A&P LAB EXAM 1 COMPREHENSIVE EXAM 2026 QUESTIONS AND ANSWERS 100% CORRECT

A&P LAB EXAM 1 COMPREHENSIVE EXAM
2026 QUESTIONS AND ANSWERS 100%
CORRECT

⩥ Sternocleidomastoid. Answer: 1. Rotates and lowers head
2. Originates on the sternum and clavicle and inserts in the mastoid
process of temporal bone


⩥ Occipitalis. Answer:


⩥ Rectus abdominis. Answer: 1. Compresses abdomen and flexes
vertebral column
2. Originates on the pubis and inserts in costal cartilages 5-7 and xiphoid


⩥ External oblique. Answer: 1. Compresses abdomen and flexes one
side of the vertebral column
2. Originates on the lower 8 ribs and inserts in iliac crest and linea alba


⩥ Internal oblique. Answer: 1. Compresses abdomen and flexes one side
of the vertebral column
2. Originates on the iliac crest and lumbar fascia and inserts in costal
cartilages of the last 3-4 ribs

, ⩥ Transverse abdominis. Answer: 1. Compresses abdomen
2. Originates on the iliac crest, lumbar fascia, and cartilages of the last 6
ribs and inserts in the xiphoid process, linea alba, and pubic


⩥ Trapezius. Answer: 1. Elevates clavicle, adducts scapula, and extends
head
2. Originates on the occipital bone and vertebral spines and inserts in the
clavicle and scapula


⩥ Rhomboideus major. Answer: 1. Adducts scapula and rotates it
downward
2. Originates on vertebral spines and inserts in scapula


⩥ Pectoralis minor. Answer: 1. Depresses and moves scapula anteriorly
2. Originates on ribs 3-5 and inserts in corocoid of scapula


⩥ Serratus anterior. Answer: 1. Rotates scapula upward and laterally
2. Originates on ribs and inserts in scapula


⩥ Pectoralis major. Answer: 1. Flexes and adducts arm
2. Originates on sternum and clavicle and inserts in humerus


⩥ Teres major. Answer: 1. Extends arm and rotates medially