The planes in which each movement of glenohumeral joint movements occur, and the axis of rotation for each movement in the plane. Introduction: The shoulder joint is also called a glenohumeral joint. It is structurally classified as a socket joint or synovial joint and functionally classified as a multiaxial joint and diarthrosis. The shoulder joint articulates between the head of the humerus and the glenoid cavity of the scapula.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 5, Problem 1RE

Summary Introduction

To list: The planes in which each movement of glenohumeral joint movements occur, and the axis of rotation for each movement in the plane.

Introduction: The shoulder joint is also called a glenohumeral joint. It is structurally classified as a socket joint or synovial joint and functionally classified as a multiaxial joint and diarthrosis. The shoulder joint articulates between the head of the humerus and the glenoid cavity of the scapula.

Expert Solution & Answer

Explanation of Solution

a. Abduction: Abduction in the shoulder joint is defined as the humerus’ upward lateral movement in the frontal plane. Abduction occurs in the frontal plane about the sagittal axis of rotation.

b. Adduction: Adduction is the downward movement of the humerus in the frontal plane medially toward the body from abduction. Adduction occurs in the frontal plane about the sagittal axis.

c. Flexion: Flexion is the straight anterior movement of the humerus from any point in the sagittal plane. Flexion of the shoulder joint occurs in the sagittal plane of the frontal axis.

d. Extension: Extension is the movement of the humerus straight posteriorly from any point in the sagittal plane. The extension of the shoulder joint occurs in the sagittal plane of the frontal axis.

e. Horizontal adduction: Horizontal adduction is the movement of the humerus in a transverse or horizontal plane toward and across the chest. The plane of motion for horizontal adduction is transverse, and the axis of rotation is vertical.

f. Horizontal abduction: Horizontal abduction is the movement of the humerus in a transverse or horizontal plane away from the chest. The plane of motion for horizontal abduction is transverse, and the axis of rotation is vertical.

g. External rotation: External rotation is the lateral movement of the humerus in the transverse plane around its long axis away from the midline. The plane of motion for external rotation is transverse, and the axis of rotation is vertical.

h. Internal rotation: Internal rotation is the medial movement of the humerus in the transverse plane around its long axis toward the midline. The plane of motion for internal rotation is transverse, and the axis of rotation is vertical.

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

unu grow because auxin is still produced in the tip to Another of Boysen and Jensen's experiments included the use of mica, explain why one of the shoots was able to show phototropism and the other was not. Mica Wafer Ligh c. They then t but this time permeable n shoot. Why phototropis Light Mica Wafer Coleoptile tips Tips removed: agar Explain why the shoo direction after the ag the cut shoot, even t

Discussion entries must be at least 250 words to fulfill the assignment requirements. You must complete your entry before you will be able to see the responses of other students. Responses to other students are encouraged but not required. Grading for discussion entries will be based on application of course concepts, proper grammar, and correct punctuation. Read one the attached article and explore the Human Development Index (https://hdr.undp.org/data-center/human-development-index#/indicies/HDI). In your opinion, is the Human Development Index a good measure of the well- being of the people of a nation? Are the items measured in the HDI valid and relevant in the modern global economy? How are they related to the political economy of a nation? The attached articles propose some alternative measures of well-being. In your opinion, are there other measures of well-being that might be better alternatives to the items in the current HDI?

A patient visits her doctor with symptoms typical of a bladder infection. She is immediately prescribed an 800 mgdose of antibiotic (bioavailability = 1/2, t½ = 12 h). The corresponding plasma concentration of drug is found to be 96 micrograms/ml. What is the volume of distribution of this drug? Please round to the nearest liter.

Answer 2