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Stonemont College of Biological Sciences

Department of Human Physiology

BIO 201: Human Anatomy and Physiology I

Instructor: Prof. William Hayes

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Assignment 1: Applied Musculoskeletal Identification

Due Date: September 12, 2025

Submission Format: Typed, double-spaced, 12-point Times New Roman, submitted via campus portal.

Objective

The purpose of this assignment is to test your ability to correctly identify, describe, and analyze the anatomical structures of the human body using applied visual aids. The figures included below are reference images of muscular structures in action. You are expected to demonstrate your understanding of proper terminology, muscle function, and placement by answering the questions provided.

Instructions

1. Carefully examine each of the figures included in this packet.

2. For each figure, identify the muscle(s) being flexed, the origin and insertion points, and the primary action.

3. Provide a 150–200 word written explanation for each figure. Answers must reference correct anatomical terminology.

4. You may consult your textbook and lecture notes, but answers must be your own work.

Figures for Reference

Figure 1: Demonstration of the Pectoralis Major

(Image: Prof. Hayes standing square to the camera, shirt removed, arms spread wide in a front-lat spread. Expression neutral.)

Prompt: Identify the muscle group emphasized. Describe its function in adduction and internal rotation of the humerus.

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Figure 2: Demonstration of the Biceps Brachii

(Image: Prof. Hayes performing a side bicep curl, arm fully flexed, veins visible. Expression neutral.)

Prompt: Identify the primary muscle being flexed. Explain the relationship between this muscle and the brachialis during flexion of the forearm.

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Figure 3: Demonstration of the Rectus Abdominis

(Image: Prof. Hayes leaning slightly forward, abdominals fully tensed and visible. Expression neutral.)

Prompt: Identify the visible muscle group. Discuss its role in trunk flexion and postural support.

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Figure 4: Demonstration of the Latissimus Dorsi

(Image: Prof. Hayes turned away from the camera, performing a rear-lat spread. Back musculature clearly visible. Expression unseen, but presumed neutral.)

Prompt: Identify the highlighted muscles. Explain their function in extension, adduction, and medial rotation of the shoulder joint.

Grading Criteria

* Accuracy of anatomical identification (40%)

* Clarity and completeness of explanations (30%)

* Use of correct terminology (20%)

* Organization and formatting (10%)

Note from Instructor:

Approach this assignment with seriousness. These images are intended as precise, living diagrams of human musculature in action. Treat them as you would a medical illustration.

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