Human Anatomy (8th Edition) - Standalone book
8th Edition
ISBN: 9780321883322
Author: Frederic H. Martini, Robert B. Tallitsch
Publisher: PEARSON
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Chapter 11, Problem 14RFT
Summary Introduction
Introduction:
The humerus is the longest bone of the upper limbs, which runs from the shoulder to the elbow. It connects the shoulder blade (scapula) and the bones of the lower arm (radius and ulna).
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3) The origin of the brachioradialis is on the distal end of the humerus, it inserts onto the surface of the radius proximal to the styloid process, and it acts to flex the arm at the elbow. The resistance is the weight of your hand. This arrangement describes a:
a) first-class lever.
b) second-class lever.
c) third-class lever.
Putting It All Together
A. Humerus
B. Brachialis
C. Biceps brachii
D. Triceps brachii
(long head)
E. Triceps brachii
(medial head)
F. Triceps brachii
(lateral head)
Lateral
Posterior
Why does the brachialis flex the elbow equally well in either pronation or supination?
Chapter 11 Solutions
Human Anatomy (8th Edition) - Standalone book
Ch. 11 - Match each numbered item with the most closely...Ch. 11 - Prob. 2RFTCh. 11 - Prob. 3RFTCh. 11 - Prob. 4RFTCh. 11 - Prob. 5RFTCh. 11 - Prob. 6RFTCh. 11 - Match each numbered item with the most closely...Ch. 11 - Prob. 8RFTCh. 11 - Prob. 9RFTCh. 11 - Prob. 10RFT
Ch. 11 - Prob. 11RFTCh. 11 - Prob. 12RFTCh. 11 - 13. Which of the following is not a muscle of the...Ch. 11 - Prob. 14RFTCh. 11 - Prob. 15RFTCh. 11 - Prob. 16RFTCh. 11 - Damage to the pectoralis major would interfere...Ch. 11 - 2. Which of the following muscles abducts the...Ch. 11 - Prob. 3RCCh. 11 - Prob. 4RCCh. 11 - Prob. 5RCCh. 11 - Prob. 6RCCh. 11 - Prob. 7RCCh. 11 - Prob. 8RCCh. 11 - Prob. 9RCCh. 11 - Prob. 10RCCh. 11 - Prob. 1CTCh. 11 - While playing soccer, Jerry pulls his hamstrings....Ch. 11 - While unloading the trunk of her car, Linda pulls...
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- All of the following movements are possible at the radiocarpaljoint excepta. circumduction.b. abduction.c. flexion.d. rotation.arrow_forwardPutting It All Together A. Radius B. Ulna C. Flexor digitorum superficialis D. Flexor digitorum profundus E. Flexor carpi ulnaris F. Flexor carpi radialis G. Brachioradialis H. Palmaris longus I. Flexor pollicis longus. Medial Anterior Posterior Dearrow_forwardWhich of the following is not a pulse point? (a) anatomical snuff box, (b) inferior margin of mandible anterior to masseter muscle, (c) center of distal forearm at palmaris longus tendon, (d) medial bicipital furrow on arm, (e) dorsum of foot between the first two metatarsals.arrow_forward
- (a) Name the lateral rotators of the hip. (b) Explain the main function of each of the three gluteal muscles.arrow_forwardMatch the movement on the left with the appropriate description on the right. (1) rotation (2) supination (3) extension (4) eversion (5) protraction (6) flexion (7) pronation (8) abduction (9) depression (10) adduction A. turning the palm upward B. decreasing the angle between parts C. moving a part forward D. moving a part around an axis E. moving a part toward midline F. turning the foot so plantar surface faces laterally G. increasing the angle between parts H. lowering a part I. turning the palm downward J. moving a part away from midlinearrow_forwardName the muscles of the glenohumeral joint, and explain how each moves the humerusarrow_forward
- A man bends backward to stretch his back after a long day's labour. Which of the following features is characteristic in the thoracic vertebral column with this movement? Select one: a. Interspinous ligaments are stretched b. Intervertebral disc spaces are widened posteriorly c. Anterior longitudinal ligament is stretched d. Posterior longitudinal ligament is stretched e. Spines are separated far away from each otherarrow_forward1st cervical Mastoid prooess vertebra Mastoid process -Middle scalene Splenius Sternocleido mastoid Anterior scalene Spinous processes -Posterior scalene vertebrae cervicis (a) Anterior view, muscles that flex, laterally fiex and rotate the head (b) Posterior view, deep back muscles that extend the head and neck, superficial layer Muscles that Move the Trunk Origin Insertion Action Erector Spinae, Iliocostalis group Erector Spinae, Longissimus group Erector Spinae, Spinalis group Quadratus Lumborum Abdominal muscles (see below)arrow_forwardWhich of the following bony features is not in or near the hip joint? (a) acetabulum, (b) sacral promontory, (c) greater trochanter, (d) neck of femur.arrow_forward
- Match the muscles to their descriptions and functions.(1) buccinator A. inserted on coronoid process of mandible (2) epicranius B. elevates corner of mouth (3) orbicularis oris C. elevates scapula (4) platysma D. brings head into an upright position (5) rhomboid major E. elevates eyebrow (6) splenius capitis F. compresses cheeks (7) temporalis G. fascia in upper chest is origin (8) zygomaticus H. closes lips (9) biceps brachii I. extends forearm at elbow (10) brachialis J. extends arm at shoulder (11) deltoid K. abducts arm (12) latissimus dorsi L. inserted on radial tuberosity (13) pectoralis major M. flexes arm at shoulder (14) pronator teres N. pronates forearm (15) teres minor O. inserted on coronoid process of ulna (16) triceps brachii P. rotates arm laterally (17) biceps femoris Q. inverts foot (18) external oblique R. member of quadriceps femoris group (19) gastrocnemius S. plantar flexor of foot (20) gluteus maximus T. compresses contents of abdominal cavity (21) gluteus medius…arrow_forwardIsmail is an unrestrained passenger in the front seat of a car that strikes a utility pole. Ismails tibia contacts the dashboard with great force. Which ligament of the articulatio genus would most likely be torn during this injury? * O anterior cruciate O patellar ligament O fibular (lateral) collateral O posterior cruciate tibial (medial) collateralarrow_forwardWhat are the contents of the 2 separate tunnels encapsulated by the flexor retinaculum?arrow_forward
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