summary Introduction

To label: The structures given in Fig 18.2

Expert Solution
Check Mark

Answer to Problem 1.1BGL

Pictorial representation:

Laboratory Manual for Anatomy and Physiology, 6e WileyPLUS (next generation) + Loose-leaf, Chapter 18, Problem 1.1BGL , additional homework tip  2

Fig 2: A transverse section photomicrograph through a spinal nerve fascicle

Explanation of Solution

An axon is a long, slim projection that emerges from a neuron. The myelin sac consists of a fat material that surrounds the cells of the nerves. The endoneurium is also known as the Henle’s sheath or endoneurial channel. It is fragile and surrounds every myelinated nerve fiber’s sheath. The endoneurium consists of endoneurial cells.

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
1. In vivo testing provides valuable insight into a drug’s kinetics. Assessing drug kinetics following multiple different routes of administration provides greater insight than just a single route of administration alone. The following data was collected in 250 g rats following bolus iv, oral (po), and intraperitoneal (ip) administration.Using this data and set of graphs, determine: (a) k, C0, V, and AUC* for the bolus iv data  (b) k, ka, B1, and AUC* for the po data  (c) k, ka, B1, and AUC* for the ip data  (d) relative bioavailability for po vs ip, Fpo/Fip  (e) absolute po bioavailability, (f)Fpo absolute ip bioavailability, Fip    MAKE SURE ANSWERS HAVE UNITS if appropriate. SHOW ALL WORK, including equation used, variables used and each step to your solution.
2. Drug quantification from plasma is commonly performed by using techniques such as HPLC or LC/MS. However, these methods do have limitations, and investigators may choose to use a radiolabeled analog of a drug instead. Radioligands are molecules that contain radioactive isotopes, commonly 3H or 14C. This technique allows investigators to quantify drug concentration from radiation measurements. The following measurements were made in 250 g rats following oral administration of 18.2 µCi of a 14C-labeled drug of interest: Time (min) Plasma Radiation Levels (µCi/L) 0 0.0 2 9.7 4 19.2 7 25.3 9 37.8 12 39.6 14 45.8 17 48.8 20 52.0 25 56.4 30 59.2 35 60.1 40 61.1 45 62.1 50 62.8 60 63.1 70 62.1 80 60.1 90 57.3 100 55.5 110 53.7 120 52.2 150 48.0 180 45.0 240 39.0  Note that a µCi is a measure of the amount of radioactivity and hence is a measure of the amount of drug present.  Given that the oral bioavailability of this drug is known to be essentially 100%, estimate the following from this…
The current nutrition labelling regulation in Hong Kong requires food manufacturer to list E+7 information on the package of pre-packaged food products. Do you think that more nutrients, such as calcium and cholesterol, shall be included?

Chapter 18 Solutions

Laboratory Manual for Anatomy and Physiology, 6e WileyPLUS (next generation) + Loose-leaf

Ch. 18 - Prob. 2RSNCh. 18 - _______________ Branch that forms nerves serving...Ch. 18 - _______________ femoral Ch. 18 - _______________ sciatic n. Ch. 18 - Prob. 3MNNPCh. 18 - _______________ ulnar Ch. 18 - _______________ axillary n. Ch. 18 - _______________ tibial n. Ch. 18 - _______________ obturator n. Ch. 18 - _______________ radial n. Ch. 18 - _______________ common fibular n. Ch. 18 - _______________ pudendal n. Ch. 18 - Prob. 1SNCh. 18 - and the __________ Ch. 18 - There are ______ pairs of spinal nerves. Ch. 18 - The nerve that supplies the posterior thigh...Ch. 18 - There is (are) ______ pair(s) of coccygeal...Ch. 18 - If the anterior (ventral) ramus of a spinal nerve...Ch. 18 - Prob. 7SNCh. 18 - The nerve that supplies the anterior thigh is the...Ch. 18 - There is (are) _____ pair(s) of sacral nerves. Ch. 18 - Prob. 10SNCh. 18 - If the posterior (dorsal) ramus of a spinal nerve...Ch. 18 - There is (are) ______ pair(s) of cervical...Ch. 18 - The _____________ nerve supplies the deltoid and...Ch. 18 - The _____________ nerve supplies the triceps...Ch. 18 - The _____________ nerve supplies the biceps...Ch. 18 - The _____________ nerve supplies the diaphragm. Ch. 18 - The _____________ nerve supplies most hand...Ch. 18 - The _____________ nerve supplies the flexor carpi...Ch. 18 - Transverse section of a spinal nerve with...Ch. 18 - Transverse section of a spinal nerve with...Ch. 18 - Transverse section of a spinal nerve with...Ch. 18 - Transverse section of a spinal nerve with...Ch. 18 - Transverse section of a spinal nerve with...Ch. 18 - Transverse section of a spinal nerve with...Ch. 18 - Major nerves from the cervical and brachial...Ch. 18 - Major nerves from the cervical and brachial...Ch. 18 - Major nerves from the cervical and brachial...Ch. 18 - Major nerves from the cervical and brachial...Ch. 18 - Major nerves from the cervical and brachial...Ch. 18 - Major nerves from the cervical and brachial...Ch. 18 - ______________________________________________ Ch. 18 - ____________________________________________ Ch. 18 - ____________________________________________ Ch. 18 - _____________________________________________ Ch. 18 - ...Ch. 18 - ________________________________________________ Ch. 18 - __________ A broken forearm resulted in an...Ch. 18 - __________ An injection into the shoulder results...Ch. 18 - __________ Health care professionals are taught...Ch. 18 - __________ Hitting the medial epicondyle results...Ch. 18 - _______________________ John Jones injured his...Ch. 18 - _______________________ Following the birth of her...Ch. 18 - _______________________ Charles broke his leg...Ch. 18 - __________ Greenstick fracture of the tibia Ch. 18 - __________ Sunburn on the skin over deltoid...Ch. 18 - Prob. 10UYK
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 Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Complications during Labour and Delivery; Author: FirstCry Parenting;https://www.youtube.com/watch?v=QnCviG4GpYg;License: Standard YouTube License, CC-BY