What Indicators BEST Describe Scapulohumeral Rhythm

question 8

Multiple Choice

What indicators BEST describe scapulohumeral rhythm?

• A)Beyond 10° of glenohumeral abduction and 30° of flexion, for every 3° of movement, 1° of movement occurs at the glenohumeral joint and 2° at the scapulothoracic joint.
• B)As movement begins at the glenohumeral joint, for every 3° of movement, 2° of movement occurs at the glenohumeral joint and 1° at the scapulothoracic joint.
• C)As movement begins at the glenohumeral joint, for every 3° of movement, 1° of movement occurs at the glenohumeral joint and 2° at the scapulothoracic joint.
• D)Beyond 30° of glenohumeral abduction and 60° of flexion, for every 3° of movement, 2° of movement occurs at the glenohumeral joint and 1° at the scapulothoracic joint.

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Definitions:

Cis-trans Isomers

Compounds that have the same molecular formula but differ in the spatial arrangement of certain atoms or groups around a double bond.

Isomeric

Refers to molecules that have the same molecular formula but a different arrangement of atoms in space.

Hybridization

Hybridization is the concept of mixing atomic orbitals to form new hybrid orbitals, which can explain molecule shapes and bonding properties.

Dimethyl Ether

An organic compound and simplest ether, characterized by two methyl groups bonded to an oxygen atom.