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SPHE 421 WEEK 3 QUIZ – UPPER EXTREMITY | QUESTIONS AND ANSWERS | 2026 UPDATED | SCORE A+ | WITH COMPLETE SOLUTIONS.

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SPHE 421 WEEK 3 QUIZ – UPPER EXTREMITY | QUESTIONS AND ANSWERS | 2026 UPDATED | SCORE A+ | WITH COMPLETE SOLUTIONS.

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,
, SPHE 421 WEEK 3 QUIZ – UPPER
EXTREMITY | QUESTIONS AND ANSWERS
| 2026 UPDATED | SCORE A+ | WITH
COMPLETE SOLUTIONS.



SECTION 1: SHOULDER COMPLEX AND SCAPULAR
MUSCLES (Questions 1-10)
Question 1. The upper trapezius, serratus anterior, and lower trapezius
have which of the following actions in common?

A) Retraction of the scapula
B) Protraction of the scapula
C) Upward rotation of the scapula
D) Depression of the scapula

Answer: C) Upward rotation of the scapula

Rationale: The upper trapezius, serratus anterior, and lower trapezius all
contribute to upward rotation of the scapula . This is essential for overhead
reaching and is a classic example of a force couple.

Section: Shoulder Complex - Scapular Muscles
Source: SPHE 421 Final Exam




Question 2. The rotator cuff muscles serve to hold the humeral head
against the glenoid fossa and best serve to facilitate which arthrokinematic
motion of the shoulder joint?

A) Roll
B) Spin
C) Glide
D) Shear

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